Volumes | Turbo Expo: Power for Land, Sea, and Air | American Society of Mechanical Engineers Digital Collection

Topics: Coolants , Optimization , Turbine blades , Airfoils , Finite element analysis , Boundary-value problems , Computers , Convection , Flow (Dynamics) , Gas turbines

Heat Transfer and Friction Factors for Flows Inside Circular Tubes With Concavity Surfaces

Ronald S. Bunker, Katherine F. Donnellan

GT 2003; 21-29doi:https://doi.org/10.1115/GT2003-38053

Abstract

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Topics: Flow (Dynamics) , Friction , Heat transfer , Turbulence , Density , Heat transfer coefficients , Internal flow , Liquid crystals , Reynolds number , Temperature distribution

Experimental and Numerical Investigation of Impingement on a Rib-Roughened Leading-Edge Wall

M. E. Taslim, K. Bakhtari, H. Liu

GT 2003; 31-41doi:https://doi.org/10.1115/GT2003-38118

Abstract

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Topics: Airfoils , Cavities , Computational fluid dynamics , Cooling , Flow (Dynamics) , Gas turbines , Heat , Heat transfer , Heat transfer coefficients , Impingement cooling

Large-Eddy Simulations of Heat Transfer in a Ribbed Channel for Internal Cooling of Turbine Blades

D. K. Tafti

GT 2003; 43-54doi:https://doi.org/10.1115/GT2003-38122

Abstract

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Topics: Cooling , Heat transfer , Large eddy simulation , Turbine blades , Friction , Turbulence , Flow (Dynamics) , Reynolds number , Shear (Mechanics)

The Effect of Turbulator Lean on Heat Transfer and Friction in a Square Channel

Ronald S. Bunker, Sarah J. Osgood

GT 2003; 55-62doi:https://doi.org/10.1115/GT2003-38137

Abstract

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Topics: Friction , Heat transfer , Flow (Dynamics) , Blades , Convection , Cooling , Heat transfer coefficients , Reynolds number , Turbines

Performance Prediction of a Converging Slot-Hole Film-Cooling Geometry

J. E. Sargison, S. M. Guo, M. L. G. Oldfield, G. D. Lock, A. J. Rawlinson

GT 2003; 63-70doi:https://doi.org/10.1115/GT2003-38144

Abstract

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Topics: Film cooling , Geometry , Engines , Computational fluid dynamics , Design , Approximation , Blades , Coolants , Cooling , Cooling systems

Experimental and Numerical Investigation of Trailing Edge Film Cooling by Circular Coolant Wall Jets Ejected From a Slot With Internal Rib Arrays

P. Martini, A. Schulz, S. Wittig

GT 2003; 71-79doi:https://doi.org/10.1115/GT2003-38157

Abstract

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Topics: Coolants , Film cooling , Jets , Cooling , Flow (Dynamics) , Pressure , Discharge coefficient , Turbine blades , Wall temperature

Effect of Blade Tip Geometry on Tip Flow and Heat Transfer for a Blade in a Low Speed Cascade

Vikrant Saxena, Hasan Nasir, Srinath V. Ekkad

GT 2003; 81-90doi:https://doi.org/10.1115/GT2003-38176

Abstract

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Topics: Blades , Cascades (Fluid dynamics) , Flow (Dynamics) , Geometry , Heat transfer , Leakage flows , Strips , Wakes , Chords (Trusses) , Fins

Impingement Heat Transfer Under Linearly Stretched Arrays of Holes

Lujia Gao, Srinath V. Ekkad, Ronald S. Bunker

GT 2003; 91-100doi:https://doi.org/10.1115/GT2003-38178

Abstract

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Topics: Heat transfer , Cross-flow , Engines , Heat transfer coefficients , Liquid crystals , Transients (Dynamics)

Interactions of Film Cooling Rows: Effects of Hole Geometry and Row Spacing on the Cooling Performance Downstream of the Second Row of Holes

Christian Saumweber, Achmed Schulz

GT 2003; 101-110doi:https://doi.org/10.1115/GT2003-38195

Abstract

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Topics: Cooling , Film cooling , Geometry , Boundary layers , Density , Engines , Heat transfer coefficients , Mach number , Turbulence

Heat Transfer and Pressure Drop Evaluation in Thin Wedge-Shaped Trailing Edge

C. Carcassi, B. Facchini, L. Innocenti

GT 2003; 111-122doi:https://doi.org/10.1115/GT2003-38197

Abstract

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Topics: Heat transfer , Pressure drop , Wedges , Fins , Ducts , Heat transfer coefficients , Airfoils , Design , Geometry , Turbines

A Novel Liquid Crystal Image Processing Technique Using Multiple Gas Temperature Steps to Determine Heat Transfer Coefficient Distribution and Adiabatic Wall Temperature

Abd. Rahim Abu Talib, Andrew J. Neely, Peter T. Ireland, Andrew J. Mullender

GT 2003; 123-131doi:https://doi.org/10.1115/GT2003-38198

Abstract

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Topics: Heat transfer coefficients , Image processing , Liquid crystals , Temperature , Transient heat transfer , Wall temperature

Cooling Performance of an Integrated Impingement and Pin Fin Cooling Configuration

Shigemichi Yamawaki, Chiyuki Nakamata, Ryouji Imai, Shinsuke Matsuno, Toyoaki Yoshida, Fujio Mimura, Masaya Kumada

GT 2003; 133-142doi:https://doi.org/10.1115/GT2003-38215

Abstract

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Topics: Computational fluid dynamics , Cooling , Heat transfer , Impingement cooling , Density , Casting , Engines , Film cooling , Flat plates , Geometry

Prediction of Turbulent Heat Transfer and Fluid Flow in 2D Channels Roughened by Square and Deformed Ribs

Rongguang Jia, Bengt Sunde´n

GT 2003; 143-152doi:https://doi.org/10.1115/GT2003-38226

Abstract

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Topics: Fluid dynamics , Turbulent heat transfer , Heat transfer , Computational fluid dynamics , Turbulence , Cooling , Algebra , Combustion chambers , Deformation , Design

Predictions of Cooling From Dirt Purge Holes Along the Tip of a Turbine Blade

E. M. Hohlfeld, J. R. Christophel, E. L. Couch, K. A. Thole

GT 2003; 153-162doi:https://doi.org/10.1115/GT2003-38251

Abstract

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Topics: Cooling , Turbine blades , Blades , Flow (Dynamics) , Heat transfer , Cascades (Fluid dynamics) , Centrifugal force , Clearances (Engineering) , Compressors , Coolants

Computational Predictions of Endwall Film-Cooling for a First Stage Vane

Daniel G. Knost, Karen A. Thole

GT 2003; 163-173doi:https://doi.org/10.1115/GT2003-38252

Abstract

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Topics: Film cooling , Turbines , Cooling , Coolants , Combustion chambers , Compressors , Flow (Dynamics) , Gas turbines , Leakage , Nozzle guide vanes

Flow Field Computations of Combustor-Turbine Interactions Relevant to a Gas Turbine Engine

Sarah Stitzel, Karen A. Thole

GT 2003; 175-183doi:https://doi.org/10.1115/GT2003-38253

Abstract

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Topics: Combustion chambers , Computation , Flow (Dynamics) , Gas turbines , Turbines , Combustion , Temperature , Durability , Heat transfer , Pressure

Systematic Numerical Studies on Heat Transfer and Aerodynamic Characteristics of Impingement Cooling Devices Combined With Pins

K. Funazaki, K. Hachiya

GT 2003; 185-192doi:https://doi.org/10.1115/GT2003-38256

Abstract

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Topics: Heat transfer , Impingement cooling , Pins (Engineering) , Turbulence , Computer software , Dimensions , Fluid dynamics , Numerical analysis , Pressure , Reynolds number

Predictions of Temperature Redistribution in a Turning Duct and in High-Pressure Turbines

T. J. Praisner, J. W. Magowan, J. P. Clark

GT 2003; 193-201doi:https://doi.org/10.1115/GT2003-38317

Abstract

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Topics: Ducts , High pressure (Physics) , Temperature , Turbines , Turning , Engineering simulation , Simulation , Algebra , Enthalpy , Film cooling

Turbine Nozzle Endwall Inlet Film Cooling: The Effect of a Back-Facing Step

Luzeng Zhang, Hee Koo Moon

GT 2003; 203-211doi:https://doi.org/10.1115/GT2003-38319

Abstract

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Topics: Film cooling , Nozzles , Turbines , Flow (Dynamics) , Cooling , Engines , Jets , Mass transfer , Momentum , Nitrogen

Effect of Rotation on Heat Transfer in Narrow Rectangular Cooling Channels (AR = 8:1 and 4:1) With Pin-Fins

Lesley M. Wright, Eungsuk Lee, Je-Chin Han

GT 2003; 213-223doi:https://doi.org/10.1115/GT2003-38340

Abstract

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Topics: Cooling , Fins , Heat transfer , Rotation , Pins (Engineering) , Density , Blades , Coolants , Copper , Flow (Dynamics)

Pressure and Flow Characteristics in a Rotating Two-Pass Square Duct With 45° Angled Ribs

Tong-Miin Liou, Guang-Yuan Dai

GT 2003; 225-235doi:https://doi.org/10.1115/GT2003-38346

Abstract

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Topics: Ducts , Flow (Dynamics) , Pressure , Rotation , Computational fluid dynamics , Computer simulation , Kinetic energy , Lasers , Pressure transducers , Reynolds number

Computation of Flow and Heat Transfer in Rotating Rectangular Channels (AR = 4) With V-Shaped Ribs by a Reynolds Stress Turbulence Model

Guoguang Su, Shuye Teng, Hamn-Ching Chen, Je-Chin Han

GT 2003; 237-246doi:https://doi.org/10.1115/GT2003-38348

Abstract

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Topics: Computation , Flow (Dynamics) , Heat transfer , Stress , Turbulence , Rotation , Coolants , Density , Reynolds number , Flux (Metallurgy)

Conjugate Heat Transfer Analysis for Film Cooling Configurations With Different Hole Geometries

Dieter Bohn, Jing Ren, Karsten Kusterer

GT 2003; 247-256doi:https://doi.org/10.1115/GT2003-38369

Abstract

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Topics: Film cooling , Flow (Dynamics) , Heat transfer

3D-LDA Measurements in an Aero-Engine Bearing Chamber

Ph. Gorse, K. Willenborg, S. Busam, J. Ebner, K. Dullenkopf, S. Wittig

GT 2003; 257-265doi:https://doi.org/10.1115/GT2003-38376

Abstract

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Topics: Aircraft engines , Bearings , Flow (Dynamics) , Air flow , Drops , Industrial lubrication systems , Laser Doppler anemometry , Lubrication , Pressure , Reliability

Experimental Investigation of the Heat Transfer in a Rib-Roughened Leading-Edge Cooling Channel

Thomas Larsson, Christer Hjalmarsson

GT 2003; 267-272doi:https://doi.org/10.1115/GT2003-38399

Abstract

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Topics: Cooling , Heat transfer , Pipes , Pressure drop , Reynolds number , Blades , Databases , Fully developed turbulent flow , Geometry , Performance

Application of Genetic Algorithms to Design of an Internal Turbine Cooling System

C. F. F. Favaretto, K. Funazaki

GT 2003; 273-278doi:https://doi.org/10.1115/GT2003-38408

Abstract

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Topics: Cooling systems , Design , Genetic algorithms , Turbines , Optimization , Boundary-value problems , Computational fluid dynamics , FORTRAN , Heat transfer coefficients , Impingement cooling

Numerical 3-D Conjugate Flow and Heat Transfer Investigation of a Transonic Convection-Cooled Thermal Barrier Coated Turbine Guide Vane With Reduced Cooling Fluid Mass Flow

Dieter E. Bohn, Christian Tu¨mmers

GT 2003; 279-286doi:https://doi.org/10.1115/GT2003-38431

Abstract

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Topics: Convection , Cooling , Flow (Dynamics) , Fluids , Guide vanes , Heat transfer , Turbines , Blades , Thermal stresses , Aerodynamics

Homogenization of Material Properties of Transpiration Cooled Multilayer Plates

Gottfried M. Laschet, Stephan Rex, Dieter Bohn, Norbert Moritz

GT 2003; 287-296doi:https://doi.org/10.1115/GT2003-38439

Abstract

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Topics: Materials properties , Plates (structures) , Transpiration , Cooling , Finite element analysis , Fluid dynamics , Gas turbines , Heat transfer , Microscale devices , Permeability

A Technique for Processing Transient Heat Transfer, Liquid Crystal Experiments in the Presence of Lateral Conduction

John C. P. W. Ling, Peter T. Ireland, Lynne Turner

GT 2003; 297-310doi:https://doi.org/10.1115/GT2003-38446

Abstract

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Topics: Film cooling , Heat conduction , Liquid crystals , Transient heat transfer

A Comparison Between Experimental and Predicted Flow Profiles Beneath a Semi-Confined Axisymmetric Impinging Jet

C. Y. Cheong, P. T. Ireland, S. Ashforth-Frost

GT 2003; 311-316doi:https://doi.org/10.1115/GT2003-38493

Abstract

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Topics: Flow (Dynamics) , Viscous flow , Wire , Turbulence , Air jets , Boundary layers , Nozzles , Stagnation flow

Effects of Catalytic and Dry Low NOx Combustor Turbulence on Endwall Heat Transfer Distributions

F. E. Ames, P. A. Barbot, C. Wang

GT 2003; 317-329doi:https://doi.org/10.1115/GT2003-38507

Abstract

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Topics: Combustion chambers , Heat transfer , Nitrogen oxides , Turbulence , Reynolds number , Boundary layers , Cascades (Fluid dynamics) , Chords (Trusses) , Combustion systems , Databases

Measurement and Prediction of Heat Transfer Distributions on an Aft Loaded Vane Subjected to the Influence of Catalytic and Dry Low NOx Combustor Turbulence

F. E. Ames, M. Argenziano, C. Wang

GT 2003; 331-341doi:https://doi.org/10.1115/GT2003-38509

Abstract

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Topics: Combustion chambers , Heat transfer , Nitrogen oxides , Turbulence , Pressure , Boundary layers , Reynolds number , Suction , Aerodynamics , Algebra

The Unsteady Effect of Passing Shocks on Pressure Surface Versus Suction Surface Heat Transfer in Film-Cooled Transonic Turbine Blades

A. C. Smith, A. C. Nix, T. E. Diller, W. F. Ng

GT 2003; 343-350doi:https://doi.org/10.1115/GT2003-38530

Abstract

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Topics: Heat transfer , Pressure , Shock (Mechanics) , Suction , Turbine blades , Film cooling , Coolants , Shock waves , Heat flux , Boundary layers

Three-Dimensional Conjugate Heat Transfer Simulation of an Internally-Cooled Gas Turbine Vane

William D. York, James H. Leylek

GT 2003; 351-360doi:https://doi.org/10.1115/GT2003-38551

Abstract

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Topics: Gas turbines , Heat transfer , Simulation , Metals , Temperature , Boundary-value problems , Cascades (Fluid dynamics) , Convection , Coolants , Cooling

Conjugate Heat Transfer Effects on a Realistic Film-Cooled Turbine Vane

James D. Heidmann, Alain J. Kassab, Eduardo A. Divo, Franklin Rodriguez, Erlendur Steinthorsson

GT 2003; 361-371doi:https://doi.org/10.1115/GT2003-38553

Abstract

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Topics: Heat transfer , Turbines , Heat conduction , Boundary element methods , Temperature , Thermal conductivity , Convection , Exterior walls , Fluids , Alloys

The Effects of High Mainstream Turbulence and Turbine Vane Film Cooling on the Dispersion of a Simulated Hot Streak

Sean Jenkins, Krishnakumar Varadarajam, David G. Bogard

GT 2003; 373-383doi:https://doi.org/10.1115/GT2003-38575

Abstract

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Topics: Film cooling , Turbines , Turbulence

Effects of Coolant Density Ratio on Film Cooling Performance on a Vane

J. Michael Cutbirth, David G. Bogard

GT 2003; 385-394doi:https://doi.org/10.1115/GT2003-38582

Abstract

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Topics: Coolants , Density , Film cooling

Steady Thermochromic Liquid Crystal Technique for Study of Conjugate Heat Transfer Problems

C. J. Douglass, J. S. Kapat, E. Divo, A. J. Kassab, J. Tapley, M. Durham

GT 2003; 395-402doi:https://doi.org/10.1115/GT2003-38587

Abstract

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Topics: Heat transfer , Liquid crystals , Boundary element methods , Heat flux , Air flow , Boundary-value problems , Calibration , Transients (Dynamics) , Blades , Computation

Applicability of Temperature Sensitive Paints for Measurement of Surface Temperature Distribution

Q. Liu, J. S. Kapat, C. J. Douglass, J. Qiu

GT 2003; 403-414doi:https://doi.org/10.1115/GT2003-38591

Abstract

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Topics: Paints , Temperature , Temperature distribution , Calibration , Flow (Dynamics) , Emissions , Nozzles , Painting , Polymers , Temperature measurement

Effect of Film Cooling on Low Temperature Hot Corrosion in a Coal Fired Gas Turbine

Vaidyanathan Krishnan, J. S. Kapat, Y. H. Sohn, V. H. Desai

GT 2003; 415-422doi:https://doi.org/10.1115/GT2003-38593

Abstract

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Topics: Coal , Corrosion , Film cooling , Gas turbines , Low temperature , Chain , Heat , Sulfur , Temperature , Transport phenomena

Film Cooling and Thermal Field Measurements for Staggered Rows of Rectangular-Shaped Film Cooling Holes

Dong Ho Rhee, Youn Seok Lee, Young Bong Kim, Hyung Hee Cho

GT 2003; 423-432doi:https://doi.org/10.1115/GT2003-38608

Abstract

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Topics: Film cooling , Coolants , Cooling , Shapes , Temperature , Heat transfer coefficients , Liquid crystals , Thermocouples

Effects of Rib Arrangements and Rotation Speed on Heat Transfer in a Two-Pass Duct

Hyung Hee Cho, Yun Young Kim, Kyung Min Kim, Dong Ho Rhee

GT 2003; 433-442doi:https://doi.org/10.1115/GT2003-38609

Abstract

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Topics: Ducts , Heat transfer , Rotation , Heat , Mass transfer , Flow (Dynamics) , Coriolis force , Heating , Reynolds number , Vortices

The Determination of In-Situ Film Hole Flow Rates Using a Transient Thermal Inertia Method

Ronald S. Bunker, Sarah J. Osgood, Nirm V. Nirmalan

GT 2003; 443-450doi:https://doi.org/10.1115/GT2003-38610

Abstract

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Topics: Flow (Dynamics) , Inertia (Mechanics) , Transients (Dynamics) , Discharge coefficient , Airfoils , Calibration , Coating processes , Coatings , Cooling , Heat transfer

Heat Transfer and Friction in Channels With Very High Blockage 45° Staggered Turbulators

Jeremy C. Bailey, Ronald S. Bunker

GT 2003; 451-458doi:https://doi.org/10.1115/GT2003-38611

Abstract

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Topics: Friction , Heat transfer , Flow (Dynamics) , Heat transfer coefficients , Liquid crystals , Reynolds number

Heat/Mass Transfer in 1:4 Rectangular Passages With Rotation

Peeyush Agarwal, Sumanta Acharya, D. E. Nikitopoulos

GT 2003; 459-470doi:https://doi.org/10.1115/GT2003-38615

Abstract

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Topics: Heat , Mass transfer , Rotation , Chords (Trusses) , Coolants , Reynolds number , Turbine blades

Numerical Study of Flow and Heat Transfer on a Blade Tip With Different Leakage Reduction Strategies

Sumanta Acharya, Huitao Yang, Chander Prakash, Ron Bunker

GT 2003; 471-480doi:https://doi.org/10.1115/GT2003-38617

Abstract

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Topics: Blades , Flow (Dynamics) , Heat transfer , Leakage , Pressure , Leakage flows , Suction , Heat transfer coefficients , Clearances (Engineering) , Rotors

Flow and Heat Transfer in an Internally Ribbed Duct With Rotation: An Assessment of LES and URANS

A. K. Saha, Sumanta Acharya

GT 2003; 481-495doi:https://doi.org/10.1115/GT2003-38619

Abstract

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Topics: Ducts , Flow (Dynamics) , Heat transfer , Rotation , Reynolds number , Buoyancy , Density , Engineering simulation , Simulation , Stress

Blade Tip Leakage Flow and Heat Transfer With Pressure-Side Winglet

Arun K. Saha, Sumanta Acharya, Chander Prakash, Ron Bunker

GT 2003; 497-507doi:https://doi.org/10.1115/GT2003-38620

Abstract

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Topics: Blades , Heat transfer , Leakage flows , Pressure , Heat transfer coefficients , Chords (Trusses) , Flow (Dynamics) , Suction

Effects of Duct Aspect Ratios on Heat/Mass Transfer With Discrete V-Shaped Ribs

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

GT 2003; 509-516doi:https://doi.org/10.1115/GT2003-38622

Abstract

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

Large Eddy Simulation of Film Cooling Flow From an Inclined Cylindrical Jet

Sumanta Acharya, Mayank Tyagi

GT 2003; 517-526doi:https://doi.org/10.1115/GT2003-38633

Abstract

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Topics: Film cooling , Flow (Dynamics) , Large eddy simulation , Dynamics (Mechanics) , Vortices , Wakes , Anisotropy , Flow measurement , Heat transfer , Reynolds number

Ability of a Popular Turbulence Model to Capture Curvature Effects: A Film Cooling Test Case

Satish Undapalli, James H. Leylek

GT 2003; 527-539doi:https://doi.org/10.1115/GT2003-38638

Abstract

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Topics: Film cooling , Modeling , Turbulence

Effect of Various Injection Hole Shapes on Film Cooling of Turbine Blade

S.-M. Kim, Youn J. Kim

GT 2003; 541-549doi:https://doi.org/10.1115/GT2003-38645

Abstract

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Topics: Film cooling , Shapes , Turbine blades , Coolants , Flow (Dynamics) , Cylinders , Jets , Thermography , Pressure , Reynolds number

Coupled Analysis of Cooled Gas Turbine Blades

Tadeusz Chmielniak, Włodzimierz Wro´blewski, Grzegorz Nowak, Daniel Wec˛el

GT 2003; 551-558doi:https://doi.org/10.1115/GT2003-38657

Abstract

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Topics: Blades , Gas turbines , Flow (Dynamics) , Heat transfer , Fluid dynamics , Turbulence , Algorithms , Boundary-value problems , Computation , Cooling

Effect of Showerhead Injection on Superposition of Multi-Row Pressure Side Film Cooling With Fan Shaped Holes

Martin Schneider, Sacha Parneix, Jens von Wolfersdorf

GT 2003; 559-568doi:https://doi.org/10.1115/GT2003-38693

Abstract

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Topics: Film cooling , Pressure , Boundary layers , Coolants , Carbon dioxide , Cascades (Fluid dynamics) , Cooling , Density , Engines , Flow (Dynamics)

Flow Effects on the Bend Region Heat Transfer Distribution of 2-Pass Internal Coolant Passages of Gas Turbine Airfoils: Influence of Film Cooling Extraction

D. Chanteloup, A. Bo¨lcs

GT 2003; 569-580doi:https://doi.org/10.1115/GT2003-38702

Abstract

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Topics: Airfoils , Coolants , Film cooling , Flow (Dynamics) , Gas turbines , Heat transfer , Ducts , Exterior walls , Flow measurement , Heat transfer coefficients

An Investigation of the Heat Transfer for Full Coverage Film Cooling

Grady B. Kelly, David G. Bogard

GT 2003; 581-590doi:https://doi.org/10.1115/GT2003-38716

Abstract

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Topics: Film cooling , Heat transfer , Heat transfer coefficients , Turbulence

Heat Transfer Measurements and Predictions for the Vane and Blade of a Rotating High-Pressure Turbine Stage

Charles W. Haldeman, Michael G. Dunn

GT 2003; 591-600doi:https://doi.org/10.1115/GT2003-38726

Abstract

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Topics: Blades , Heat transfer , High pressure (Physics) , Turbines , Aerodynamics , Boundary layers , Design

Experimental Surface Heat Transfer and Flow Structure in a Curved Channel With Laminar, Transitional, and Turbulent Flows

P. M. Ligrani, C. R. Hedlund

GT 2003; 601-610doi:https://doi.org/10.1115/GT2003-38734

Abstract

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Topics: Flow (Dynamics) , Heat transfer , Turbulence , Vortices , Vortex flow , Flow visualization , Fluctuations (Physics) , Shear (Mechanics) , Spectra (Spectroscopy) , Vorticity

The Effect of Real Turbine Roughness With Pressure Gradient on Heat Transfer

Jeffrey P. Bons, Stephen T. McClain

GT 2003; 611-622doi:https://doi.org/10.1115/GT2003-38738

Abstract

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Topics: Heat transfer , Pressure gradient , Surface roughness , Turbines , Boundary layers , Accounting , Boundary layer turbulence , Erosion , Flow (Dynamics) , Fuels

Measurements and Predictions of Heat Transfer on Rotor Blades in a Transonic Turbine Cascade

Paul W. Giel, Robert J. Boyle, Ronald S. Bunker

GT 2003; 623-638doi:https://doi.org/10.1115/GT2003-38839

Abstract

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Topics: Blades , Cascades (Fluid dynamics) , Heat transfer , Rotors , Turbines , Design , Flow (Dynamics) , Reynolds number , Turbulence , Airfoils

Numerical Predictions of Film Cooled NGV Blades

P. Adami, F. Martelli, K. S. Chana, F. Montomoli

GT 2003; 639-649doi:https://doi.org/10.1115/GT2003-38861

Abstract

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Topics: Blades , Nozzle guide vanes , Film cooling , Airfoils , Turbines , Computational fluid dynamics , Coolants , Engines , Flow (Dynamics) , Gas turbines

Investigation of Film Cooling Effectiveness of Full-Coverage Inclined Multihole Walls With Different Hole Arrangements

Yuzhen Lin, Bo Song, Bin Li, Gaoen Liu, Zhiyong Wu

GT 2003; 651-660doi:https://doi.org/10.1115/GT2003-38881

Abstract

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Topics: Film cooling , Combustion chambers , Computer simulation , Coolants , Flow (Dynamics) , Plates (structures) , Design , Heat , Jets , Temperature distribution

Heat Transfer in Rotating Rectangular Channels (AR = 4:1) With V-Shaped and Angled Rib Turbulators With and Without Gaps

Eungsuk Lee, Lesley M. Wright, Je-Chin Han

GT 2003; 661-670doi:https://doi.org/10.1115/GT2003-38900

Abstract

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Topics: Heat transfer

Rotation Effect on Jet Impingement Heat Transfer in Smooth Rectangular Channels With Four Heated Walls and Film Coolant Extraction

James A. Parsons, Je-Chin Han, C. Pang Lee

GT 2003; 671-680doi:https://doi.org/10.1115/GT2003-38905

Abstract

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Topics: Coolants , Heat transfer , Rotation

Heat Transfer Coefficients on the Squealer Tip and Near Tip Regions of a Gas Turbine Blade With Single or Double Squealer

Jae Su Kwak, Jaeyong Ahn, Je-Chin Han, C. Pang Lee, Robert Boyle, Raymond Gaugler, Ronald S. Bunker

GT 2003; 681-690doi:https://doi.org/10.1115/GT2003-38907

Abstract

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Topics: Blades , Gas turbines , Heat transfer coefficients , Pressure , Suction , Cascades (Fluid dynamics) , Geometry , Chords (Trusses) , Heat transfer , Leakage flows

Turbine Tip and Shroud Heat Transfer and Loading: Part B — Comparisons Between Prediction and Experiment Including Unsteady Effects

M. D. Polanka, J. P. Clark, A. L. White, M. Meininger, T. J. Praisner

GT 2003; 691-702doi:https://doi.org/10.1115/GT2003-38916

Abstract

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Topics: Heat transfer , Turbines , Blades , Flow (Dynamics) , Physics , Air Force , Airfoils , Annulus , Collaboration , Heat

Comparison of Trip-Strip/Impingement/Dimple Cooling Concepts at High Reynolds Numbers

Yong W. Kim, Leonel Arellano, Mark Vardakas, Hee-Koo Moon, Kenneth O. Smith

GT 2003; 703-709doi:https://doi.org/10.1115/GT2003-38935

Abstract

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Topics: Cooling , Reynolds number , Strips , Combustion chambers , Flow (Dynamics) , Heat transfer , Durability , Emissions , Engines , Film cooling

Optimizing the Vane-Endwall Junction to Reduce Adiabatic Wall Temperatures in a Turbine Vane Passage

Andrew T. Lethander, Karen A. Thole, Gary Zess, Joel Wagner

GT 2003; 711-721doi:https://doi.org/10.1115/GT2003-38939

Abstract

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Topics: Junctions , Turbines , Wall temperature , Flow (Dynamics) , Gas turbines , Computational fluid dynamics , Design , Airfoils , Computer software , Engines

Heat Transfer: Transition

A Receptivity Based Transition Model

Mark W. Johnson

GT 2003; 723-728doi:https://doi.org/10.1115/GT2003-38073

Abstract

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Topics: Boundary layers , Flow (Dynamics) , Pressure gradient , Turbulence , Vortices

Measurements and Prediction of Free-Stream Turbulence and Pressure-Gradient Effects on Attached-Flow Boundary-Layer Transition

S. K. Roberts, M. I. Yaras

GT 2003; 729-743doi:https://doi.org/10.1115/GT2003-38261

Abstract

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Topics: Boundary layers , Flow (Dynamics) , Pressure gradient , Turbulence , Reynolds number , Flat plates , Pressure , Suction , Turbine blades , Wire

Effects of Periodic Unsteadiness, Free-Stream Turbulence, and Flow Reynolds Number on Separation-Bubble Transition

S. K. Roberts, M. I. Yaras

GT 2003; 745-759doi:https://doi.org/10.1115/GT2003-38262

Abstract

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Topics: Bubbles , Flow (Dynamics) , Reynolds number , Separation (Technology) , Turbulence , Flat plates , Fluctuations (Physics) , Pressure , Suction , Turbine blades

Studies on Effects of Periodic Wake Passing Upon a Blade Leading Edge Separation Bubble: Experimental Investigation Using a Simple Leading Edge Model

K. Funazaki, K. Yamada, Y. Kato

GT 2003; 761-769doi:https://doi.org/10.1115/GT2003-38281

Abstract

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Topics: Blades , Bubbles , Separation (Technology) , Wakes , Flow (Dynamics) , Turbulence , Boundary layers , Compressors , Flat plates , Generators

Transition Modelling With the SST Turbulence Model and an Intermittency Transport Equation

Koen Lodefier, Bart Merci, Chris De Langhe, Erik Dick

GT 2003; 771-777doi:https://doi.org/10.1115/GT2003-38282

Abstract

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Topics: Modeling , Turbulence , Flat plates , Shear stress , Viscosity

The Transition Mechanism of Highly-Loaded LP Turbine Blades

R. D. Stieger, H. P. Hodson

GT 2003; 779-788doi:https://doi.org/10.1115/GT2003-38304

Abstract

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Topics: Turbine blades , Shear (Mechanics) , Wakes , Boundary layers , Separation (Technology) , Bubbles , Pressure , Suction

On the Three-Dimensional Structure of Turbulent Spots

T. P. Chong, S. Zhong

GT 2003; 789-797doi:https://doi.org/10.1115/GT2003-38435

Abstract

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Topics: Turbulence , Pressure gradient , Boundary layers , Flat plates , Heat transfer , Probes , Skin friction (Fluid dynamics) , Turbine blades , Wire

Simulation of Transitional Boundary-Layer Development on a Highly-Loaded Turbine Cascade With Advanced RANS Modeling

D. Keith Walters, James H. Leylek

GT 2003; 799-810doi:https://doi.org/10.1115/GT2003-38664

Abstract

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Topics: Boundary layers , Cascades (Fluid dynamics) , Modeling , Reynolds-averaged Navier–Stokes equations , Simulation , Turbines , Turbulence

Intermittency Transport Modeling of Separated Flow Transition

J. Vicedo, S. Vilmin, W. N. Dawes, A. M. Savill

GT 2003; 811-819doi:https://doi.org/10.1115/GT2003-38719

Abstract

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Topics: Flow (Dynamics) , Modeling , Separation (Technology) , Bubbles , Turbulence , Blades , Boundary layers , Flat plates , Fluids , Momentum

Separated Flow Transition in a Low Pressure Turbine Cascade: Mean Flow and Turbulence Spectra

Ralph J. Volino, Christopher G. Murawski

GT 2003; 821-832doi:https://doi.org/10.1115/GT2003-38727

Abstract

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Topics: Cascades (Fluid dynamics) , Flow (Dynamics) , Pressure , Spectra (Spectroscopy) , Turbines , Turbulence , Airfoils , Boundary layers , Suction , Separation (Technology)

Passive Flow Control on Low-Pressure Turbine Airfoils

Ralph J. Volino

GT 2003; 833-844doi:https://doi.org/10.1115/GT2003-38728

Abstract

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Topics: Airfoils , Flow control , Pressure , Turbines , Boundary layers , Turbulence , Separation (Technology) , Suction , Bubbles , Reynolds number

Separation Control on Low-Pressure Turbine Airfoils Using Synthetic Vortex Generator Jets

Ralph J. Volino

GT 2003; 845-859doi:https://doi.org/10.1115/GT2003-38729

Abstract

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Topics: Airfoils , Generators , Jets , Pressure , Separation (Technology) , Turbines , Vortices , Boundary layers , Suction , Turbulence

Modeling Laminar-to-Turbulent Transition in a Low-Pressure Turbine Flow Which Is Unsteady Due to Passing Wakes: Part I — Transition Onset

Nan Jiang, Terrence W. Simon

GT 2003; 861-870doi:https://doi.org/10.1115/GT2003-38787

Abstract

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Topics: Flow (Dynamics) , Modeling , Pressure , Turbines , Turbulence , Wakes , Boundary layers , Cycles , Suction , Turbine blades

Effect of Elevated Free-Stream Turbulence on Transitional Heat Transfer Over Dual-Scaled Rough Surfaces

Ting Wang, Matthew C. Rice

GT 2003; 871-882doi:https://doi.org/10.1115/GT2003-38835

Abstract

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Topics: Heat transfer , Surface roughness , Turbulence , Flow (Dynamics) , Boundary layers , Geometry , Vortex shedding , Airfoils , Cylinders , Flat plates

Modeling Laminar-to-Turbulent Transition in a Low-Pressure Turbine Flow Which Is Unsteady Due to Passing Wakes: Part II — Transition Path

Nan Jiang, Terrence W. Simon

GT 2003; 883-888doi:https://doi.org/10.1115/GT2003-38963

Abstract

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Topics: Flow (Dynamics) , Modeling , Pressure , Turbines , Turbulence , Wakes , Algebra , Gas turbines

Heat Transfer: Internal Air Systems and Seals

Computation of Heat Transfer for Two Discs Rotating at Different Speeds

Muhsin Kilic, J. Michael Owen

GT 2003; 889-897doi:https://doi.org/10.1115/GT2003-38014

Abstract

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Topics: Computation , Disks , Heat transfer , Rotating disks

Procedure for Determining 1-D Flow Distributions in Arbitrarily Connected Passages Without the Influence of Pumping

Peter L. Meitner

GT 2003; 899-903doi:https://doi.org/10.1115/GT2003-38061

Abstract

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Topics: Flow (Dynamics) , Finite element analysis , Momentum

CFD Prediction of Secondary Airflow Through Holes in Rotating Shafts

Colin Young, Guy D. Snowsill

GT 2003; 905-912doi:https://doi.org/10.1115/GT2003-38077

Abstract

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Topics: Air flow , Computational fluid dynamics , Orifices

Measurement and Analysis of Flow in a Pre-Swirled Cooling Air Delivery System

J. W. Chew, N. J. Hills, S. Khalatov, T. Scanlon, A. B. Turner

GT 2003; 913-920doi:https://doi.org/10.1115/GT2003-38084

Abstract

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Topics: Cooling , Flow (Dynamics) , Nozzles , Temperature , Disks , Aircraft engines , Pressure , Temperature measurement

Computer Simulation and Optimization of Heat Recovery Steam Generator (HRSG)

Rajeev Kumar, Onkar Singh

GT 2003; 921-934doi:https://doi.org/10.1115/GT2003-38095

Abstract

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Topics: Computer simulation , Heat recovery steam generators , Optimization , Pressure , Combined cycle power stations , Computers , Steam , Cycles , Design , Gases

Heat Transfer Measurements Using Liquid Crystal in a Pre-Swirl Rotating-Disc System

Gary D. Lock, Youyou Yan, Paul J. Newton, Michael Wilson, J. Michael Owen

GT 2003; 935-944doi:https://doi.org/10.1115/GT2003-38123

Abstract

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Topics: Heat transfer , Liquid crystals , Rotating disks

Fluid Flow and Heat Transfer Features at a Cross-Flow of Dimpled Tubes in a Confined Space

G. V. Kovalenko, A. A. Khalatov

GT 2003; 945-954doi:https://doi.org/10.1115/GT2003-38155

Abstract

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Topics: Cross-flow , Flow (Dynamics) , Fluid dynamics , Heat transfer

Cooling Air Temperature Reduction in a Direct Transfer Preswirl System

T. Geis, M. Dittmann, K. Dullenkopf

GT 2003; 955-964doi:https://doi.org/10.1115/GT2003-38231

Abstract

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Topics: Cooling , Temperature , Rotors , Stators , Disks , Reynolds number , Air flow , Cavities , Drag (Fluid dynamics) , Flow (Dynamics)

Development of a 2-D CFD Approach for Computing 3-D Honeycomb Labyrinth Leakage

Dong-Chun Choi, David L. Rhode

GT 2003; 965-975doi:https://doi.org/10.1115/GT2003-38238

Abstract

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Topics: Computational fluid dynamics , Honeycomb structures , Leakage

An Experimental and Theoretical Study of Brush Seal and Shaft Thermal Interaction

Andrew K. Owen, Terry V. Jones, S. M. Guo, Simon Hogg

GT 2003; 977-984doi:https://doi.org/10.1115/GT2003-38276

Abstract

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Topics: Air flow , Design , Energy generation , Finite element analysis , Flow (Dynamics) , Heat , Heat transfer , Pressure , Rotors , Steam turbines

Investigations of Dust Separation in the Internal Cooling Air System of Gas Turbines

O. Schneider, H. J. Dohmen, F.-K. Benra, D. Brillert

GT 2003; 985-992doi:https://doi.org/10.1115/GT2003-38293

Abstract

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Topics: Cooling , Dust , Gas turbines , Separation (Technology) , Particulate matter , Flow (Dynamics) , Turbine blades , Blades , Coolants , Film cooling

Direct-Transfer Preswirl System: A One Dimensional Modular Characterization of the Flow

M. Dittmann, K. Dullenkopf, S. Wittig

GT 2003; 993-1000doi:https://doi.org/10.1115/GT2003-38312

Abstract

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Topics: Flow (Dynamics) , Rotors , Cooling , Discharge coefficient , Disks , Nozzles , Blades , Deflection , Gas turbines , High pressure (Physics)

Discharge Coefficients of Rotating Short Orifices With Radiused and Chamfered Inlets

M. Dittmann, K. Dullenkopf, S. Wittig

GT 2003; 1001-1009doi:https://doi.org/10.1115/GT2003-38314

Abstract

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Topics: Discharge coefficient , Orifices , Cooling , Geometry , Compressors , Design , Engines , Flow (Dynamics) , Gas turbines , Pressure

Interaction of Rim Seal and Annulus Flows in an Axial Flow Turbine

C. Cao, J. W. Chew, P. R. Millington, S. I. Hogg

GT 2003; 1011-1019doi:https://doi.org/10.1115/GT2003-38368

Abstract

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Topics: Annulus , Axial flow , Flow (Dynamics) , Turbines , Computational fluid dynamics , Cavities , Clearances (Engineering) , Diaphragms (Mechanical devices) , Diaphragms (Structural) , Pressure measurement

Analysis of Tangential-Against-Rotation Injection Lomakin Bearings

Mihai Arghir, Mathieu He´le`ne, Jean Frene

GT 2003; 1021-1032doi:https://doi.org/10.1115/GT2003-38411

Abstract

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Topics: Bearings , Rotation , Flow (Dynamics) , Thin films , Algorithms , Inertia (Mechanics) , Orifices , Fluids , Hydrostatics , Reynolds number

Influence of Sealing Air Mass Flow on the Velocity Distribution In and Inside the Rim Seal of the Upstream Cavity of a 1.5-Stage Turbine

Dieter E. Bohn, Achim Decker, Hongwei Ma, Michael Wolff

GT 2003; 1033-1040doi:https://doi.org/10.1115/GT2003-38459

Abstract

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Topics: Cavities , Flow (Dynamics) , Sealing (Process) , Turbines , Blades , Rotors , Guide vanes , Laser Doppler anemometry , Resolution (Optics) , Stators

Improved Formulation to Determine Minimum Sealing Flow – C_{w, min} – for Different Sealing Configurations

Dieter Bohn, Michael Wolff

GT 2003; 1041-1049doi:https://doi.org/10.1115/GT2003-38465

Abstract

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Topics: Flow (Dynamics) , Sealing (Process) , Approximation , Rotors , Stators , Turbines , Disks , Cooling , Geometry , Air flow

Application of Conjugate CFD to the Internal Cooling Air Flow System of Gas Turbines

D. Brillert, H. J. Dohmen, F.-K. Benra, O. Schneider, A. V. Mirzamoghadam

GT 2003; 1051-1060doi:https://doi.org/10.1115/GT2003-38471

Abstract

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Topics: Air flow , Computational fluid dynamics , Cooling , Gas turbines , Temperature , Heat transfer , Cavities , Flow (Dynamics) , Jets , Temperature effects

Analysis of Brush Seal Bristle Stresses With Pressure-Friction Coupling

Mahmut F. Aksit

GT 2003; 1061-1069doi:https://doi.org/10.1115/GT2003-38718

Abstract

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Topics: Friction , Pressure , Stress , Creep , Design , Engineering simulation , Euler-Bernoulli beam theory , Finite element analysis , High temperature , Industrial gases

A Detailed Experimental Investigation of a Perforated Heat Transfer Surface Applied to Gas Turbine Recuperators

Juan C. Adams, Peter T. Ireland, Martin Cerza, James Oswald

GT 2003; 1071-1080doi:https://doi.org/10.1115/GT2003-38740

Abstract

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Topics: Gas turbines , Heat transfer

Performance of a WC Coated Mechanical Seal Prototype With Integral Micro Heat Exchanger

Gina M. Johns, L. Scott Stephens, Matthew A. Hayden

GT 2003; 1081-1089doi:https://doi.org/10.1115/GT2003-38856

Abstract

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Topics: Engineering prototypes , Heat exchangers , Failure , Temperature , Coatings , Cooling , Design , Friction , Nickel , Testing

Investigation of Brush Seal Flow Characteristics Using Bulk Porous Medium Approach

Yahya Dogu

GT 2003; 1091-1101doi:https://doi.org/10.1115/GT2003-38970

Abstract

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Topics: Flow (Dynamics) , Porous materials , Pressure , Permeability , Anisotropy , Computational fluid dynamics , Flutter (Aerodynamics) , Leakage , Rotors

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