Topics: Cavities , Flow (Dynamics) , Heat transfer , Symmetry (Physics) , Turbulence , Engines , Exhaust systems , Gas turbines , Guide vanes , Junctions

Influence of Scaling Parameters and Gas Properties on Overall Effectiveness on a Leading Edge Showerhead

Connor J. Wiese, Carol E. Bryant, James L. Rutledge, Marc D. Polanka

GT 2018; V05BT13A003https://doi.org/10.1115/GT2018-75332

Abstract

View Articletitled, Influence of Scaling Parameters and Gas Properties on Overall Effectiveness on a Leading Edge Showerhead

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Topics: Carbon dioxide , Coolants , Cooling , Density , Engines , Flow (Dynamics) , Metalwork , Momentum , Physics , Reynolds number

Experimental Evaluations of the Relative Contributions to Overall Effectiveness in Turbine Blade Leading Edge Cooling

Carol E. Bryant, Connor J. Wiese, James L. Rutledge, Marc D. Polanka

GT 2018; V05BT13A004https://doi.org/10.1115/GT2018-75334

Abstract

View Articletitled, Experimental Evaluations of the Relative Contributions to Overall Effectiveness in Turbine Blade Leading Edge Cooling

PDF

Topics: Cooling , Turbine blades , Film cooling , Coolants , Impingement cooling , Heat transfer coefficients , Convection , Turbine components , Computational fluid dynamics , Design

Experimental Investigation of Heat Transfer in Cavities of Steam Turbine Casings Under Generic Test Rig Conditions

David Spura, Uwe Gampe, Gunter Eschmann, Wieland Uffrecht

GT 2018; V05BT13A005https://doi.org/10.1115/GT2018-75463

Abstract

View Articletitled, Experimental Investigation of Heat Transfer in Cavities of Steam Turbine Casings Under Generic Test Rig Conditions

PDF

Topics: Cavities , Heat transfer , Steam turbines , Dimensions , Flow (Dynamics) , Reynolds number , Shapes , Air flow , Corners (Structural elements) , Forced convection

Unsteady Effects on the Experimental Determination of Overall Effectiveness

James L. Rutledge, William P. Baker

GT 2018; V05BT13A006https://doi.org/10.1115/GT2018-75846

Abstract

View Articletitled, Unsteady Effects on the Experimental Determination of Overall Effectiveness

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Topics: Boundary-value problems , Computer simulation , Convection , Density , Diffusion (Physics) , Engineering simulation , Engines , Film cooling , Flow (Dynamics) , Heat

Development of a Steady-State Experimental Facility for the Analysis of Double-Wall Effusion Cooling Geometries

Alexander V. Murray, Peter T. Ireland, Eduardo Romero

GT 2018; V05BT13A007https://doi.org/10.1115/GT2018-75924

Abstract

View Articletitled, Development of a Steady-State Experimental Facility for the Analysis of Double-Wall Effusion Cooling Geometries

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Topics: Cooling , Steady state , Coolants , Computational fluid dynamics , Cooling systems , Engineering simulation , Engines , Film cooling , Flow (Dynamics) , Heat conduction

Detailed Flow Analyses Through Crossover Holes Between Two Adjacent Rib-Roughened Cooling Channels and the Resulting Impingement Heat Transfer

Fei Xue, Mohammad E. Taslim

GT 2018; V05BT13A008https://doi.org/10.1115/GT2018-76132

Abstract

View Articletitled, Detailed Flow Analyses Through Crossover Holes Between Two Adjacent Rib-Roughened Cooling Channels and the Resulting Impingement Heat Transfer

PDF

Topics: Cooling , Flow (Dynamics) , Heat transfer , Jets , Heat transfer coefficients , Cavities , Reynolds number , Airfoils , Pressure drop , Axial flow

Heat Transfer Coefficient Characterization for Large Aspect-Ratio Thin Films in Film-Riding Seals

James A. Tallman, Rahul A. Bidkar

GT 2018; V05BT13A009https://doi.org/10.1115/GT2018-76168

Abstract

View Articletitled, Heat Transfer Coefficient Characterization for Large Aspect-Ratio Thin Films in Film-Riding Seals

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Topics: Heat transfer coefficients , Thin films , Bearings , Rotors , Uncertainty , Computational fluid dynamics , Deformation , Fluids , Ducts , Flow (Dynamics)

Detailed Studies on the Flow Field and Heat Transfer Characteristics Inside a Realistic Serpentine Cooling Channel With a S-Shaped Inlet

Ken-ichi Funazaki, Hikaru Odagiri, Takeshi Horiuchi, Masahide Kazari

GT 2018; V05BT13A010https://doi.org/10.1115/GT2018-76225

Abstract

View Articletitled, Detailed Studies on the Flow Field and Heat Transfer Characteristics Inside a Realistic Serpentine Cooling Channel With a S-Shaped Inlet

PDF

Topics: Cooling , Flow (Dynamics) , Heat transfer , Turbine blades , Gas turbines , Flow visualization , Blades , Centrifugal force , Computer simulation , Disks

Measurement Uncertainty in Liquid Crystal Thermography Applied to Internal Cooling Research: Two Practical Examples

Ignacio Mayo, Marco Virgilio, Bogdan C. Cernat, Tony Arts

GT 2018; V05BT13A011https://doi.org/10.1115/GT2018-76361

Abstract

View Articletitled, Measurement Uncertainty in Liquid Crystal Thermography Applied to Internal Cooling Research: Two Practical Examples

PDF

Topics: Cooling , Liquid crystals , Measurement uncertainty , Thermography , Uncertainty , Reynolds number , Temperature , Fluids , Temperature measurement , Cavities

Experimental and Numerical Investigation of Optimized Blade Tip Shapes: Part I — Turbine Rainbow Rotor Testing and CFD Methods

Bogdan Cernat, Marek Pátý, Cis De Maesschalck, Sergio Lavagnoli

GT 2018; V05BT13A012https://doi.org/10.1115/GT2018-76564

Abstract

View Articletitled, Experimental and Numerical Investigation of Optimized Blade Tip Shapes: Part I — Turbine Rainbow Rotor Testing and CFD Methods

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Topics: Blades , Computational fluid dynamics , Rotors , Shapes , Testing , Turbines , Flow (Dynamics) , Clearances (Engineering) , Design , Engines

Experimental and Numerical Investigation of Optimized Blade Tip Shapes: Part II — Tip Flow Analysis and Loss Mechanisms

Marek Pátý, Bogdan Cernat, Cis De Maesschalck, Sergio Lavagnoli

GT 2018; V05BT13A013https://doi.org/10.1115/GT2018-76567

Abstract

View Articletitled, Experimental and Numerical Investigation of Optimized Blade Tip Shapes: Part II — Tip Flow Analysis and Loss Mechanisms

PDF

Topics: Blades , Flow (Dynamics) , Shapes , Turbines , Geometry , Rotors , Aerodynamics , Heat transfer , Leakage flows , Boundary-value problems

A Novel Experimental Technique for Investigating Natural Convective Heat Transfer in a Gas Turbine Annulus

Daniel D. Fahy, Peter T. Ireland, Leo V. Lewis, Emile Raya

GT 2018; V05BT13A014https://doi.org/10.1115/GT2018-76685

Abstract

View Articletitled, A Novel Experimental Technique for Investigating Natural Convective Heat Transfer in a Gas Turbine Annulus

PDF

Topics: Annulus , Convection , Gas turbines , Rotors , Design , Cylinders , Engines , Temperature distribution , Compressors , Computational fluid dynamics

Three Dimensional Velocity and Temperature Field Measurements of Internal and External Turbine Blade Features Using Magnetic Resonance Thermometry

Michael J. Benson, Bret P. Van Poppel, Christopher J. Elkins, Mark Owkes

GT 2018; V05BT13A015https://doi.org/10.1115/GT2018-76874

Abstract

View Articletitled, Three Dimensional Velocity and Temperature Field Measurements of Internal and External Turbine Blade Features Using Magnetic Resonance Thermometry

PDF

Topics: Magnetic resonance , Temperature , Temperature measurement , Turbine blades , Airfoils , Cooling , Flow (Dynamics) , Computational fluid dynamics , Magnetic resonance imaging , Reynolds number

Gas Temperature Measurement in Engine Conditions Using Uniform Crystal Temperature Sensors (UCTS)

Jason DeVoe, Anastasia Thomas, Reagan DeVoe, Edward Ginzbursky

GT 2018; V05BT13A016https://doi.org/10.1115/GT2018-76890

Abstract

View Articletitled, Gas Temperature Measurement in Engine Conditions Using Uniform Crystal Temperature Sensors (UCTS)

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Topics: Crystals , Engines , Temperature measurement , Temperature sensors , Algorithms , Boundary-value problems , Engineers , Errors , Finite element analysis , Gas flow

Annular Heat Transfer Enhancement Using Jet Impingement

Andres Curbelo, Alex Hanhold, Cesar Lopez, Jayanta S. Kapat, Philippe T. Lott, Uwe W. Ruedel

GT 2018; V05BT13A017https://doi.org/10.1115/GT2018-76898

Abstract

View Articletitled, Annular Heat Transfer Enhancement Using Jet Impingement

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Topics: Heat transfer , Annulus , Impingement cooling , Computer simulation , Electronic equipment , Fins , Flow (Dynamics) , Nuclear reactor cooling , Paints , Pressure drop

Double Wall Cooling of a Full Coverage Effusion Plate With Main Flow Pressure Gradient, Including Internal Impingement Array Cooling

Sneha Reddy Vanga, Zhong Ren, Austin J. Click, Phil Ligrani, Federico Liberatore, Rajeshriben Patel, Ram Srinivasan, Yin-Hsiang Ho

GT 2018; V05BT13A018https://doi.org/10.1115/GT2018-77036

Abstract

View Articletitled, Double Wall Cooling of a Full Coverage Effusion Plate With Main Flow Pressure Gradient, Including Internal Impingement Array Cooling

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Topics: Cooling , Flow (Dynamics) , Pressure gradient , Coolants , Reynolds number , Cross-flow , Thermography , Boundary layers , Film cooling , Heat transfer coefficients

Internal Air Systems and Seals (With Turbomachinery)

Telemetric Heat Transfer Coefficient Measurements in an Open Rotor-Stator System Air Gap at up to 8500 rpm

Benjamin Heinschke, Wieland Uffrecht, Stefan Odenbach, Volker Caspary

GT 2018; V05BT15A001https://doi.org/10.1115/GT2018-75060

Abstract

View Articletitled, Telemetric Heat Transfer Coefficient Measurements in an Open Rotor-Stator System Air Gap at up to 8500 rpm

PDF

Topics: Heat transfer coefficients , Rotors , Stators , Heat transfer , Reynolds number , Sensors , Temperature , Calibration , Flat plates , Rotating disks

Influence of Leakage Flows on Hot Gas Ingress

Marios Patinios, Irvin L. Ong, James A. Scobie, Gary D. Lock, Carl M. Sangan

GT 2018; V05BT15A002https://doi.org/10.1115/GT2018-75071

Abstract

View Articletitled, Influence of Leakage Flows on Hot Gas Ingress

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Topics: Leakage flows , Flow (Dynamics) , Stators , Turbines , Wheels , Disks , Pressure , Rotors , Vortices , Carbon dioxide

Large-Eddy Simulation of Buoyancy-Induced Flow in a Sealed Rotating Cavity

Diogo B. Pitz, John W. Chew, Olaf Marxen

GT 2018; V05BT15A003https://doi.org/10.1115/GT2018-75111

Abstract

View Articletitled, Large-Eddy Simulation of Buoyancy-Induced Flow in a Sealed Rotating Cavity

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Topics: Buoyancy , Cavities , Flow (Dynamics) , Large eddy simulation , Boundary layers , Disks , Temperature , Convection , Fluctuations (Physics) , Gas turbines

Assessment of Wall-Modeled LES for Pre-Swirl Cooling Systems

Mazhar E. Kusbeci, John W. Chew

GT 2018; V05BT15A004https://doi.org/10.1115/GT2018-75112

Abstract

View Articletitled, Assessment of Wall-Modeled LES for Pre-Swirl Cooling Systems

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Topics: Computational fluid dynamics , Cooling , Cooling systems , Flow (Dynamics) , Gas turbines , Large eddy simulation , Modeling , Reynolds-averaged Navier–Stokes equations , Turbulence , Uncertainty

Advanced Numerical Simulation of Turbine Rim Seal Flows and Consideration for RANS Turbulence Modelling

Feng Gao, Nicolas Poujol, John W. Chew, Paul F. Beard

GT 2018; V05BT15A005https://doi.org/10.1115/GT2018-75116

Abstract

View Articletitled, Advanced Numerical Simulation of Turbine Rim Seal Flows and Consideration for RANS Turbulence Modelling

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Topics: Computer simulation , Flow (Dynamics) , Modeling , Reynolds-averaged Navier–Stokes equations , Turbines , Turbulence , Computational fluid dynamics , Cavities , Pressure , Unsteady flow

Comparative Study of a Felt Abradable Seal

Dan Hasnedl, Premysl Epikaridis

GT 2018; V05BT15A006https://doi.org/10.1115/GT2018-75139

Abstract

View Articletitled, Comparative Study of a Felt Abradable Seal

PDF

Topics: Cycles , Leakage , Steam , Steam turbines , Testing , Turbomachinery

Effects of Mushroom-Shaped Tooth Wear on the Leakage Performance and Rotordynamic Coefficients of Labyrinth Seals

Yaoxing Chen, Zhigang Li, Xin Yan, Jun Li

GT 2018; V05BT15A007https://doi.org/10.1115/GT2018-75147

Abstract

View Articletitled, Effects of Mushroom-Shaped Tooth Wear on the Leakage Performance and Rotordynamic Coefficients of Labyrinth Seals

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Topics: Leakage , Wear , Rotors , Clearances (Engineering) , Damage , Stability , Cavities , Damping , Leakage flows , Transients (Dynamics)

Numerical Investigation on the Leakage and Rotordynamic Characteristics for Three Types of Annular Gas Seals in Wet Gas Conditions

Zhigang Li, Zhi Fang, Jun Li

GT 2018; V05BT15A008https://doi.org/10.1115/GT2018-75150

Abstract

View Articletitled, Numerical Investigation on the Leakage and Rotordynamic Characteristics for Three Types of Annular Gas Seals in Wet Gas Conditions

PDF

Topics: Leakage , Leakage flows , Compressors , Dampers , Damping , Rotors , Transients (Dynamics) , Computational fluid dynamics , Pressure , Sealing (Process)

Rotating Annulus Component Performance Characterisation Based on CFD Analyses

Youming Yuan, David Hunt

GT 2018; V05BT15A009https://doi.org/10.1115/GT2018-75158

Abstract

View Articletitled, Rotating Annulus Component Performance Characterisation Based on CFD Analyses

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Topics: Annulus , Computational fluid dynamics , Performance characterization , Pressure , Torque , Aircraft engines , Exterior walls , Flow (Dynamics) , Gas turbines , Heat transfer

Conjugate Heat Transfer Analysis on Generic Rim Seal Configurations in Rotor-Stator System

Xingyun Jia, Liguo Wang, Qun Zheng, Hai Zhang, Yuting Jiang

GT 2018; V05BT15A010https://doi.org/10.1115/GT2018-75228

Abstract

View Articletitled, Conjugate Heat Transfer Analysis on Generic Rim Seal Configurations in Rotor-Stator System

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Topics: Heat transfer , Rotors , Stators , Clearances (Engineering) , Disks , Flow (Dynamics) , Temperature , Cooling , Temperature distribution

Modeling of the Cavity Response to Rapid Transient Considering the Effect of Heat Transfer

Shuiting Ding, Hang Yu, Tian Qiu, Chuankai Liu

GT 2018; V05BT15A011https://doi.org/10.1115/GT2018-75264

Abstract

View Articletitled, Modeling of the Cavity Response to Rapid Transient Considering the Effect of Heat Transfer

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Topics: Cavities , Heat transfer , Modeling , Transients (Dynamics) , Temperature , Pressure , Boundary-value problems , Engines , Errors , Cooling

Unsteady Computation of Ingress Through Turbine Rim Seals

Joshua T. M. Horwood, Fabian P. Hualca, Mike Wilson, James A. Scobie, Carl M. Sangan, Gary D. Lock

GT 2018; V05BT15A012https://doi.org/10.1115/GT2018-75321

Abstract

View Articletitled, Unsteady Computation of Ingress Through Turbine Rim Seals

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Topics: Computation , Turbines , Flow (Dynamics) , Disks , Wheels , Annulus , Stators , Blades , Carbon dioxide , Computer simulation

Influence of Hole-Pattern Stator on Leakage Performance of Labyrinth Seals

Xin Yan, Xinbo Dai, Kang Zhang, Jun Li, Kun He

GT 2018; V05BT15A013https://doi.org/10.1115/GT2018-75349

Abstract

View Articletitled, Influence of Hole-Pattern Stator on Leakage Performance of Labyrinth Seals

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Topics: Leakage , Stators , Honeycomb structures , Pressure , Clearances (Engineering) , Computational fluid dynamics , Flow (Dynamics) , Rotors , Stability , Turbomachinery

Optimization of the Straight-Through Labyrinth Seal With a Smooth Land

Włodzimierz Wróblewski, Daniel Frączek, Artur Szymański, Krzysztof Bochon, Sławomir Dykas, Krzysztof Marugi

GT 2018; V05BT15A014https://doi.org/10.1115/GT2018-75387

Abstract

View Articletitled, Optimization of the Straight-Through Labyrinth Seal With a Smooth Land

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Topics: Optimization , Computational fluid dynamics , Fins , Leakage , Discharge coefficient , Flow (Dynamics) , Pressure , Turbulence , Algorithms , Computer software

CFD Leakage Predictions of Labyrinth Seals Having Straight and Inclined Notched Teeth With Staggered Honeycomb Land

Hasham H. Chougule, A. V. Mirzamoghadam

GT 2018; V05BT15A015https://doi.org/10.1115/GT2018-75455

Abstract

View Articletitled, CFD Leakage Predictions of Labyrinth Seals Having Straight and Inclined Notched Teeth With Staggered Honeycomb Land

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Topics: Computational fluid dynamics , Honeycomb structures , Leakage , Flow (Dynamics) , Rotation , Cavities , Computer simulation , Design , Engineering simulation , Geometry

Formation and Evolution of Rayleigh-Bénard Streaks in Rotating Cavities

M. R. Puttock-Brown, M. G. Rose

GT 2018; V05BT15A016https://doi.org/10.1115/GT2018-75497

Abstract

View Articletitled, Formation and Evolution of Rayleigh-Bénard Streaks in Rotating Cavities

PDF

Topics: Cavities , Aircraft engines , Boundary-value problems , Flow (Dynamics) , Heat transfer , Pressure gradient , Turbulence

New Facility Setup for the Investigation of Cooling Flow, Viscous and Rotational Effects on the Interstage Seal Flow Behavior of a Gas Turbine

R. Guida, D. Lengani, D. Simoni, M. Ubaldi, P. Zunino

GT 2018; V05BT15A017https://doi.org/10.1115/GT2018-75630

Abstract

View Articletitled, New Facility Setup for the Investigation of Cooling Flow, Viscous and Rotational Effects on the Interstage Seal Flow Behavior of a Gas Turbine

PDF

Topics: Cooling , Flow (Dynamics) , Gas turbines , Cavities , Coolants , Pressure , Cavity flows , Discharge coefficient , Turbines , Annulus

Measurement of Pressures and Temperatures in a Cover-Plate Pre-Swirl System

Heng Wu, Gaowen Liu, Zhipeng Wu, Qing Feng, Wang Yangang

GT 2018; V05BT15A018https://doi.org/10.1115/GT2018-75671

Abstract

View Articletitled, Measurement of Pressures and Temperatures in a Cover-Plate Pre-Swirl System

PDF

Topics: Temperature , Pressure , Cooling , Flow (Dynamics) , Rotors , Blades , Discharge coefficient , Disks , Heat transfer , Nozzles

Effect of Rim Seal Configuration on Gas Turbine Cavity Sealing in Both Design and Off-Design Conditions

Riccardo Da Soghe, Cosimo Bianchini, Mirko Micio, Jacopo D’Errico, Francesco Bavassano

GT 2018; V05BT15A019https://doi.org/10.1115/GT2018-75712

Abstract

View Articletitled, Effect of Rim Seal Configuration on Gas Turbine Cavity Sealing in Both Design and Off-Design Conditions

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Topics: Cavities , Design , Gas turbines , Sealing (Process) , Rotors , Stators , Acoustics , Cavity flows , Computational fluid dynamics , Engines

Enhancement of Labyrinth Seals Efficiency by Means of a Multi-Objective Optimization Technique

Mikhail Gritckevich, Kunyuan Zhou, Vincent Peltier, Markus Raben, Olga Galchenko

GT 2018; V05BT15A020https://doi.org/10.1115/GT2018-75782

Abstract

View Articletitled, Enhancement of Labyrinth Seals Efficiency by Means of a Multi-Objective Optimization Technique

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Topics: Computer-aided engineering , Engineering systems and industry applications , Gas turbines , Heating , Leakage flows , Optimization , Pareto optimization , Stators , Workflow

A Reduced Order Model for Predicting Hot-Gas Ingestion Into the Wheelspace of Gas Turbines

Irsha Pardeshi, Jason Liu, Tom I-P. Shih

GT 2018; V05BT15A021https://doi.org/10.1115/GT2018-75802

Abstract

View Articletitled, A Reduced Order Model for Predicting Hot-Gas Ingestion Into the Wheelspace of Gas Turbines

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Topics: Gas turbines , Flow (Dynamics) , Rotors , Stators , Dimensions , Disks , Rotation , Design , Discharge coefficient , Pressure

A New Approach for Scaling Aspirating Face Seal Aerodynamics

Julius Wilhelm, Corina Schwitzke, Hans-Jörg Bauer, Tue Nguyen

GT 2018; V05BT15A022https://doi.org/10.1115/GT2018-75812

Abstract

View Articletitled, A New Approach for Scaling Aspirating Face Seal Aerodynamics

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Topics: Aerodynamics , Computer simulation , Engines , Mechanical behavior , Sealing (Process) , Turbomachinery

Film-Stiffness Characterization for Supercritical CO₂ Film-Riding Seals

Deepak Trivedi, Rahul A. Bidkar, Chris Wolfe, Xiaoqing Zheng

GT 2018; V05BT15A023https://doi.org/10.1115/GT2018-76161

Abstract

View Articletitled, Film-Stiffness Characterization for Supercritical CO<sub>2</sub> Film-Riding Seals

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Topics: Stiffness , Supercritical carbon dioxide , Rotors , Computational fluid dynamics , Fluids , Pressure , Bearings , Equilibrium (Physics) , Fluid films , Stators

Pressure Distributions Below Brush Seals at Varying Operating Conditions

Fabian Schur, Jens Friedrichs, Johan Flegler, Christos Georgakis, Thomas Polklas

GT 2018; V05BT15A024https://doi.org/10.1115/GT2018-76194

Abstract

View Articletitled, Pressure Distributions Below Brush Seals at Varying Operating Conditions

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Topics: Pressure , Flow (Dynamics) , Design , Leakage , Manufacturing , Modeling , Optical measurement , Resolution (Optics) , Rotors , Sealing (Process)

An Analytical Pressure and Leakage Model for Leaf Seals

Gregor Nicht, Reinhard Willinger

GT 2018; V05BT15A025https://doi.org/10.1115/GT2018-76202

Abstract

View Articletitled, An Analytical Pressure and Leakage Model for Leaf Seals

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Topics: Leakage , Pressure , Design , Leakage flows , Rotors , Sealing (Process) , Turbomachinery , Computational fluid dynamics , Engineering simulation , Flow (Dynamics)

Experimental and Numerical Investigations on Leakage Flow Characteristics of Two Kinds of Brush Seals

Yuanqiao Zhang, Jun Li, Xin Yan, Zhigang Li

GT 2018; V05BT15A026https://doi.org/10.1115/GT2018-76235

Abstract

View Articletitled, Experimental and Numerical Investigations on Leakage Flow Characteristics of Two Kinds of Brush Seals

PDF

Topics: Clearances (Engineering) , Computational fluid dynamics , Finite element methods , Flow (Dynamics) , Leakage , Leakage flows , Plates (structures) , Porous materials , Pressure , Reynolds-averaged Navier–Stokes equations

Design and Validation of a Pre-Swirl System in the Newly Developing Gas Turbine for Power Generation

Donghwa Kim, Hyungyu Lee, Jungsoo Lee, Jinsoo Cho

GT 2018; V05BT15A027https://doi.org/10.1115/GT2018-76255

Abstract

View Articletitled, Design and Validation of a Pre-Swirl System in the Newly Developing Gas Turbine for Power Generation

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Topics: Design , Energy generation , Gas turbines , Cooling , Shapes , Cooling systems , Discharge coefficient , Turbines , Computational fluid dynamics , Ducts

Numerical Analysis of Industrial Gas Turbine Secondary Air Systems Employing Vortex Reducers

Thierry Sibilli, GeonHwan Cho, Foster Kholi, Alberto Mucci

GT 2018; V05BT15A028https://doi.org/10.1115/GT2018-76313

Abstract

View Articletitled, Numerical Analysis of Industrial Gas Turbine Secondary Air Systems Employing Vortex Reducers

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Topics: Industrial gases , Numerical analysis , Turbines , Vortices , Computational fluid dynamics , Pressure , Cavities , Compressors , Flow (Dynamics) , Inflow

Pre-Swirl System Design Including Inlet Duct Shape by Using CFD Analysis

Hyungyu Lee, Jungsoo Lee, Sangwook Kim, Jinsoo Cho, Donghwa Kim

GT 2018; V05BT15A029https://doi.org/10.1115/GT2018-76323

Abstract

View Articletitled, Pre-Swirl System Design Including Inlet Duct Shape by Using CFD Analysis

PDF

Topics: Computational fluid dynamics , Design , Ducts , Shapes , Annulus , Nozzles , Discharge coefficient , Temperature , Fluids , Optimization

Windage Losses of a Meshing Gear Pair Measured at Different Working Conditions

D. Massini, T. Fondelli, B. Facchini, L. Tarchi, F. Leonardi

GT 2018; V05BT15A030https://doi.org/10.1115/GT2018-76823

Abstract

View Articletitled, Windage Losses of a Meshing Gear Pair Measured at Different Working Conditions

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Topics: Gears , Stress , Industrial lubrication systems , Aircraft engines , Flow (Dynamics) , Heat , Torque , Weight (Mass) , Bearings , Dimensions

Very-Large Eddy Simulations of Disk Heat Transfer in a Rotating Cavity Using Lattice-Boltzmann Method

J. Kouwa, Y. Iso, F. Polidoro, S. Gautier

GT 2018; V05BT15A031https://doi.org/10.1115/GT2018-76832

Abstract

View Articletitled, Very-Large Eddy Simulations of Disk Heat Transfer in a Rotating Cavity Using Lattice-Boltzmann Method

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Topics: Cavities , Disks , Eddies (Fluid dynamics) , Heat transfer , Lattice Boltzmann methods , Simulation , Convection , Coriolis force , Flow (Dynamics) , Geometry

The Effect of Manufacturing Tolerances on the Performance of Gas Turbine Air System Metering Holes With Chamfered Inlets

Polina Chernukha, Adrian Spencer, James A. Colwill

GT 2018; V05BT15A032https://doi.org/10.1115/GT2018-76875

Abstract

View Articletitled, The Effect of Manufacturing Tolerances on the Performance of Gas Turbine Air System Metering Holes With Chamfered Inlets

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Topics: Gas turbines , Manufacturing , Flow (Dynamics) , Pressure , Computational fluid dynamics , Discharge coefficient , Shear stress , Steady state

Heat Transfer and Pressure Measurements for the Forward Purge Cavity, Inner Endwall, and Rotor Platform of a Cooled Transonic Turbine Stage

Jeremy Nickol, Matthew Tomko, Randall Mathison, Jong S. Liu, Mark Morris, Malak F. Malak

GT 2018; V05BT15A033https://doi.org/10.1115/GT2018-76978

Abstract

View Articletitled, Heat Transfer and Pressure Measurements for the Forward Purge Cavity, Inner Endwall, and Rotor Platform of a Cooled Transonic Turbine Stage

PDF

Topics: Cavities , Heat transfer , Pressure measurement , Rotors , Turbines , Flow (Dynamics) , Cooling , Blades , Airfoils , Circuits

Hot Gas Ingestion Model Employing Flow Network With Axisymmetric Solvers

Yong W. Kim, Michael N. Okpara, Hans Hamm, Ramendra P. Roy, Hee-Koo Moon

GT 2018; V05BT15A034https://doi.org/10.1115/GT2018-77055

Abstract

View Articletitled, Hot Gas Ingestion Model Employing Flow Network With Axisymmetric Solvers

PDF

Topics: Flow (Dynamics) , Cavities , Disks , Discharge coefficient , Geometry , Pressure , Sealing (Process) , Turbines , Carbon dioxide , Cavity flows

Three-Dimensional CFD Analysis of Meshing Losses in a Spur Gear Pair

T. Fondelli, D. Massini, A. Andreini, B. Facchini, F. Leonardi

GT 2018; V05BT15A035https://doi.org/10.1115/GT2018-77141

Abstract

View Articletitled, Three-Dimensional CFD Analysis of Meshing Losses in a Spur Gear Pair

PDF

Topics: Computational fluid dynamics , Spur gears , Fluids , Gears , Transients (Dynamics) , Aircraft propulsion , Compression , Design , Eddies (Fluid dynamics) , Engineering simulation

Special Sessions

Drag and Heat Reduction Mechanism of the Porous Opposing Jet for Variable Blunt Hypersonic Vehicles

Shibin Li, Wei Huang, Zhenguo Wang, Li Yan

GT 2018; V05BT18A001https://doi.org/10.1115/GT2018-75151

Abstract

View Articletitled, Drag and Heat Reduction Mechanism of the Porous Opposing Jet for Variable Blunt Hypersonic Vehicles

PDF

Topics: Drag (Fluid dynamics) , Heat , Vehicles , Drag reduction , Orifices , Aerodynamics , Design , Disks , Flow (Dynamics) , Heating

Quasi-Static Thermal Modelling of Multi-Scale Sliding Contact for Unlubricated Brush Seal Materials

Qingfeng Xia, David Gillespie, Andrew Owen, Gervas Franceschini

GT 2018; V05BT18A002https://doi.org/10.1115/GT2018-75920

Abstract

View Articletitled, Quasi-Static Thermal Modelling of Multi-Scale Sliding Contact for Unlubricated Brush Seal Materials

PDF

Topics: Modeling , Sealants , Disks , Heat , Temperature , Finite element methods , Anisotropy , Thermal conductivity , Wear , Boundary-value problems

Investigation Into the Temperature Field and Thermal Deformation of a Spiral Bevel Gear Pair at Different Rotational Speeds

Shuyi Liu, Zhenxia Liu, Yaguo Lyu

GT 2018; V05BT18A003https://doi.org/10.1115/GT2018-76053

Abstract

View Articletitled, Investigation Into the Temperature Field and Thermal Deformation of a Spiral Bevel Gear Pair at Different Rotational Speeds

PDF

Topics: Spiral bevel gears , Temperature , Thermal deformation , Gears , Deformation , Finite element model , Friction , Heat , Steady state , Boundary-value problems

Additive Manufacturing

Experimental Study on Pressure Losses in Porous Materials

Giacomo Fantozzi, Mats Kinell, Sara Rabal Carrera, Jenny Nilsson, Yves Kuesters

GT 2018; V05BT21A001https://doi.org/10.1115/GT2018-75019

Abstract

View Articletitled, Experimental Study on Pressure Losses in Porous Materials

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Topics: Porous materials , Pressure , Discharge coefficient , Cooling , Lasers , Manufacturing , Additive manufacturing , Gas turbines , Permeability , Porosity

Numerical Optimization, Characterization, and Experimental Investigation of Additively Manufactured Communicating Microchannels

Kathryn L. Kirsch, Karen A. Thole

GT 2018; V05BT21A002https://doi.org/10.1115/GT2018-75429

Abstract

View Articletitled, Numerical Optimization, Characterization, and Experimental Investigation of Additively Manufactured Communicating Microchannels

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Topics: Additive manufacturing , Microchannels , Optimization , Heat transfer , Pressure , Design , Cooling , Flow (Dynamics) , Gas turbines , Lasers

Experimental Investigation on Additively Manufactured Transpiration and Film Cooling Structures

Zheng Min, Gan Huang, Sarwesh Narayan Parbat, Li Yang, Minking K. Chyu

GT 2018; V05BT21A003https://doi.org/10.1115/GT2018-76166

Abstract

View Articletitled, Experimental Investigation on Additively Manufactured Transpiration and Film Cooling Structures

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Topics: Additive manufacturing , Film cooling , Transpiration , Cooling , Metals , Coolants , Blood vessels , Fluids , Porosity , Airfoils

Adiabatic Film Cooling Effectiveness of a LAM Fabricated Porous Leading Edge Segment of a Turbine Blade

Luisana Calderon, Andres Curbelo, Gaurav Gupta, Jayanta S. Kapat

GT 2018; V05BT21A004https://doi.org/10.1115/GT2018-77114

Abstract

View Articletitled, Adiabatic Film Cooling Effectiveness of a LAM Fabricated Porous Leading Edge Segment of a Turbine Blade

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Topics: Film cooling , Turbine blades , Additive manufacturing , Coolants , Cooling , Transpiration , Blades , Carbon dioxide , Cylinders , Density

Effects of Coolant Feed Direction on Additively Manufactured Film Cooling Holes

Curtis K. Stimpson, Jacob C. Snyder, Karen A. Thole, Dominic Mongillo

GT 2018; V05BT21A005https://doi.org/10.1115/GT2018-77287

Abstract

View Articletitled, Effects of Coolant Feed Direction on Additively Manufactured Film Cooling Holes

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Topics: Additive manufacturing , Coolants , Film cooling , Flow (Dynamics) , Discharge coefficient , Gas turbines , High temperature , Nickel alloys , Surface roughness , Cooling

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