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Proceedings Volume Cover

ASME Turbo Expo 2006: Power for Land, Sea, and Air

May 8–11, 2006

Barcelona, Spain

Conference Sponsors:

ISBN:

0-7918-4238-X

In This Volume

General Interest (98)
Transition (15)
Internal Air and Seals (34)

Volume 3: Heat Transfer, Parts A and B

General Interest

Gas Turbine Heat Transfer: 10 Remaining Hot Gas Path Challenges

Ronald S. Bunker

GT 2006; 1-14doi:https://doi.org/10.1115/GT2006-90002

Topics: Gas turbines , Heat transfer , Cooling , Turbines , Temperature gradient , Combustion chambers , Design , Emissions , Engine design , Film cooling

An Experimental and Numerical Study of Heat Transfer and Pressure Loss in a Rectangular Channel With V-Shaped Ribs

Michael Maurer, Jens von Wolfersdorf, Michael Gritsch

GT 2006; 15-24doi:https://doi.org/10.1115/GT2006-90006

Topics: Heat transfer , Pressure , Reynolds number , Computer software , Heat transfer coefficients , Liquid crystals , Steady state , Turbulence

A Comparison of Cylindrical and Fan-Shaped Film-Cooling Holes on a Vane Endwall at Low and High Freestream Turbulence Levels

W. Colban, K. A. Thole, M. Haendler

GT 2006; 25-35doi:https://doi.org/10.1115/GT2006-90021

Topics: Film cooling , Turbulence , Cooling , Manufacturing , Turbines , Airfoils , Cascades (Fluid dynamics) , Flat plates , Flow (Dynamics)

Film-Cooling Effectiveness on a Rotating Blade Platform

A. Suryanarayanan, S. P. Mhetras, M. T. Schobeiri, J. C. Han

GT 2006; 37-47doi:https://doi.org/10.1115/GT2006-90034

Topics: Film cooling , Rotating blades , Turbines , Coolants , Flow (Dynamics) , Rotors , Blades , Rotation , Stators , Cavities

Heat-Flux Measurements and Predictions for the Blade Tip Region of a High-Pressure Turbine

S. M. Molter, M. G. Dunn, C. W. Haldeman, R. F. Bergholz, P. Vitt

GT 2006; 49-60doi:https://doi.org/10.1115/GT2006-90048

Topics: Blades , Heat flux , High pressure (Physics) , Turbines , Computational fluid dynamics , Heat , Stress , Flow (Dynamics) , Design , Steady state

On Active Control of Film-Cooling Flows

Dimitris E. Nikitopoulos, Sumanta Acharya, Jeremiah Oertling, Frank H. Muldoon

GT 2006; 61-69doi:https://doi.org/10.1115/GT2006-90051

Topics: Film cooling , Flow (Dynamics) , Coolants , Computation , Cross-flow , Cycles , Excitation

Mass/Heat Transfer in Rotating, Smooth, High-Aspect Ratio (4:1) Coolant Channels With Curved Walls

Eashwar Sethuraman, Dimitris E. Nikitopoulos, Sumanta Acharya

GT 2006; 71-80doi:https://doi.org/10.1115/GT2006-90052

Topics: Coolants , Curved walls , Heat transfer , Mass transfer , Rotation , Flow (Dynamics) , Blades , Cross section (Physics) , Ducts , Heat

Effects of Sand Ingestion on the Blockage of Film-Cooling Holes

W. S. Walsh, K. A. Thole, Chris Joe

GT 2006; 81-90doi:https://doi.org/10.1115/GT2006-90067

Topics: Film cooling , Sands , Coolants , Temperature , Cooling , Flow (Dynamics) , Particulate matter , Pressure , Aircraft engines , Airfoils

The Effects of Varying the Combustor-Turbine Gap

N. D. Cardwell, N. Sundaram, K. A. Thole

GT 2006; 91-102doi:https://doi.org/10.1115/GT2006-90089

Topics: Combustion chambers , Turbines , Leakage , Coolants , Flow (Dynamics) , High pressure (Physics) , Turbine components , Cascades (Fluid dynamics) , Compressors , Cooling

Film Effectiveness Performance of an Arrowhead-Shaped Film Cooling Hole Geometry

Yoji Okita, Masakazu Nishiura

GT 2006; 103-116doi:https://doi.org/10.1115/GT2006-90108

Topics: Film cooling , Geometry , Airfoils , Coolants , Pressure , Engines , Flow (Dynamics) , Mach number , Reynolds number , Suction

Heat Transfer in a Radially Rotating Square-Sectioned Duct With Two Opposite Walls Roughened by 45° Staggered Ribs

Shyy Woei Chang, Tong-Minn Liou, Wen-Hsien Yeh, Jui-Hung Hung

GT 2006; 117-126doi:https://doi.org/10.1115/GT2006-90153

Topics: Ducts , Heat transfer , Buoyancy , Flow (Dynamics) , Coriolis force , Rotation , Coolants , Cooling , Density , Engines

Experimental Validation of Quasi-Steady Assumption in Modelling of Unsteady Film-Cooling

Stefan Bernsdorf, Martin G. Rose, Reza S. Abhari

GT 2006; 127-137doi:https://doi.org/10.1115/GT2006-90166

Topics: Density , Film cooling , Modeling

The Influence of Aero-Derivative Combustor Turbulence and Reynolds Number on Vane Aerodynamics Losses, Secondary Flows, and Wake Growth

F. E. Ames, J. D. Johnson, N. J. Fiala

GT 2006; 139-148doi:https://doi.org/10.1115/GT2006-90168

Topics: Aerodynamics , Combustion chambers , Flow (Dynamics) , Reynolds number , Turbulence , Wakes , Pressure , Cascades (Fluid dynamics) , Heat transfer , Boundary layers

The Influence of Reynolds Number and Row Position on Surface Pressure Distributions in Staggered Pin Fin Arrays

F. E. Ames, L. A. Dvorak

GT 2006; 149-159doi:https://doi.org/10.1115/GT2006-90170

Topics: Pressure , Reynolds number , Pressure gradient , Flow (Dynamics) , Fluid dynamics , Heat transfer , Pressure measurement , Visualization

Experimental Investigation of Turbine Leakage Flows on the 3D Flow Field and End Wall Heat Transfer

Hans-Ju¨rgen Rehder, Axel Dannhauer

GT 2006; 161-172doi:https://doi.org/10.1115/GT2006-90173

Topics: Flow (Dynamics) , Heat transfer , Leakage , Leakage flows , Turbines

Numerical Investigations of Geometric Design Parameters Defining Nozzle Guide Vane Endwall Heat Transfer

Frank G. Rubensdo¨rffer, Torsten H. Fransson

GT 2006; 173-182doi:https://doi.org/10.1115/GT2006-90177

Topics: Design , Heat transfer , Nozzle guide vanes , Cooling , Flow (Dynamics) , Heat shielding , Cavities , Combustion chambers , Airfoils , Cascades (Fluid dynamics)

Local Internal Impingement Heat Transfer Near a 90 Deg Row of Film Cooling Holes: Part 2 — Effect of Jet Row Position

Lei Xu, Haiping Chang, Guoqiang Chang

GT 2006; 183-187doi:https://doi.org/10.1115/GT2006-90196

Topics: Film cooling , Heat transfer , Jets , Nozzles , Blades , Design , Flow (Dynamics) , Gas turbines , Outflow , Reynolds number

Local Internal Impingement Heat Transfer Near a 30 and 90 Deg Row of Film Cooling Holes: Part 1 — Effect of Flow Parameters

Lei Xu, Haiping Chang, Jingyang Zhang

GT 2006; 189-194doi:https://doi.org/10.1115/GT2006-90197

Topics: Film cooling , Flow (Dynamics) , Heat transfer , Reynolds number , Blades , Gas turbines , Outflow , Cross-flow , Design , Jets

High Resolution Film Cooling Effectiveness Comparison of Axial and Compound Angle Holes on the Suction Side of a Turbine Vane

Scot K. Waye, David G. Bogard

GT 2006; 195-203doi:https://doi.org/10.1115/GT2006-90225

Topics: Film cooling , Resolution (Optics) , Suction , Turbines

High Resolution Film Cooling Effectiveness Measurements of Axial Holes Embedded in a Transverse Trench With Various Trench Configurations

Scot K. Waye, David G. Bogard

GT 2006; 205-213doi:https://doi.org/10.1115/GT2006-90226

Topics: Film cooling , Resolution (Optics)

Large Eddy Simulation of Fully Developed Flow and Heat Transfer in a Rotating Duct With 45° Ribs

Aroon K. Viswanathan, Danesh K. Tafti

GT 2006; 215-229doi:https://doi.org/10.1115/GT2006-90229

Topics: Ducts , Flow (Dynamics) , Heat transfer , Large eddy simulation , Exterior walls , Rotation , Momentum , Turbulence , Vortices , Coriolis force

Three-Dimensional Flow Analysis and Design Improvement of Leading-Edge Film-Cooling in an Inlet Guide Vane

Bai-Tao An, Jian-Jun Liu, Hong-De Jiang

GT 2006; 231-240doi:https://doi.org/10.1115/GT2006-90234

Topics: Design , Film cooling , Flow (Dynamics) , Inlet guide vanes

Experimental Study on the Heat Transfer in the Compound Cooling Passage

Li Li, Shui-Ting Ding, Guo-Qiang Xu, Zhi Tao, Hong-Wu Deng

GT 2006; 241-247doi:https://doi.org/10.1115/GT2006-90250

Topics: Cooling , Heat transfer

Prediction of Combustor Liner Cooling

Jiankun Yuan, Mehmet Dede, Osman Buyukisik, Yuexi Xiong

GT 2006; 249-257doi:https://doi.org/10.1115/GT2006-90269

Topics: Combustion chambers , Cooling , Computational fluid dynamics , Turbulence , Air jets , Carbon dioxide , Computer software , Design , Durability , Energy dissipation

Shaped-Hole Film Cooling With Pulsed Secondary Flow

Shichuan Ou, Richard B. Rivir

GT 2006; 259-269doi:https://doi.org/10.1115/GT2006-90272

Topics: Film cooling , Flow (Dynamics) , Coolants , Heat transfer coefficients , Cycles , Geometry , Shapes , Density , Diffusion (Physics) , Heat

Numerical Insight Into Flow and Thermal Patterns Within an Inlet Profile Generator Comparing to Experimental Results

V. R. Kunze, M. Wolff, M. D. Barringer, K. A. Thole, M. D. Polanka

GT 2006; 271-283doi:https://doi.org/10.1115/GT2006-90276

Topics: Flow (Dynamics) , Generators , Combustion chambers , Turbines , Computational fluid dynamics , Design , Air Force , Boundary layer turbulence , Gas turbines , High pressure (Physics)

Effects of Combustor Exit Profiles on High Pressure Turbine Vane Aerodynamics and Heat Transfer

M. D. Barringer, K. A. Thole, M. D. Polanka

GT 2006; 285-295doi:https://doi.org/10.1115/GT2006-90277

Topics: Aerodynamics , Combustion chambers , Heat transfer , High pressure (Physics) , Turbines , Pressure , Temperature profiles , Air Force , Aircraft engines , Generators

Implementation of a Free Stream Turbulence Diffusion Model in FLUENT Code for Calculation of Heat and Momentum Transport in a Flat Plate Boundary Layer

Huseyin O. Aldemir, Savas Yavuzkurt

GT 2006; 297-305doi:https://doi.org/10.1115/GT2006-90301

Topics: Boundary layers , Diffusion (Physics) , Flat plates , Heat , Momentum , Turbulence , Skin friction (Fluid dynamics) , Kinetic energy , Reynolds number , Viscosity

Enhancement of Film Cooling Performance at the Leading Edge of Turbine Blade

K.-S. Kim, Youn J. Kim, S.-M. Kim

GT 2006; 307-313doi:https://doi.org/10.1115/GT2006-90321

Topics: Film cooling , Turbine blades , Coolants , Flow (Dynamics) , Reynolds number , Thermography , Calibration , Carbon dioxide , Cooling , Cylinders

Numerical Study of a Rotating Blade Platform With Film Cooling From Cavity Purge Flow in a 1-1/2 Turbine Stage

Huitao Yang, Hamn-Ching Chen, Je-Chin Han

GT 2006; 315-324doi:https://doi.org/10.1115/GT2006-90322

Topics: Cavities , Film cooling , Flow (Dynamics) , Rotating blades , Turbines , Coolants , Computer simulation , Engineering simulation , Equilibrium (Physics) , Heat transfer coefficients

Measurement of Heat Transfer Coefficient Distributions and Flow Field in a Model of a Turbine Blade Cooling Passage With Tangential Injection

John P. C. W. Ling, Peter T. Ireland, Neil W. Harvey

GT 2006; 325-340doi:https://doi.org/10.1115/GT2006-90352

Topics: Cooling , Flow (Dynamics) , Heat transfer coefficients , Transient heat transfer , Turbine blades

Migration of Film-Coolant From Slot and Hole Ejection at a Turbine Vane Endwall

Friedrich Kost, Arnold Mullaert

GT 2006; 341-351doi:https://doi.org/10.1115/GT2006-90355

Topics: Coolants , Turbines , Film cooling , Boundary layers , Cascades (Fluid dynamics) , Engines , Flow (Dynamics) , Infrared imaging , Lasers , Leakage

Turbine Blade Film Cooling Study: The Effects of Showerhead Geometry

Luzeng Zhang, Hee Koo Moon

GT 2006; 353-361doi:https://doi.org/10.1115/GT2006-90367

Topics: Film cooling , Geometry , Turbine blades , Flow (Dynamics) , Cooling , Pressure , Blades , Cascades (Fluid dynamics) , Coolants , Engines

Rib Spacing Effect on Heat Transfer and Pressure Loss in a Rotating Two-Pass Rectangular Channel (AR=1:2) With 45-Degree Angled Ribs

Yao-Hsien Liu, Lesley M. Wright, Wen-Lung Fu, Je-Chin Han

GT 2006; 363-373doi:https://doi.org/10.1115/GT2006-90368

Topics: Heat transfer , Pressure , Cooling , Rotation , Blades , Flow (Dynamics) , Gas turbines , Reynolds number , Vortices

Influence of Hole Angle and Shaping on Leading Edge Showerhead Film Cooling

Yiping Lu, David Allison, Srinath V. Ekkad

GT 2006; 375-382doi:https://doi.org/10.1115/GT2006-90370

Topics: Film cooling , Heat transfer coefficients , Flow (Dynamics) , Geometry , Reynolds number , Thermography , Transients (Dynamics) , Turbine blades

Film Cooling Effectiveness Distribution on a Gas Turbine Blade Platform With Inclined Slot Leakage and Discrete Film Hole Flows

Lesley M. Wright, Zhihong Gao, Huitao Yang, Je-Chin Han

GT 2006; 383-394doi:https://doi.org/10.1115/GT2006-90375

Topics: Blades , Film cooling , Flow (Dynamics) , Gas turbines , Leakage , Coolants , Turbulence , Cooling , Rotors , Turbine blades

3-D Numerical Analysis of Curved Transpiration Cooled Plates and Homogenization of Their Aerothermal Properties

Gottfried Laschet, Stephan Rex, Dieter Bohn, Robert Krewinkel

GT 2006; 395-406doi:https://doi.org/10.1115/GT2006-90377

Topics: Numerical analysis , Plates (structures) , Transpiration , Cooling , Fluid dynamics , Permeability , Fluids , Gas turbines , Heat transfer , Superalloys

Effects of Surface Deposition, Hole Blockage, and TBC Spallation on Vane Endwall Film-Cooling

N. Sundaram, K. A. Thole

GT 2006; 407-418doi:https://doi.org/10.1115/GT2006-90379

Topics: Film cooling , Spallation (Nuclear physics) , Cooling , Fuels , Coal , Turbines , Cascades (Fluid dynamics) , Energy generation , Gas turbines , Heat transfer

Computations of Turbulent Flow and Heat Transfer Through a Three-Dimensional Non-Axisymmetric Blade Passage

Arun K. Saha, Sumanta Acharya

GT 2006; 419-432doi:https://doi.org/10.1115/GT2006-90390

Topics: Blades , Computation , Heat transfer , Turbulence , Pressure , Flow (Dynamics) , Computer simulation , Design , Pressure gradient , Suction

Heat Transfer at High Rotation Numbers in a Two-Pass 4:1 Aspect Ratio Rectangular Channel With 45-Degree Skewed Ribs

Fuguo Zhou, Sumanta Acharya

GT 2006; 433-445doi:https://doi.org/10.1115/GT2006-90391

Topics: Heat transfer , Rotation , Reynolds number , Buoyancy , Coolants , Copper , Density , Flow (Dynamics) , Geometry , Pressure drop

Experimental Evaluation of an Inlet Profile Generator for High Pressure Turbine Tests

M. D. Barringer, K. A. Thole, M. D. Polanka

GT 2006; 447-458doi:https://doi.org/10.1115/GT2006-90401

Topics: Generators , High pressure (Physics) , Turbines , Combustion chambers , Flow (Dynamics) , Heat transfer , Pressure , Temperature , Turbulence , Aerodynamics

Correlative Analysis of Effusion Cooling Systems

Lorenzo Arcangeli, Marco Surace, Lorenzo Tarchi, Daniele Coutandin, Stefano Zecchi

GT 2006; 459-468doi:https://doi.org/10.1115/GT2006-90405

Topics: Blades , Combustion chambers , Cooling , Cooling systems , Design , Engineering research , Engines , Film cooling , Flow (Dynamics) , Gas turbines

Blade Tip Heat Transfer and Aerodynamics in a Large Scale Turbine Cascade With Moving Endwall

P. Palafox, M. L. G. Oldfield, P. T. Ireland, T. V. Jones, J. E. LaGraff

GT 2006; 469-482doi:https://doi.org/10.1115/GT2006-90425

Topics: Aerodynamics , Blades , Cascades (Fluid dynamics) , Heat transfer , Turbines , Chords (Trusses) , Belts , Airfoils , Clearances (Engineering) , Design

Design of a Carbon-Carbon Finned Surface Heat Exchanger for a High-Bypass Ratio, High Speed Gas Turbine Engine

Tom Filburn, Amanda Kloter, Dave Cloud

GT 2006; 483-490doi:https://doi.org/10.1115/GT2006-90480

Topics: Carbon , Design , Gas turbines , Heat exchangers , Weight (Mass) , Aluminum , Engines , Heat , Heat transfer , Aerospace industry

Novel Technology for Gas Turbine Blade Effusion Cooling

Lorenzo Battisti, Roberto Fedrizzi, Giovanni Cerri

GT 2006; 491-501doi:https://doi.org/10.1115/GT2006-90516

Topics: Blades , Cooling , Gas turbines , Combustion chambers , Temperature , Turbine blades , Computer simulation , Density , Design , Film cooling

Investigation of Velocity Profiles for Effusion Cooling of a Combustor Liner

J. J. Scrittore, K. A. Thole, S. W. Burd

GT 2006; 503-512doi:https://doi.org/10.1115/GT2006-90532

Topics: Combustion chambers , Cooling , Flow (Dynamics) , Film cooling , Coolants , Engines , Film flow , Gas turbines , Laser Doppler anemometry , Wind tunnels

The Effects of Blade Passing on the Heat Transfer Coefficient of the Over-Tip Casing in a Transonic Turbine Stage

Steven J. Thorpe, Roger W. Ainsworth

GT 2006; 513-521doi:https://doi.org/10.1115/GT2006-90534

Topics: Blades , Heat transfer coefficients , Turbines , Flow (Dynamics) , High pressure (Physics) , Temperature , Boundary layers , Cascades (Fluid dynamics) , Convection , Cooling systems

Heat Transfer Measurements in a First Stage Nozzle Cascade Having Endwall Contouring: Misalignment and Leakage Studies

J. D. Piggush, T. W. Simon

GT 2006; 523-533doi:https://doi.org/10.1115/GT2006-90575

Topics: Cascades (Fluid dynamics) , Heat transfer , Leakage , Nozzles , Manufacturing , Boundary layers , Leakage flows , Combustion chambers , Flow (Dynamics) , Gas turbines

Adiabatic Effectiveness Measurements in a First Stage Nozzle Cascade Having Endwall Contouring, Leakage and Assembly Features

J. S. Piggush, T. W. Simon

GT 2006; 535-546doi:https://doi.org/10.1115/GT2006-90576

Topics: Cascades (Fluid dynamics) , Leakage , Manufacturing , Nozzles , Leakage flows , Combustion chambers , Coolants , Cooling , Film cooling , Gas turbines

The Effects of Obstructions on Film Cooling Effectiveness on the Suction Side of a Gas Turbine Vane

Patricia Demling, David G. Bogard

GT 2006; 547-556doi:https://doi.org/10.1115/GT2006-90577

Topics: Film cooling , Gas turbines , Suction , Coolants , Flow (Dynamics) , Temperature profiles , Turbines

A Simple and Accurate Interferometric Fringe Analysis Tool for Skin Friction Measurements

Brian M. Holley

GT 2006; 557-567doi:https://doi.org/10.1115/GT2006-90581

Topics: Aircraft , Airfoils , Cascades (Fluid dynamics) , Contamination , Dust , Interferometry , Pressure , Shear stress , Skin friction (Fluid dynamics) , Testing

Effect of Impingement/Effusion Hole-Area Ratio on Discharge Coefficients of Double Cooling Wall

Chi Zhang, Quanhong Xu, Mengmeng Zhao, Yuzhen Lin, Gaoen Liu

GT 2006; 569-579doi:https://doi.org/10.1115/GT2006-90612

Topics: Cooling , Discharge coefficient , Computational fluid dynamics , Flow (Dynamics) , Diamonds , Pressure

Separate Effects of Mach Number and Reynolds Number on Jet Array Impingement Heat Transfer

Jongmyung Park, Matt Goodro, Phil Ligrani, Mike Fox, Hee-Koo Moon

GT 2006; 581-597doi:https://doi.org/10.1115/GT2006-90628

Topics: Heat transfer , Mach number , Reynolds number , Jets , Discharge coefficient

Endwall Film Cooling Through Fan-Shaped Holes With Different Area Ratios

Giovanna Barigozzi, Giuseppe Franchini, Antonio Perdichizzi

GT 2006; 599-609doi:https://doi.org/10.1115/GT2006-90684

Topics: Cascades (Fluid dynamics) , Coolants , Film cooling , Flow (Dynamics) , Liquid crystals , Momentum , Nozzles , Probes

Simulation of Mist Film Cooling at Gas Turbine Operating Conditions

Ting Wang, Xianchang Li

GT 2006; 611-621doi:https://doi.org/10.1115/GT2006-90742

Topics: Film cooling , Gas turbines , Simulation , Drops , Cooling , Pressure , Temperature , Flow (Dynamics) , Water , Computer simulation

Advanced Doublewall Cooling System Development for Turbine Vanes

Daniele Coutandin, Simone Taddei, Bruno Facchini

GT 2006; 623-632doi:https://doi.org/10.1115/GT2006-90784

Topics: Cooling systems , Heat transfer , Turbines

The Influence of Including a Partially Smooth Section in the 2nd Leg of an Internally Ribbed Two Pass Cooling Channel

Detlef Pape, Sean Jenkins, Jens von Wolfersdorf, Bernhard Weigand, Martin Schnieder

GT 2006; 633-645doi:https://doi.org/10.1115/GT2006-90802

Topics: Cooling , Heat transfer , Pressure , Fluids , Liquid crystals , Transients (Dynamics) , Blades , Durability , Flow (Dynamics) , Gas turbines

Experimental Study of the Thermal Development in a Rotating Square-Ended U-Bend

Hector Iacovides, Diamantis Kounadis, Brian E. Launder, Zeyuan Xu

GT 2006; 647-655doi:https://doi.org/10.1115/GT2006-90846

Topics: Air flow , Blades , Cooling , Exterior walls , Flow (Dynamics) , Liquid crystals , Rotation , Steady state , Water

Computational Investigation of Flow and Heat Transfer for a Row of Circular Jets Impinging on a Concave Surface

B. V. N. Rama Kumar, B. V. S. S. S. Prasad

GT 2006; 657-667doi:https://doi.org/10.1115/GT2006-90851

Topics: Flow (Dynamics) , Heat transfer , Jets , Pressure , Turbulence

Improving Film Cooling Performance Using Airfoil Contouring

Atul Kohli, David G. Bogard

GT 2006; 669-676doi:https://doi.org/10.1115/GT2006-90852

Topics: Airfoils , Film cooling , Cooling , Computational fluid dynamics , Geometry , Optimization , Design , Mesh generation , Pressure , Reynolds-averaged Navier–Stokes equations

Double-Jet Ejection of Cooling Air for Improved Film-Cooling

Karsten Kusterer, Dieter Bohn, Takao Sugimoto, Ryozo Tanaka

GT 2006; 677-687doi:https://doi.org/10.1115/GT2006-90854

Topics: Cooling , Film cooling , Kidney , Vortices

The Effects of Unintentional Deviations Due to Manufacturing of Cooling Holes and Operation on Transpiration Cooling Efficiency

Dieter Bohn, Robert Krewinkel

GT 2006; 689-699doi:https://doi.org/10.1115/GT2006-90856

Topics: Cooling , Manufacturing , Transpiration , Flow (Dynamics) , Fluid dynamics , Aerodynamics , Combustion chambers , Coolants , Gas turbines , Geometry

Comparison of Four Different Two-Equation Models of Turbulence in Predicting Film Cooling Performance

Jawad S. Hassan, Savas Yavuzkurt

GT 2006; 701-710doi:https://doi.org/10.1115/GT2006-90860

Topics: Film cooling , Turbulence , Flow (Dynamics) , Computational fluid dynamics , Cross-flow , Density , Errors , Simulation , Temperature

Effect of Feed Channel Width on Heat Transfer in a Rectangular Duct With an Array of Off-Set Jets

Luai M. Al-Hadhrami

GT 2006; 711-720doi:https://doi.org/10.1115/GT2006-90866

Topics: Ducts , Heat transfer , Jets , Outflow , Flow (Dynamics) , Orifices , Reynolds number

Heat Transfer Measurements and Predictions for a Modern, High-Pressure, Transonic Turbine, Including Endwalls

James A. Tallman, Charles W. Haldeman, Michael G. Dunn, Anil K. Tolpadi, Robert F. Bergholz

GT 2006; 721-737doi:https://doi.org/10.1115/GT2006-90927

Topics: Heat transfer , High pressure (Physics) , Turbines , Computational fluid dynamics , Airfoils , Flow (Dynamics) , Pressure , Boundary-value problems , Computation , Engines

Impulse Response Processing of Transient Heat Transfer Gauge Signals

M. L. G. Oldfield

GT 2006; 739-750doi:https://doi.org/10.1115/GT2006-90949

Topics: Gages , Impulse (Physics) , Signals , Transient heat transfer , Heat transfer , Approximation , Differential equations , Filters , Heat flux , Transients (Dynamics)

Aerodynamic and Heat Flux Measurements in a Single Stage Fully Cooled Turbine: Part I — Experimental Approach

C. W. Haldeman, R. M. Mathison, M. G. Dunn, S. Southworth, J. W. Harral, G. Heitland

GT 2006; 751-762doi:https://doi.org/10.1115/GT2006-90966

Topics: Heat flux , Turbine components , Blades , Pressure , Temperature , Airfoils , Cooling , Reynolds number , Turbines , Arches

Aerodynamic and Heat Flux Measurements in a Single Stage Fully Cooled Turbine: Part II — Experimental Results

C. W. Haldeman, R. M. Mathison, M. G. Dunn, S. Southworth, J. W. Harral, G. Heitland

GT 2006; 763-776doi:https://doi.org/10.1115/GT2006-90968

Topics: Arches , Blades , Cavities , Computational fluid dynamics , Coolants , Film cooling , Flow (Dynamics) , Geometry , Heat flux , Heat transfer

Heat Transfer Measurements in a Rotating Equilateral Triangular Channel With Various Rib Arrangements

Dong Hyun Lee, Dong-Ho Rhee, Hyung Hee Cho, Hee-Koo Moon

GT 2006; 777-785doi:https://doi.org/10.1115/GT2006-90973

Topics: Heat transfer , Heat transfer coefficients , Flow (Dynamics) , Pressure , Suction , Blades , Coolants , Cooling , Copper , Coriolis force

Thermal Analysis and Durability Design Strategies for Gas Turbine Airfoils

F. J. Cunha, W. Abdel-Messeh, M. K. Chyu

GT 2006; 787-803doi:https://doi.org/10.1115/GT2006-91013

Topics: Airfoils , Design , Durability , Gas turbines , Thermal analysis , Cooling , Turbines , Flow (Dynamics) , Coolants , Engines

Thermal-Mechanical Life Prediction System for Coated Anisotropic Turbine Components

F. J. Cunha, V. Seetharaman, M. K. Chyu

GT 2006; 805-817doi:https://doi.org/10.1115/GT2006-91017

Topics: Anisotropy , Turbine components , Damage , Creep , Oxidation , Airfoils , Deformation , Fatigue damage , Stress , Temperature

Heat Transfer in an Airfoil Trailing Edge Configuration With Shaped Pedestals Mounted Internal Cooling Channel and Pressure Side Cutback

Shuping P. Chen, Peiwen W. Li, Minking K. Chyu, Frank J. Cunha, William Abdel-Messeh

GT 2006; 819-828doi:https://doi.org/10.1115/GT2006-91019

Topics: Airfoils , Cooling , Heat transfer , Pressure , Heat transfer coefficients , Liquid crystals , Transients (Dynamics) , Capacitance , Coolants , Imaging

The Influence of Heat Transfer Effects on Turbine Performance Characteristics

A. G. Stamatis, K. Mathioudakis

GT 2006; 829-838doi:https://doi.org/10.1115/GT2006-91039

Topics: Heat transfer , Performance characterization , Turbines , Flow (Dynamics) , Dimensions , Temperature , Boundary layers , Blades , Cooling , Cycles

Computational Study of a Midpassage Gap and Upstream Slot on Vane Endwall Film-Cooling

Satoshi Hada, Karen A. Thole

GT 2006; 839-848doi:https://doi.org/10.1115/GT2006-91067

Topics: Film cooling , Combustion chambers , Cooling , Turbines , Combustion , Design , Heat transfer , Leakage flows , Nitrogen oxides , Temperature

3D Flow Prediction and Improvement of Holes Arrangement of a Film-Cooled Turbine Blade Using a Feature-Based Jet Model

Andre´ Burdet, Reza S. Abhari

GT 2006; 849-863doi:https://doi.org/10.1115/GT2006-91073

Topics: Flow (Dynamics) , Turbine blades , Blades , Coolants , Film cooling , Cooling , Pressure , Cascades (Fluid dynamics) , Computational fluid dynamics , Jets

Conjugate Heat Transfer Analysis of a Cooled Turbine Vane Using the V2F Turbulence Model

Jiang Luo, Eli H. Razinsky

GT 2006; 865-875doi:https://doi.org/10.1115/GT2006-91109

Topics: Heat transfer , Turbines , Turbulence , Metals , Cooling , Temperature , Design , Aerodynamics , Boundary layers , Flow (Dynamics)

Effects of Bleed Flow on Heat/Mass Transfer in a Rotating Rib-Roughened Channel

Yun Heung Jeon, Suk Hwan Park, Kyung Min Kim, Dong Hyun Lee, Hyung Hee Cho

GT 2006; 877-885doi:https://doi.org/10.1115/GT2006-91122

Topics: Flow (Dynamics) , Heat , Mass transfer , Rotation , Friction , Heat transfer coefficients , Pressure drop , Reynolds number

Influence of Rib Turbulators on Pin-Fin Heat Transfer in the Trailing Region of Gas Turbine Vane: A Numerical Study

N. Kulasekharan, B. V. S. S. S. Prasad

GT 2006; 887-898doi:https://doi.org/10.1115/GT2006-91124

Topics: Gas turbines , Heat transfer , Shapes , Coolants , Diamonds , Fins , Heat transfer coefficients , Pressure , Pressure drop , Boundary-value problems

Time-Resolved Heat Transfer Measurements on the Tip Wall of a Ribbed Channel Using a Novel Heat Flux Sensor: Part I — Sensor and Benchmarks

Tim Roediger, Helmut Knauss, Uwe Gaisbauer, Ewald Kraemer, Sean Jenkins, Jens von Wolfersdorf

GT 2006; 899-908doi:https://doi.org/10.1115/GT2006-91129

Topics: Heat flux , Heat transfer , Sensors , Blades , Cooling , Crystals , Design , Flow (Dynamics) , Fluctuations (Physics) , Frequency response

Time-Resolved Heat Transfer Measurements on the Tip Wall of a Ribbed Channel Using a Novel Heat Flux Sensor: Part II — Heat Transfer Results

Sean Jenkins, Jens von Wolfersdorf, Bernhard Weigand, Tim Roediger, Helmut Knauss, Ewald Kraemer

GT 2006; 909-920doi:https://doi.org/10.1115/GT2006-91131

Topics: Cooling , Heat flux , Heat transfer , Sensors , Turbulence

Preventing Hot Gas Ingestion by Film-Cooling Jets via Flow-Aligned Blockers

T. I.-P. Shih, S. Na, M. Chyu

GT 2006; 921-929doi:https://doi.org/10.1115/GT2006-91161

Topics: Film cooling , Flow (Dynamics) , Jets , Prisms (Optics) , Heat transfer , Pressure , Computation , Design , Gases , Navier-Stokes equations

Increasing Adiabatic Film-Cooling Effectiveness by Using an Upstream Ramp

S. Na, T. I.-P. Shih

GT 2006; 931-938doi:https://doi.org/10.1115/GT2006-91163

Topics: Film cooling , Heat transfer , Boundary layers , Computation , Design , Drag (Fluid dynamics) , Flow (Dynamics) , Geometry , Jets , Navier-Stokes equations

Improvement of Heat Transfer Performance of Turbulence Promoter Ribs

Yasuhiro Horiuchi, Nobuaki Kizuka, Shinya Marushima

GT 2006; 939-946doi:https://doi.org/10.1115/GT2006-91168

Topics: Heat transfer , Turbulence , Flow (Dynamics) , Heat transfer coefficients , Coolants , Experimental methods , Large eddy simulation , Numerical analysis , Pressure

Passive Shroud Cooling Concepts for HP Turbines: CFD Based Design Approach

E. Janke, F. Haselbach, C. Whitney, V. Kanjirakkad, R. Thomas, H. Hodson

GT 2006; 947-956doi:https://doi.org/10.1115/GT2006-91194

Topics: Computational fluid dynamics , Cooling , Design , Turbines , Coolants , Flow (Dynamics) , Film cooling , Temperature , Cycles , Aircraft engines

Experimental and Numerical Study of Mass/Heat Transfer on an Airfoil Trailing-Edge Slots and Lands

M. Cakan, M. E. Taslim

GT 2006; 957-967doi:https://doi.org/10.1115/GT2006-91201

Topics: Airfoils , Heat transfer , Cooling , Turbulence , Boundary-value problems , Heat transfer coefficients , Pressure , Computational fluid dynamics , Computer software , Design

Effects of Thermal Barrier Coatings on Approaches to Turbine Blade Cooling

R. J. Boyle

GT 2006; 969-981doi:https://doi.org/10.1115/GT2006-91202

Topics: Cooling , Thermal barrier coatings , Turbine blades , Film cooling , Nitrogen oxides , Turbines , Boundary layers , Coolants , Cycles , Design

Comparative Study Between a Cut-Back and Conventional Trailing Edge Film Cooling System

Janendra C. Telisinghe, Peter T. Ireland, Terry V. Jones, David Barrett, Changmin Son

GT 2006; 983-993doi:https://doi.org/10.1115/GT2006-91207

Topics: Film cooling , Flat plates , Pressure measurement , Turbine blades , Discharge coefficient , Pressure , Reynolds number , Wind tunnels

Enhancement of Impingement Cooling in a High Cross Flow Channel Using Shaped Impingement Cooling Holes

Andrew C. Chambers, David R. H. Gillespie, Peter T. Ireland, Mark Mitchell

GT 2006; 995-1004doi:https://doi.org/10.1115/GT2006-91229

Topics: Cooling , Cross-flow , Impingement cooling , Jets , Design , Heat transfer , Blades , Coolants , Deflection , Engines

Internal Cooling Near Trailing Edge of a Gas Turbine Airfoil With Cooling Airflow Through Blockages With Holes

S. C. Lau, J. Cervantes, J. C. Han, R. J. Rudolph

GT 2006; 1005-1014doi:https://doi.org/10.1115/GT2006-91230

Topics: Air flow , Airfoils , Cooling , Gas turbines

Detailed Heat Transfer Measurements in a Model of an Integrally Cast Cooling Passage

Ioannis Ieronymidis, David R. H. Gillespie, Peter T. Ireland, Robert Kingston

GT 2006; 1015-1026doi:https://doi.org/10.1115/GT2006-91231

Topics: Cooling , Heat transfer , Blades , Heat transfer coefficients , Reynolds number , Boundary layers , Casting , Ceramics , Computational fluid dynamics , Engines

The Use of High Blockage Ribs to Enhance Heat Transfer Coefficient Distributions in a Model of an Integrally Cast Cooling Manifold

Ioannis Ieronymidis, David R. H. Gillespie, Peter T. Ireland, Robert Kingston

GT 2006; 1027-1039doi:https://doi.org/10.1115/GT2006-91237

Topics: Computational fluid dynamics , Cooling , Heat transfer , Heat transfer coefficients , Manifolds , Blades , Engines , Reynolds number , Design , Flow (Dynamics)

Experimental and Computational Flow Field Studies of an Integrally Cast Cooling Manifold With and Without Rotation

Ioannis Ieronymidis, David R. H. Gillespie, Peter T. Ireland, Robert Kingston

GT 2006; 1041-1053doi:https://doi.org/10.1115/GT2006-91245

Topics: Computational fluid dynamics , Cooling , Flow (Dynamics) , Manifolds , Rotation

Evolution of Surface Deposits on a High Pressure Turbine Blade: Part I — Physical Characteristics

James E. Wammack, Jared Crosby, Daniel Fletcher, Jeffrey P. Bons, Thomas H. Fletcher

GT 2006; 1055-1063doi:https://doi.org/10.1115/GT2006-91246

Topics: High pressure (Physics) , Surface roughness , Turbine blades , Turbines , Particulate matter , Surface finishing , Flow (Dynamics) , Polishing , Combustion chambers , Dust

Passive Shroud Cooling Concepts for HP Turbines: Experimental Investigations

Vasudevan Kanjirakkad, Richard Thomas, Howard Hodson, Erik Janke, Frank Haselbach, Chris Whitney

GT 2006; 1065-1074doi:https://doi.org/10.1115/GT2006-91250

Topics: Cooling , Rotors , Turbines

Evolution of Surface Deposits on a High Pressure Turbine Blade: Part II — Convective Heat Transfer

Jeffrey P. Bons, James E. Wammack, Jared Crosby, Daniel Fletcher, Thomas H. Fletcher

GT 2006; 1075-1082doi:https://doi.org/10.1115/GT2006-91257

Topics: Convection , High pressure (Physics) , Turbine blades , Turbines , Particulate matter , Flow (Dynamics) , Boundary layers , Combustion chambers , Dust , Gas turbines

Effect of Jet Pulsing on Film Cooling: Part 1— Effectiveness and Flowfield Temperature Results

Sarah M. Coulthard, Ralph J. Volino, Karen A. Flack

GT 2006; 1083-1094doi:https://doi.org/10.1115/GT2006-91273

Topics: Film cooling , Temperature , Wire , Jets , Cycles , Engines , Flat plates , Flow (Dynamics) , Geometry , Solenoids

Effect of Jet Pulsing on Film Cooling: Part 2 — Heat Transfer Results

Sarah M. Coulthard, Ralph J. Volino, Karen A. Flack

GT 2006; 1095-1104doi:https://doi.org/10.1115/GT2006-91274

Topics: Film cooling , Heat transfer , Jets , Cycles , Flow (Dynamics) , Heat flux , Vortices , Engines , Flat plates , Solenoids

The Role of Leading-Edge Contouring on End-Wall Flow and Heat Transfer: Computations and Experiments

Arun K. Saha, Gazi I. Mahmood, Sumanta Acharya

GT 2006; 1105-1118doi:https://doi.org/10.1115/GT2006-91318

Topics: Computation , Flow (Dynamics) , Heat transfer , Blades , Vortices , Boundary layers , Kinetic energy , Turbulence , Vorticity , Cascades (Fluid dynamics)

Transition

RANS Modelling of Wake Induced Transition With the Dynamic Intermittency Concept

Koen Lodefier, Erik Dick

GT 2006; 1119-1126doi:https://doi.org/10.1115/GT2006-90044

Topics: Modeling , Reynolds-averaged Navier–Stokes equations , Wakes , Turbulence , Cascades (Fluid dynamics) , Equations of motion , Momentum , Navier-Stokes equations , Physics , Shapes

Assessment of the Impact of Laminar-Turbulent Transition on the Accuracy of Heat Transfer Coefficient Prediction in High Pressure Turbines

Mahmoud L. Mansour, Khosro Molla Hosseini, Jong S. Liu, Shraman Goswami

GT 2006; 1127-1138doi:https://doi.org/10.1115/GT2006-90273

Topics: Heat transfer coefficients , High pressure (Physics) , Turbines , Turbulence , Computational fluid dynamics , Airfoils , Cascades (Fluid dynamics) , Modeling , Reynolds-averaged Navier–Stokes equations , Boundary-value problems

Modeling of Rough Wall Boundary Layer Transition and Heat Transfer on Turbine Airfoils

M. Stripf, A. Schulz, H.-J. Bauer

GT 2006; 1139-1151doi:https://doi.org/10.1115/GT2006-90316

Topics: Airfoils , Boundary layers , Heat transfer , Modeling , Surface roughness , Turbines , Boundary layer turbulence , Turbulence , Accounting , Computation

Application of the Turbulent Potential Model to Heat Transfer Predictions on a Turbine Guide Vane

Rene Pecnik, Wolfgang Sanz

GT 2006; 1153-1161doi:https://doi.org/10.1115/GT2006-90365

Topics: Guide vanes , Heat transfer , Turbines , Turbulence , Pressure gradient , Boundary layer turbulence , Cascades (Fluid dynamics) , Computer simulation , Equilibrium (Physics) , Flat plates

Flow Characteristics Within and Downstream of a Double-Row Array of Shallow Spherical and Cylindrical Dimples

Artem Khalatov, Aaron Byerley

GT 2006; 1163-1172doi:https://doi.org/10.1115/GT2006-90403

Topics: Flow (Dynamics) , Fluctuations (Physics) , Reynolds number , Turbulence , Unsteady flow , Air Force , Computer software , Flat plates , Flow visualization , Laminar flow

Predicting Transition on Concave Surfaces

Mark W. Johnson

GT 2006; 1173-1179doi:https://doi.org/10.1115/GT2006-90455

Topics: Boundary layers , Flat plates , Modeling , Momentum , Physics , Shapes , Skin friction (Fluid dynamics) , Turbulence , Vortices

Numerical Investigation on a Stator Vane Bypass Transition Over a Separation Bubble Using v′2-f and LCL-Models

Axel Heidecke, Bernd Stoffel

GT 2006; 1181-1190doi:https://doi.org/10.1115/GT2006-90543

Topics: Bubbles , Separation (Technology) , Stators , Turbulence , Boundary layers , Flow (Dynamics) , Inflow , Pressure , Suction , Turbines

Alternatives to Kelvin-Helmholtz Instabilities to Control Separation Bubbles

Mark P. Simens, Javier Jime´nez

GT 2006; 1191-1199doi:https://doi.org/10.1115/GT2006-90670

Topics: Bubbles , Separation (Technology) , Vortices , Pressure gradient , Boundary layers , Flat plates , Flow (Dynamics) , Pressure , Reynolds number

Separated Flow Transition on an LP Turbine Blade With Pulsed Flow Control

Jeffrey P. Bons, Daniel Reimann, Matthew Bloxham

GT 2006; 1201-1210doi:https://doi.org/10.1115/GT2006-90754

Topics: Flow (Dynamics) , Flow control , Turbine blades , Separation (Technology) , Pressure , Blades , Boundary layers , Bubbles , Chords (Trusses) , Turbulence

Boundary Layer Separation Control on a Flat Plate With Adverse Pressure Gradients Using Vortex Generators

Edward Canepa, Davide Lengani, Francesca Satta, Ennio Spano, Marina Ubaldi, Pietro Zunino

GT 2006; 1211-1220doi:https://doi.org/10.1115/GT2006-90809

Topics: Boundary layers , Flat plates , Generators , Pressure gradient , Separation (Technology) , Vortices , Ducts , Flow (Dynamics) , Aerodynamics , Particulate matter

Numerical Study of Instability Mechanisms Leading to Transition in Separation Bubbles

B. R. McAuliffe, M. I. Yaras

GT 2006; 1221-1230doi:https://doi.org/10.1115/GT2006-91018

Topics: Bubbles , Separation (Technology) , Computer simulation , Flow (Dynamics) , Pressure , Turbulence , Computation , Engines , Gas turbines , Momentum

A PIV Study of a Plasma Discharge Flow-Control Actuator on a Flat Plate in an Aggressive Pressure Induced Separation

I. G. Boxx, J. M. Newcamp, M. E. Franke, N. M. Woods, R. B. Rivir

GT 2006; 1231-1242doi:https://doi.org/10.1115/GT2006-91044

Topics: Actuators , Flat plates , Flow control , Plasmas (Ionized gases) , Pressure , Separation (Technology) , Boundary layers , Particulate matter , Suction , Turbine blades

Studies on Wake-Induced Bypass Transition of Flat-Plate Boundary Layers Under Pressure Gradients and Free-Stream Turbulence

Ken-Ichi Funazaki, Eitaro Koyabu

GT 2006; 1243-1250doi:https://doi.org/10.1115/GT2006-91103

Topics: Boundary layers , Flat plates , Pressure gradient , Turbulence , Wakes , Ducts , Flow (Dynamics) , Fluctuations (Physics) , Generators , Pressure

Application of Constructal Theory to Prediction of Boundary Layer Transition Onset

E. J. Walsh, D. H. Hernon, D. M. McEligot, M. R. D. Davies, A. Bejan

GT 2006; 1251-1259doi:https://doi.org/10.1115/GT2006-91166

Topics: Boundary layers

Interactions Between Propagating Wakes and Flow Instabilities in the Presence of a Laminar Separation Bubble

J. P. Gostelow, R. L. Thomas

GT 2006; 1261-1269doi:https://doi.org/10.1115/GT2006-91193

Topics: Bubbles , Flow instability , Separation (Technology) , Wakes , Turbulence , Flow (Dynamics) , Waves , Microphones , Pressure , Shear (Mechanics)

Internal Air and Seals

Transient Thermal and Flow Field in a Turbine Disk Rotor-Stator System

Yoji Okita

GT 2006; 1271-1282doi:https://doi.org/10.1115/GT2006-90033

Topics: Disks , Flow (Dynamics) , Rotors , Stators , Transients (Dynamics) , Turbines , Steady state , Aircraft engines , Fluid dynamics , Fluids

De-Oiler System for Improved Oil Containment

William G. Sheridan, Sarah T. Swayze, J. Axel Glahn

GT 2006; 1283-1290doi:https://doi.org/10.1115/GT2006-90035

Topics: Containment , Pressure , Air flow , Bearings , Design , Gas turbines , Polishing equipment , Sealing (Process) , Compressors , Drops

Physical Interpretation of Flow and Heat Transfer in Pre-Swirl Systems

Paul Lewis, Mike Wilson, Gary Lock, J. Michael Owen

GT 2006; 1291-1300doi:https://doi.org/10.1115/GT2006-90132

Topics: Flow (Dynamics) , Heat transfer , Rotors , Computation , Turbulence , Reynolds number , Stators , Boundary layers , Computational fluid dynamics , Coolants

An Investigation Into the Uncertainty of Turbomachinery Disc Heat Transfer Calculations Using Monte Carlo Simulation Methods

Adam Cooke, Peter Childs, Christopher Long

GT 2006; 1301-1311doi:https://doi.org/10.1115/GT2006-90143

Topics: Disks , Heat flux , Heat transfer , Simulation , Turbomachinery , Uncertainty

Correlation of Pre-Swirl Effectiveness With the Turbulent Flow Parameter and Application to the Mitsubishi MF111 Up-Grade

V. Laurello, J. Masada, M. Araki, K. Ishizaka, T. Nakamura

GT 2006; 1313-1320doi:https://doi.org/10.1115/GT2006-90182

Topics: Turbulence , Temperature , Nozzles , Rotors , Blades , Cooling , Engines , Metals , Testing , Turbines

Nozzle Guide Vane Static Strip Seals

Arash Farahani, Peter Childs

GT 2006; 1321-1331doi:https://doi.org/10.1115/GT2006-90185

Topics: Leakage , Nozzle guide vanes , Strips

Internal Air Systems Experimental Rig Best Practice

Peter Childs, Klaus Dullenkopf, Dieter Bohn

GT 2006; 1333-1343doi:https://doi.org/10.1115/GT2006-90215

Topics: Cavities , Compressors , Cooling , Design , Disks , Engines , Gas turbines , Heat transfer , High pressure (Physics) , Instrumentation

Automatic Optimisation of Pre-Swirl Nozzle Design

Fabio Ciampoli, John W. Chew, Shahrokh Shahpar, Elisabeth Willocq

GT 2006; 1345-1353doi:https://doi.org/10.1115/GT2006-90249

Topics: Design , Nozzles , Optimization , Computational fluid dynamics , Cooling , Design methodology , Manufacturing , Mesh generation , Response surface methodology , Stress

LES and RANS Investigations Into Buoyancy-Affected Convection in a Rotating Cavity With a Central Axial Throughflow

Zixiang Sun, Klas Lindblad, John W. Chew, Colin Young

GT 2006; 1355-1364doi:https://doi.org/10.1115/GT2006-90251

Topics: Buoyancy , Cavities , Convection , Reynolds-averaged Navier–Stokes equations , Flow (Dynamics) , Compressors , Disks , Engineering simulation , Engines , Heat transfer

Probabilistic Analysis of Stationary Gas Turbine Secondary Air Systems

Thomas Bischoff, Matthias Voigt, Ed Chehab, Konrad Vogeler

GT 2006; 1365-1373doi:https://doi.org/10.1115/GT2006-90261

Topics: Design , Flow (Dynamics) , Gas turbines , Industrial gases , Simulation , Turbines

Turbine Stator Well Heat Transfer and Cooling Flow Optimisation

Jeffrey A. Dixon, Ivan L. Brunton, Timothy J. Scanlon, Grzegorz Wojciechowski, Vassilis Stefanis, Peter R. N. Childs

GT 2006; 1375-1383doi:https://doi.org/10.1115/GT2006-90306

Topics: Cooling , Flow (Dynamics) , Heat transfer , Optimization , Stators , Turbines , Disks , Cavities , Computational fluid dynamics , Annulus

Design Features and Performance Details of Brush Seals for Turbine Applications

Matthias Neef, Erik Sulda, Norbert Su¨rken, Jan Walkenhorst

GT 2006; 1385-1392doi:https://doi.org/10.1115/GT2006-90404

Topics: Design , Steam turbines , Turbines , Wear , Leakage , Springs , Steady state , Transients (Dynamics) , Turbomachinery , Wear testing

The Application of CFD to Underpin the Design of Gas Turbine Pre-Swirl Systems

G. D. Snowsill, C. Young

GT 2006; 1393-1401doi:https://doi.org/10.1115/GT2006-90443

Topics: Computational fluid dynamics , Design , Gas turbines , Underpinning , Computation , Cooling , Cooling systems , Cycles , Modeling , Numerical stability

Flow Analysis in Gas Turbine Pre-Swirl Cooling Air Systems: Variation of Geometric Parameters

K. Jarzombek, H. J. Dohmen, F.-K. Benra, O. Schneider

GT 2006; 1403-1411doi:https://doi.org/10.1115/GT2006-90445

Topics: Cooling , Flow (Dynamics) , Gas turbines , Cavities , Computational fluid dynamics , Engineering simulation , Pressure , Rotors , Simulation , Stators

Influence of an Axial and Radial Rim Seal Geometry on Hot Gas Ingestion Into the Upstream Cavity of a 1.5-Stage Turbine

Dieter E. Bohn, Achim Decker, Nils Ohlendorf, Ralf Jakoby

GT 2006; 1413-1422doi:https://doi.org/10.1115/GT2006-90453

Topics: Cavities , Geometry , Rotors , Sealing (Process) , Stators , Turbines

Modelling Sub-Grid Scale Features in Congested Engine Ventilation Zones

Sohail Alizadeh, Barrie Moss

GT 2006; 1423-1431doi:https://doi.org/10.1115/GT2006-90461

Topics: Engines , Modeling , Ventilation , Pipes , Flow (Dynamics) , Heat , Heat transfer , Computational fluid dynamics , Drag (Fluid dynamics) , Ducts

Investigation of the Unstable Flow Structure in a Rotating Cavity

Dieter Bohn, Jing Ren, Christian Tuemmers

GT 2006; 1433-1442doi:https://doi.org/10.1115/GT2006-90494

Topics: Buoyancy , Cavities , Flow (Dynamics)

The Effect of Obstacles in a Liquid Film

Carol Eastwick, Lucie Bertin, Graham Johnson

GT 2006; 1443-1452doi:https://doi.org/10.1115/GT2006-90520

Topics: Bearings , Film flow , Liquid films , Waves , Flow (Dynamics) , Shapes , Cooling , Film thickness , Heat transfer coefficients , Shear (Mechanics)

Advanced Hydraulic Seal Design for High Temperature Environments

J. Denecke, V. Schramm, K. Dullenkopf, H.-J. Bauer, M. Klingsporn, S. Hein, D. Peitsch

GT 2006; 1453-1462doi:https://doi.org/10.1115/GT2006-90651

Topics: Design , High temperature , Bearings , Temperature , Engines , Flow (Dynamics) , Computer simulation , Computer software , Fluids , Gas turbines

An Investigation of Lock Plate Flow

Peter Childs, Carlos Pizarro de la Fuente

GT 2006; 1463-1471doi:https://doi.org/10.1115/GT2006-90652

Topics: Flow (Dynamics) , Locks (Waterways)

Methods for Reducing a Thermal Finite Element Model Including the Advection Network Contribution

Daniele Botto, Stefano Zucca, Muzio M. Gola

GT 2006; 1473-1482doi:https://doi.org/10.1115/GT2006-90676

Topics: Finite element model , Turbines , Temperature , Disks , Stress , Aircraft engines , Algorithms , Computation , Cooling , Degrees of freedom

Numerical Investigation of Worn Labyrinth Seals

Hasham H. Chougule, Douglas Ramerth, Dhinagaran Ramchandran, Ramnath Kandala

GT 2006; 1483-1493doi:https://doi.org/10.1115/GT2006-90690

Topics: Computational fluid dynamics , Computer software , Flow (Dynamics) , Honeycomb structures , Leakage , Modeling

Experimental Analysis of Air/Oil Separator Performance

K. Willenborg, M. Klingsporn, S. Tebby, T. Ratcliffe, P. Gorse, K. Dullenkopf, S. Wittig

GT 2006; 1495-1505doi:https://doi.org/10.1115/GT2006-90708

Topics: Air flow , Aircraft engines , Bearings , Design , Diffraction , Drops , Engines , Experimental analysis , Flow (Dynamics) , Lasers

Numerical Modelling of Three Dimensional Honeycomb Labyrinth Seals Employing a Simplified Approach

Dermot Collins, Joao Amaral Teixeira, Pete Crudgington, Paul C. Ivey

GT 2006; 1507-1518doi:https://doi.org/10.1115/GT2006-90850

Topics: Honeycomb structures , Modeling , Cavities , Pressure , Computational fluid dynamics , Engineering simulation , Simulation , Clearances (Engineering) , Flow (Dynamics) , Geometry

A Method for Estimating the Influence of Time-Dependent Vane and Blade Pressure Fields on Turbine Rim Seal Ingestion

Bruce V. Johnson, Ralf Jakoby, Dieter E. Bohn, Didier Cunat

GT 2006; 1519-1530doi:https://doi.org/10.1115/GT2006-90853

Topics: Blades , Pressure , Turbines , Cavities , Flow (Dynamics) , Fluids , Computer simulation , Coolants , Cooling , Disks

Probabilistic Thermal Analysis of Gas Turbine Internal Hardware

Ethan Stearns, Dave Cloud, Tom Filburn

GT 2006; 1531-1538doi:https://doi.org/10.1115/GT2006-90881

Topics: Gas turbines , Hardware , Thermal analysis , Temperature , Metals , Flow (Dynamics) , Engines , Clearances (Engineering) , Geometry , Heat

Advanced Seal Test Rig Validation and Operation

Gerrit A. Kool, Arjen B. Kloosterman, Edward R. Rademaker, Bambang I. Soemarwoto, Fons M. G. Bingen, Roger E. Paolillo, David F. Cloud

GT 2006; 1539-1549doi:https://doi.org/10.1115/GT2006-90915

Topics: Aerospace industry , Clearances (Engineering) , Compressed air , Computational fluid dynamics , Control systems , Design , Durability , Emissions , Engineering instruments , Engines

Rotating Seal Rig Experiments: Test Results and Analysis Modeling

Roger Paolillo, Cheng-Zhang Wang, T. K. Vashist, David Cloud, Fons M. G. Bingen, Gerrit A. Kool

GT 2006; 1551-1559doi:https://doi.org/10.1115/GT2006-90957

Topics: Computational fluid dynamics , Cooling , Cycles , Design , Engines , Flow (Dynamics) , Fuels , Gas turbines , Leakage , Modeling

Rim Seal Ingestion Characteristics for Axial Gap Rim Seals in a Closely-Spaced Turbine Stage From a Numerical Simulation

Cheng-Zhang Wang, Bruce V. Johnson, David F. Cloud, Roger E. Paolillo, T. K. Vashist, Ramendra P. Roy

GT 2006; 1561-1570doi:https://doi.org/10.1115/GT2006-90965

Topics: Computer simulation , Turbines , Flow (Dynamics) , Pressure , Blades , Airfoils , Cavities , Disks , Gas turbines , Jets

Understanding Friction Factor Behavior in Liquid Annular Seals With Deliberately Roughened Surfaces: Roughness Geometric Characteristics Defining Flow Resistance

L. A. Villasmil, D. W. Childs, H. C. Chen

GT 2006; 1571-1579doi:https://doi.org/10.1115/GT2006-91046

Topics: Flow (Dynamics) , Friction , Surface roughness , Leakage , Clearances (Engineering) , Honeycomb structures , Machinery , Centrifugal pumps , Compressors , Design

Buoyancy-Induced Flow in Open Rotating Cavities

J. Michael Owen, Hans Abrahamsson, Klas Lindblad

GT 2006; 1581-1589doi:https://doi.org/10.1115/GT2006-91134

Topics: Buoyancy , Cavities , Flow (Dynamics) , Computation , Disks , Temperature , Axial flow , Compressors , Computational fluid dynamics , Cooling

Effects of Pressure Ratio and Fin Pitch on Leakage Flow Characteristics in High Rotating Labyrinth Seals

Jun Li, Xin Yan, Zhenping Feng

GT 2006; 1591-1598doi:https://doi.org/10.1115/GT2006-91145

Topics: Leakage flows , Pressure , Sealing (Process) , Clearances (Engineering) , Steam turbines , Turbomachinery , Computation , Computer simulation , Computer software , Design

Advanced Labyrinth Seals for Steam Turbine Generators

Ahmad D. Vakili, Abraham J. Meganathan, Sricharan Ayyalasomayajula, Stephen Hesler, Lewis Shuster

GT 2006; 1599-1608doi:https://doi.org/10.1115/GT2006-91263

Topics: Generators , Steam turbines , Design , Leakage , Flow (Dynamics) , Packing (Shipments) , Packings (Cushioning) , Composite materials , Computer simulation , Internal flow

A Slow-Speed Rotating Test Facility for Characterising the Stiffness of Brush Seals

Gervas Franceschini, Jonathan J. Morgan, Terry V. Jones, David R. H. Gillespie

GT 2006; 1609-1620doi:https://doi.org/10.1115/GT2006-91335

Topics: Stiffness , Test facilities , Engines , Rotors , Computers , Cycles , Engineering prototypes , Flow (Dynamics) , Rotation , Sealing (Process)