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ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition

June 17–21, 2019

Phoenix, Arizona, USA

Conference Sponsors:

ISBN:

978-0-7918-5855-4

In This Volume

Axial Flow Fan and Compressor Aerodynamics (35)
Unsteady Flows in Turbomachinery (27)

Volume 2A: Turbomachinery

Axial Flow Fan and Compressor Aerodynamics

Secondary Flow Measurements in a Compressor Cascade Using 3D LDA/PDA: Part A — Flow Topology and its Numerical Representation

Silvio Geist, Janneck Harbeck, Franz Joos

GT 2019; V02AT39A001doi:https://doi.org/10.1115/GT2019-90123

Abstract

View Articletitled, Secondary Flow Measurements in a Compressor Cascade Using 3D LDA/PDA: Part A — Flow Topology and its Numerical Representation

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Topics: Cascades (Fluid dynamics) , Compressors , Flow (Dynamics) , Flow measurement , Topology , Corners (Structural elements) , Lasers , Simulation , Blades , Boundary layers

Secondary Flow Measurements in a Compressor Cascade Using 3D LDA/PDA: Part B — Dispersed Phase Effects on Flow Topology

Janneck Harbeck, Silvio Geist, Franz Joos

GT 2019; V02AT39A002doi:https://doi.org/10.1115/GT2019-90124

Abstract

View Articletitled, Secondary Flow Measurements in a Compressor Cascade Using 3D LDA/PDA: Part B — Dispersed Phase Effects on Flow Topology

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Topics: Cascades (Fluid dynamics) , Compressors , Flow (Dynamics) , Flow measurement , Topology , Drops , Blades , Gas turbines , Water , Corners (Structural elements)

Loss in Axial Compressor Bleed Systems

S. D. Grimshaw, J. Brind, G. Pullan, R. Seki

GT 2019; V02AT39A003doi:https://doi.org/10.1115/GT2019-90150

Abstract

View Articletitled, Loss in Axial Compressor Bleed Systems

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Topics: Compressors , Flow (Dynamics) , Industrial gases , Turbines , Computation , Die cutting , Ducts , Geometry , High pressure (Physics) , Pressure

Study of the Tip Leakage Flow in a Compressor Cascade With Incidence Exceeding the Stability Limit

Markus W. Leitner, Stephan Staudacher, Martin G. Rose

GT 2019; V02AT39A004doi:https://doi.org/10.1115/GT2019-90224

Abstract

View Articletitled, Study of the Tip Leakage Flow in a Compressor Cascade With Incidence Exceeding the Stability Limit

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Topics: Cascades (Fluid dynamics) , Compressors , Leakage flows , Stability , Flow (Dynamics) , Vortices , Water , Particulate matter

Numerical Study of the Penny Cavity Leakage Effects From Variable Guide Vanes in a High Pressure Compressor: Adjustment of Standard-RANS-CFD-Model to a Hybrid LES Calculation

Hannes Wolf, Alexander Halcoussis

GT 2019; V02AT39A005doi:https://doi.org/10.1115/GT2019-90289

Abstract

View Articletitled, Numerical Study of the Penny Cavity Leakage Effects From Variable Guide Vanes in a High Pressure Compressor: Adjustment of Standard-RANS-CFD-Model to a Hybrid LES Calculation

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Topics: Cavities , Compressors , Computational fluid dynamics , Guide vanes , High pressure (Physics) , Leakage , Reynolds-averaged Navier–Stokes equations , Simulation

The Influence of Non-Axisymmetric End Wall in a High-Load Compressor Stage With Tandem Stator

Xiangjun Li, Wuli Chu

GT 2019; V02AT39A006doi:https://doi.org/10.1115/GT2019-90334

Abstract

View Articletitled, The Influence of Non-Axisymmetric End Wall in a High-Load Compressor Stage With Tandem Stator

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Topics: Compressors , Stators , Stress , Blades , Rotors , Separation (Technology) , Flow (Dynamics) , Corners (Structural elements) , Suction , Boundary layers

Aerodynamic Comparison Between Circumferential and Wing-Embedded Inlet Distortion for an Ultra-High Bypass Ratio Fan Stage

Daniel Giesecke, Jens Friedrichs

GT 2019; V02AT39A007doi:https://doi.org/10.1115/GT2019-90425

Abstract

View Articletitled, Aerodynamic Comparison Between Circumferential and Wing-Embedded Inlet Distortion for an Ultra-High Bypass Ratio Fan Stage

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Topics: Wings , Aircraft , Engines , Flow (Dynamics) , Inflow , Pressure , Boundary layers , Aircraft engines , Annulus , Boundary-value problems

Mechanisms and Quantitative Evaluation of Flow Loss Generation in a Multi-Stage Transonic Axial Compressor

Seishiro Saito, Masato Furukawa, Kazutoyo Yamada, Keisuke Watanabe, Akinori Matsuoka, Naoyuki Niwa

GT 2019; V02AT39A008doi:https://doi.org/10.1115/GT2019-90439

Abstract

View Articletitled, Mechanisms and Quantitative Evaluation of Flow Loss Generation in a Multi-Stage Transonic Axial Compressor

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Topics: Compressors , Flow (Dynamics) , Separation (Technology) , Corners (Structural elements) , Vortices , Boundary layers , Rotors , Shock waves , Stators , Wakes

On the Importance of Transition Control at Transonic Compressor Blades

A. Hergt, J. Klinner, S. Grund, C. Willert, W. Steinert, M. Beversdorff

GT 2019; V02AT39A009doi:https://doi.org/10.1115/GT2019-90440

Abstract

View Articletitled, On the Importance of Transition Control at Transonic Compressor Blades

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Topics: Blades , Compressors , Shock waves , Cascades (Fluid dynamics) , Flow (Dynamics) , Oscillations , Boundary layers , Shock (Mechanics) , Air jets , Boundary layer turbulence

Study of High Pressure Compressor Performances in Windmilling Conditions by Three Complementary Approaches: Experiment, LBM and 1D Modeling

Michel Nocture, Yoann Mery, Javier Ruiz Domingo, Nicolas Rochuon, Benoit Bonnal, Emmanuel Vanoli, Pradeep Gopalakrishnan, Avinash Jammalamadaka

GT 2019; V02AT39A010doi:https://doi.org/10.1115/GT2019-90465

Abstract

View Articletitled, Study of High Pressure Compressor Performances in Windmilling Conditions by Three Complementary Approaches: Experiment, LBM and 1D Modeling

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Topics: Compressors , High pressure (Physics) , Modeling , Engines , Flow (Dynamics) , Design , Flight , Combustion chambers , Engineering simulation , Lattice Boltzmann methods

Efficient Design Investigation of a Turbofan in Distorted Inlet Conditions

Benjamin Godard, Edouard De Jaeghere, Nicolas Gourdain

GT 2019; V02AT39A011doi:https://doi.org/10.1115/GT2019-90471

Abstract

View Articletitled, Efficient Design Investigation of a Turbofan in Distorted Inlet Conditions

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Topics: Design , Turbofans , Computation , Blades , Chords (Trusses) , Computational fluid dynamics , Modeling , Optimization , Stress , Symmetry (Physics)

Numerical Investigation on the Effect of Bleed Port With Self-Recirculating Casing Treatment on the Stability of a 1.5-Stage Transonic Compressor

Yiming Zhong, WuLi Chu, HaoGuang Zhang

GT 2019; V02AT39A012doi:https://doi.org/10.1115/GT2019-90543

Abstract

View Articletitled, Numerical Investigation on the Effect of Bleed Port With Self-Recirculating Casing Treatment on the Stability of a 1.5-Stage Transonic Compressor

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Topics: Compressors , Stability , Flow (Dynamics) , Annulus , Pressure , Suction , Computer simulation , Design , Ejectors , Jets

A No-Calibration Approach to Modelling Compressor Blade Rows With Body Forces Employing Artificial Neural Networks

S. Pazireh, J. J. Defoe

GT 2019; V02AT39A013doi:https://doi.org/10.1115/GT2019-90553

Abstract

View Articletitled, A No-Calibration Approach to Modelling Compressor Blade Rows With Body Forces Employing Artificial Neural Networks

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Topics: Artificial neural networks , Blades , Calibration , Compressors , Modeling , Flow (Dynamics) , Flow turning , Airfoils , Boundary layers , Computational fluid dynamics

Experimental Investigation on the Plasma Flow Control of Axial Compressor Rotating Stall

Haideng Zhang, Yun Wu, Xianjun Yu, Yinghong Li, Baojie Liu

GT 2019; V02AT39A014doi:https://doi.org/10.1115/GT2019-90609

Abstract

View Articletitled, Experimental Investigation on the Plasma Flow Control of Axial Compressor Rotating Stall

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Topics: Compressors , Flow control , Plasmas (Ionized gases) , Pressure , Rotation , Rotors , Flow (Dynamics)

Advances in High-Speed Linear Design Technology: Novel Approach to Sidewall Geometry Design for Erosion Tests

Maksim Sokolov, Max Lorenz, Mirco Rostamian, Christian Koch, Matthias Weissschuh, Stephan Staudacher

GT 2019; V02AT39A015doi:https://doi.org/10.1115/GT2019-90743

Abstract

View Articletitled, Advances in High-Speed Linear Design Technology: Novel Approach to Sidewall Geometry Design for Erosion Tests

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Topics: Design , Erosion , Geometry , Flow (Dynamics) , Testing , Cascades (Fluid dynamics) , Blades , Sealing (Process) , Boundary layers , Compressors

Numerical Investigation of Cut-Corner in Recess Vaned Casing Treatment

Xiangyi Chen, Wuli Chu, Haoguang Zhang, Bo Luo

GT 2019; V02AT39A016doi:https://doi.org/10.1115/GT2019-90751

Abstract

View Articletitled, Numerical Investigation of Cut-Corner in Recess Vaned Casing Treatment

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Topics: Corners (Structural elements) , Flow (Dynamics) , Blades , Clearances (Engineering) , Computer simulation , Delays , Fans

A Passive Flow Control to Mitigate the Corner Separation in an Axial Compressor by a Slotted Rotor Blade

Sungho Yoon, Rao Ajay, Venkata Chaluvadi, Vittorio Michelassi, Ramakrishna Mallina

GT 2019; V02AT39A017doi:https://doi.org/10.1115/GT2019-90754

Abstract

View Articletitled, A Passive Flow Control to Mitigate the Corner Separation in an Axial Compressor by a Slotted Rotor Blade

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Topics: Blades , Compressors , Corners (Structural elements) , Flow control , Rotors , Separation (Technology) , Flow (Dynamics) , Suction , Momentum , Pressure

Reducing Instrumentation Errors Caused by Circumferential Flow Field Variations in Multi-Stage Axial Compressors

M. Chilla, G. Pullan, S. Gallimore

GT 2019; V02AT39A018doi:https://doi.org/10.1115/GT2019-90839

Abstract

View Articletitled, Reducing Instrumentation Errors Caused by Circumferential Flow Field Variations in Multi-Stage Axial Compressors

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Topics: Compressors , Errors , Flow (Dynamics) , Instrumentation , Probes , Stators , Pressure , Temperature , Aircraft engines , Annulus

Investigation of Turbulence Characteristics in a Tip Leakage Flow Model Using Large-Eddy Simulation

Yanfei Gao, Yangwei Liu, Lipeng Lu

GT 2019; V02AT39A019doi:https://doi.org/10.1115/GT2019-90844

Abstract

View Articletitled, Investigation of Turbulence Characteristics in a Tip Leakage Flow Model Using Large-Eddy Simulation

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Topics: Large eddy simulation , Leakage flows , Turbulence , Flow (Dynamics) , Rotors , Reynolds-averaged Navier–Stokes equations , Vortices , Boundary-value problems , Compressors , Ducts

Corner Stall Prediction in a Compressor Linear Cascade Using Very Large Eddy Simulation (VLES) Lattice-Boltzmann Method

Antoine Maros, Benoît Bonnal, Ignacio Gonzalez-Martino, James Kopriva, Francesco Polidoro

GT 2019; V02AT39A020doi:https://doi.org/10.1115/GT2019-90919

Abstract

View Articletitled, Corner Stall Prediction in a Compressor Linear Cascade Using Very Large Eddy Simulation (VLES) Lattice-Boltzmann Method

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Topics: Cascades (Fluid dynamics) , Compressors , Corners (Structural elements) , Large eddy simulation , Lattice Boltzmann methods , Design , Simulation , Airfoils , Engineering simulation , Pressure

Systematic Experimental Evaluations Aimed at Optimizing the Geometry of Axial Casing Groove in a Compressor

Huang Chen, Subhra Shankha Koley, Yuanchao Li, Joseph Katz

GT 2019; V02AT39A021doi:https://doi.org/10.1115/GT2019-91050

Abstract

View Articletitled, Systematic Experimental Evaluations Aimed at Optimizing the Geometry of Axial Casing Groove in a Compressor

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Topics: Compressors , Geometry , Flow (Dynamics) , Blades , Rotation , Vortices , Equipment performance , Flow measurement , Flow visualization , Inlet guide vanes

Effect of Turbulence Model on the Prediction of Performance and Span-Wise Mixing in High-Speed Highly-Loaded Multi-Stage Axial-Flow Compressor

Takashi Goto, Tetsuya Oshio, Naoki Tani, Mizuho Aotsuka, Guillaume Pallot, Dai Kato

GT 2019; V02AT39A022doi:https://doi.org/10.1115/GT2019-91141

Abstract

View Articletitled, Effect of Turbulence Model on the Prediction of Performance and Span-Wise Mixing in High-Speed Highly-Loaded Multi-Stage Axial-Flow Compressor

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Topics: Axial flow , Compressors , Turbulence , Simulation , Flow (Dynamics) , Eddies (Fluid dynamics) , Temperature , Anisotropy , Clearances (Engineering) , Computation

Introduction and Commissioning of the New Darmstadt Transonic Compressor Test Facility

Christian Kunkel, Jan Werner, Daniel Franke, Heinz-Peter Schiffer, Fabian Wartzek, Christoph Biela, Christoph Starke

GT 2019; V02AT39A023doi:https://doi.org/10.1115/GT2019-91165

Abstract

View Articletitled, Introduction and Commissioning of the New Darmstadt Transonic Compressor Test Facility

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Topics: Compressors , Test facilities , Control systems , Hardware , Aerospace industry , Computer software , Data acquisition , Design , Flow (Dynamics) , Gas turbines

Design and Test of a Novel Highly-Loaded Compressor

Chengwu Yang, Ge Han, Shengfeng Zhao, Xingen Lu, Yanfeng Zhang, Ziliang Li

GT 2019; V02AT39A024doi:https://doi.org/10.1115/GT2019-91181

Abstract

View Articletitled, Design and Test of a Novel Highly-Loaded Compressor

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Topics: Compressors , Design , Clearances (Engineering) , Pressure , Diffusers , Rotors , Blades , Flow (Dynamics) , Leakage flows , High pressure (Physics)

Deficiencies in Turbulence Modelling for the Prediction of the Stability Boundary in Highly Loaded Compressors

Jose Moreno, John Dodds, Mehdi Vahdati, Sina Stapelfeldt

GT 2019; V02AT39A025doi:https://doi.org/10.1115/GT2019-91227

Abstract

View Articletitled, Deficiencies in Turbulence Modelling for the Prediction of the Stability Boundary in Highly Loaded Compressors

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Topics: Compressors , Modeling , Stability , Turbulence , Boundary layers , Flow (Dynamics) , Leakage flows , Resolution (Optics) , Reynolds-averaged Navier–Stokes equations , Uncertainty

Accuracy Assessment of Steady and Unsteady Multistage High Pressure Compressor Simulations

Sebastian Lück, Stefan Kuntzagk, Guido Doebbener, Andreas Kellersmann, Christoph Bode, Jens Friedrichs

GT 2019; V02AT39A026doi:https://doi.org/10.1115/GT2019-91310

Abstract

View Articletitled, Accuracy Assessment of Steady and Unsteady Multistage High Pressure Compressor Simulations

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Topics: Compressors , High pressure (Physics) , Simulation , Computational fluid dynamics , Steady state , Engines , Reynolds-averaged Navier–Stokes equations , Stators , Aircraft , Computer simulation

Predicting the Operability of Damaged Compressors Using Machine Learning

J. V. Taylor, B. Conduit, A. Dickens, C. Hall, M. Hillel, R. J. Miller

GT 2019; V02AT39A027doi:https://doi.org/10.1115/GT2019-91339

Abstract

View Articletitled, Predicting the Operability of Damaged Compressors Using Machine Learning

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Topics: Compressors , Machine learning , Aerospace industry , Testing , Blades , Damage , Uncertainty

Prediction of Rotating Stall During Startup for Axial Compressors

Ryosuke Mito, Satoshi Yamashita

GT 2019; V02AT39A028doi:https://doi.org/10.1115/GT2019-91340

Abstract

View Articletitled, Prediction of Rotating Stall During Startup for Axial Compressors

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Topics: Compressors , Stators , Computational fluid dynamics , Flow (Dynamics) , Machinery , Pressure , Blades , Energy generation , Excitation , Fluctuations (Physics)

Study on Effect of Axial Overlap on Tip Leakage Flow Structure in Tandem Bladed Low Speed Axial Flow Compressor

Ajey Singh, Chetan S. Mistry

GT 2019; V02AT39A029doi:https://doi.org/10.1115/GT2019-91366

Abstract

View Articletitled, Study on Effect of Axial Overlap on Tip Leakage Flow Structure in Tandem Bladed Low Speed Axial Flow Compressor

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Topics: Axial flow , Leakage flows , Flow (Dynamics) , Blades , Compressors , Fluids , Leakage , Momentum , Rotors , Chords (Trusses)

Evaluating the Aerodynamic Impact of Circumferentially Grooved Fan Casing Treatments With Integrated Acoustic Liners on a Turbofan Rotor

Richard F. Bozak, Gary G. Podboy

GT 2019; V02AT39A030doi:https://doi.org/10.1115/GT2019-91369

Abstract

View Articletitled, Evaluating the Aerodynamic Impact of Circumferentially Grooved Fan Casing Treatments With Integrated Acoustic Liners on a Turbofan Rotor

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Topics: Acoustics , Rotors , Turbofans , Turbulence , Noise (Sound) , Clearances (Engineering) , Fans , Leakage , NASA , Noise control

Improving Aerodynamic Performance of a Highly Loaded Compressor Based on Coanda Jet Flap

Juan Du, Yiwen Li, Zhihui Li, Jichao Li, Zinan Wang, Hongwu Zhang

GT 2019; V02AT39A031doi:https://doi.org/10.1115/GT2019-91552

Abstract

View Articletitled, Improving Aerodynamic Performance of a Highly Loaded Compressor Based on Coanda Jet Flap

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Topics: Compressors , Flow (Dynamics) , Blades , Stators , Cascades (Fluid dynamics) , Design , Pressure , Artificial neural networks , Engineering prototypes , Flow control

Reducing Compressor Shroud Leakage Flows by Raising the Stator Hub Line: Low Speed Tests

Henner Schrapp, Arne Dodegge, Volker Gümmer, Neil W. Harvey, Jörn Städing, Jens Friedrichs

GT 2019; V02AT39A032doi:https://doi.org/10.1115/GT2019-91611

Abstract

View Articletitled, Reducing Compressor Shroud Leakage Flows by Raising the Stator Hub Line: Low Speed Tests

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Topics: Compressors , Leakage flows , Stators , Pressure , Flow (Dynamics) , Cavities , Design , Wind , Annulus , Boundary layers

Evaluation of Compressor Blading With Blade End Slots and Full-Span Slots in a Highly Loaded Compressor Cascade

Yumeng Tang, Yangwei Liu, Lipeng Lu

GT 2019; V02AT39A033doi:https://doi.org/10.1115/GT2019-91734

Abstract

View Articletitled, Evaluation of Compressor Blading With Blade End Slots and Full-Span Slots in a Highly Loaded Compressor Cascade

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Topics: Blades , Cascades (Fluid dynamics) , Compressors , Flow (Dynamics) , Separation (Technology) , Aircraft engines , Corners (Structural elements) , Design , Geometry , Jets

Radial Variation in Distortion Transfer and Generation in a Highly Loaded Fan Stage From Near-Stall to Choke

Daniel R. Soderquist, Andrew D. Orme, Steven E. Gorrell, Michael G. List

GT 2019; V02AT39A034doi:https://doi.org/10.1115/GT2019-91753

Abstract

View Articletitled, Radial Variation in Distortion Transfer and Generation in a Highly Loaded Fan Stage From Near-Stall to Choke

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Topics: Annulus , Blades , Compressors , Design , Engineering simulation , Pressure , Rotors , Simulation , Temperature

Swirl Distortion Using Stream Vanes for Boundary Layer Ingestion Research

Julia E. Stephens, Mark Celestina, Christopher Hughes

GT 2019; V02AT39A035doi:https://doi.org/10.1115/GT2019-92073

Abstract

View Articletitled, Swirl Distortion Using Stream Vanes for Boundary Layer Ingestion Research

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Topics: Boundary layers , Flow (Dynamics) , Probes , Computational fluid dynamics , Design , Engineering simulation , NASA , Pressure , Simulation , Test facilities

Unsteady Flows in Turbomachinery

Modelling Axisymmetric Centrifugal Compressor Characteristics From First Principles

Katherine H. Powers, Chris J. Brace, Chris J. Budd, Colin D. Copeland, Paul A. Milewski

GT 2019; V02AT45A001doi:https://doi.org/10.1115/GT2019-90091

Abstract

View Articletitled, Modelling Axisymmetric Centrifugal Compressor Characteristics From First Principles

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Topics: Compressors , Modeling , Surges , Flow (Dynamics) , Impellers , Pressure , Emissions , Engines , Momentum , Oscillations

A New Data-Driven Turbulence Model Framework for Unsteady Flows Applied to Wall-Jet and Wall-Wake Flows

Chitrarth Lav, Jimmy Philip, Richard D. Sandberg

GT 2019; V02AT45A002doi:https://doi.org/10.1115/GT2019-90179

Abstract

View Articletitled, A New Data-Driven Turbulence Model Framework for Unsteady Flows Applied to Wall-Jet and Wall-Wake Flows

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Topics: Flow (Dynamics) , Turbulence , Unsteady flow , Wakes , Machine learning , Algorithms , Vortex shedding , Geometry , Model development , Momentum

Understanding Unsteady Flow Behaviour in a Low Aspect Ratio Contra-Rotating Axial Fan Under Radially Distorted Inflow

Manas Madasseri Payyappalli, A. M. Pradeep

GT 2019; V02AT45A003doi:https://doi.org/10.1115/GT2019-90252

Abstract

View Articletitled, Understanding Unsteady Flow Behaviour in a Low Aspect Ratio Contra-Rotating Axial Fan Under Radially Distorted Inflow

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Topics: Inflow , Unsteady flow , Rotors , Flow (Dynamics) , Gas turbines , Engines , Fans , Fourier series , Pressure , Pressure sensors

Study on Flow Induced Vibration Mechanism of Internal Flow Field in Hydraulic Torque Converter

Zhifang Ke, Cheng Liu, Qingdong Yan, Wei Wei, Zemin Song

GT 2019; V02AT45A004doi:https://doi.org/10.1115/GT2019-90276

Abstract

View Articletitled, Study on Flow Induced Vibration Mechanism of Internal Flow Field in Hydraulic Torque Converter

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Topics: Blades , Flow-induced vibrations , Internal flow , Simulation , Torque converters , Vortices

Flow Mechanism and Loss Analysis of Tip Leakage Flow With Delayed Detached Eddy Simulation

Hui Li, Xiutao Bian, Xinrong Su, Xin Yuan

GT 2019; V02AT45A005doi:https://doi.org/10.1115/GT2019-90410

Abstract

View Articletitled, Flow Mechanism and Loss Analysis of Tip Leakage Flow With Delayed Detached Eddy Simulation

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Topics: Eddies (Fluid dynamics) , Flow (Dynamics) , Leakage flows , Simulation , Delay differential equations , Turbulence , Vortices , Entropy , Leakage , Reynolds-averaged Navier–Stokes equations

Investigation of Stall Process in a Centrifugal Compressor With a Volute Under Transonic Conditions

Ce Yang, Wenli Wang, Hanzhi Zhang, Yanzhao Li, Ding Tong, Changmao Yang, Weilin Yi

GT 2019; V02AT45A006doi:https://doi.org/10.1115/GT2019-90713

Abstract

View Articletitled, Investigation of Stall Process in a Centrifugal Compressor With a Volute Under Transonic Conditions

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Topics: Compressors , Impellers , Stall inception , Pressure , Flow (Dynamics) , Internal flow , Simulation , Simulation results

Impact of Turbine Center Frame Wakes on Downstream Rows in Heavy Duty Low Pressure Turbine

Sara Biagiotti, Juri Bellucci, Michele Marconcini, Andrea Arnone, Gino Baldi, Mirko Ignesti, Vittorio Michelassi, Libero Tapinassi

GT 2019; V02AT45A007doi:https://doi.org/10.1115/GT2019-90721

Abstract

View Articletitled, Impact of Turbine Center Frame Wakes on Downstream Rows in Heavy Duty Low Pressure Turbine

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Topics: Pressure , Turbines , Wakes , Design , Blades , Rotors , Nozzle guide vanes , Stress , Annulus , Computation

Control Strategies of an Academic Rotor/Stator Cavity Through Sensitivity Analysis

Matthieu Queguineur, Laurent Gicquel, Gabriel Staffelbach

GT 2019; V02AT45A008doi:https://doi.org/10.1115/GT2019-90745

Abstract

View Articletitled, Control Strategies of an Academic Rotor/Stator Cavity Through Sensitivity Analysis

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Topics: Cavities , Rotors , Sensitivity analysis , Stators , Flow (Dynamics) , Stability , Turbomachinery , Actuators , Aerospace industry , Boundary layers

Unsteady Flow Interactions Between a High- and Low-Pressure Turbine: Part 1 — Time-Resolved Flow

P. Z. Sterzinger, S. Zerobin, F. Merli, L. Wiesinger, M. Dellacasagrande, A. Peters, G. Maini, F. Heitmeir, E. Göttlich

GT 2019; V02AT45A009doi:https://doi.org/10.1115/GT2019-90790

Abstract

View Articletitled, Unsteady Flow Interactions Between a High- and Low-Pressure Turbine: Part 1 — Time-Resolved Flow

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Topics: Flow (Dynamics) , Pressure , Turbine components , Unsteady flow , Rotors , Turbines , Ducts , Engines , Fluctuations (Physics) , High pressure (Physics)

Transient Analysis of Rotating Stall Development in a Centrifugal Compressor With Vaned Diffuser

Nobumichi Fujisawa, Masaki Takahashi, Yutaka Ohta

GT 2019; V02AT45A010doi:https://doi.org/10.1115/GT2019-90797

Abstract

View Articletitled, Transient Analysis of Rotating Stall Development in a Centrifugal Compressor With Vaned Diffuser

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Topics: Compressors , Diffusers , Transient analysis , Impellers , Transients (Dynamics) , Separation (Technology) , Vortices , Computational fluid dynamics , Numerical analysis , Pressure

Unsteady Flow Interactions Between a High- and Low-Pressure Turbine: Part 2 — Rotor-Synchronic Averaging and Proper Orthogonal Decomposition of the Unsteady Flow Fields

M. Dellacasagrande, P. Z. Sterzinger, S. Zerobin, F. Merli, L. Wiesinger, A. Peters, G. Maini, F. Heitmeir, E. Göttlich

GT 2019; V02AT45A011doi:https://doi.org/10.1115/GT2019-90824

Abstract

View Articletitled, Unsteady Flow Interactions Between a High- and Low-Pressure Turbine: Part 2 — Rotor-Synchronic Averaging and Proper Orthogonal Decomposition of the Unsteady Flow Fields

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Topics: Pressure , Principal component analysis , Rotors , Turbine components , Unsteady flow , Turbines , Flow (Dynamics) , Aircraft engines , Ducts , Fluctuations (Physics)

Impact of Exit Duct Dynamic Response on Compressor Stability

Wenqiang Zhang, Mehdi Vahdati, Fanzhou Zhao

GT 2019; V02AT45A012doi:https://doi.org/10.1115/GT2019-90857

Abstract

View Articletitled, Impact of Exit Duct Dynamic Response on Compressor Stability

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Topics: Compressors , Ducts , Dynamic response , Stability , Nozzles , Blades , Reflection , Transients (Dynamics) , Waves , Acoustics

The Effect of Rotor-Stator Gap on Repeating-Stage Compressor Loss

Pawel J. Przytarski, Andrew P. S. Wheeler

GT 2019; V02AT45A013doi:https://doi.org/10.1115/GT2019-91007

Abstract

View Articletitled, The Effect of Rotor-Stator Gap on Repeating-Stage Compressor Loss

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Topics: Compressors , Rotors , Stators , Blades , Turbulence , Wakes , Energy dissipation , Large eddy simulation , Numerical analysis , Simulation

Modelling the Transient Behaviour of Gas Turbines

Djordje Petkovic, Milan Banjac, Srdjan Milic, Milan V. Petrovic, Alexander Wiedermann

GT 2019; V02AT45A014doi:https://doi.org/10.1115/GT2019-91008

Abstract

View Articletitled, Modelling the Transient Behaviour of Gas Turbines

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Topics: Gas turbines , Modeling , Transients (Dynamics) , Flow (Dynamics) , Simulation , Stress , Boundary-value problems , Compressors , Differential equations , Dynamic models

Full-Annulus URANS Study on the Transportation of Combustion Inhomogeneity in a Four-Stage Cooled Turbine

Zhongran Chi, Haiqing Liu, Shusheng Zang, Chengxiong Pan, Guangyun Jiao

GT 2019; V02AT45A015doi:https://doi.org/10.1115/GT2019-91183

Abstract

View Articletitled, Full-Annulus URANS Study on the Transportation of Combustion Inhomogeneity in a Four-Stage Cooled Turbine

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Topics: Annulus , Combustion , Transportation systems , Turbines , Temperature , Combustion chambers , Gas turbines , Blades , Computational fluid dynamics , Coolants

Large Eddy Simulation of Combustor and Complete Single-Stage High-Pressure Turbine of the FACTOR Test Rig

Martin Thomas, Jerome Dombard, Florent Duchaine, Laurent Gicquel, Charlie Koupper

GT 2019; V02AT45A016doi:https://doi.org/10.1115/GT2019-91206

Abstract

View Articletitled, Large Eddy Simulation of Combustor and Complete Single-Stage High-Pressure Turbine of the FACTOR Test Rig

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Topics: Combustion chambers , High pressure (Physics) , Large eddy simulation , Turbines

Recognition of Structures Leading to Transition in a Low Pressure Turbine Cascade: Effect of Reduced Frequency

D. Lengani, D. Simoni, M. Ubaldi, P. Zunino, F. Bertini

GT 2019; V02AT45A017doi:https://doi.org/10.1115/GT2019-91222

Abstract

View Articletitled, Recognition of Structures Leading to Transition in a Low Pressure Turbine Cascade: Effect of Reduced Frequency

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Topics: Cascades (Fluid dynamics) , Pressure , Turbines , Boundary layers , Wakes , Blades , Cycles , Suction , Turbulence , Computation

Turbine Cascade Profile Loss Sensitivity to Incoming Wake Parameters: Effects of Reduced Frequency, Wake Momentum Defect and Axial Gap

D. Simoni, V. Yepmo, P. Zunino, M. Ubaldi, D. Lengani, F. Bertini

GT 2019; V02AT45A018doi:https://doi.org/10.1115/GT2019-91226

Abstract

View Articletitled, Turbine Cascade Profile Loss Sensitivity to Incoming Wake Parameters: Effects of Reduced Frequency, Wake Momentum Defect and Axial Gap

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Topics: Cascades (Fluid dynamics) , Momentum , Turbines , Wakes , Arches , Design , Flow (Dynamics) , Inflow , Pressure , Principal component analysis

Evaluation of Turbulent Spot Production Rate in Boundary Layers Under Variable Pressure Gradients for Gas Turbine Applications

M. Dellacasagrande, D. Lengani, D. Simoni, M. Ubaldi, P. Zunino

GT 2019; V02AT45A019doi:https://doi.org/10.1115/GT2019-91229

Abstract

View Articletitled, Evaluation of Turbulent Spot Production Rate in Boundary Layers Under Variable Pressure Gradients for Gas Turbine Applications

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Topics: Boundary layers , Gas turbines , Pressure gradient , Turbulence , Flow (Dynamics) , Reynolds number , Arches , Databases , Flat plates , Probability

Robust Active Flow Control of a Stator Cascade With Integer Control Functions and Sum-Up Rounding

Karl Neuhäuser, Rudibert King

GT 2019; V02AT45A020doi:https://doi.org/10.1115/GT2019-91249

Abstract

View Articletitled, Robust Active Flow Control of a Stator Cascade With Integer Control Functions and Sum-Up Rounding

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Topics: Cascades (Fluid dynamics) , Flow control , Stators , Valves , Combustion , Compressors , Control algorithms , Control equipment , Flow (Dynamics) , Robust control

Loss Analysis of Unsteady Turbomachinery Flows Based on the Mechanical Work Potential

John Leggett, Edward Richardson, Stephan Priebe, Aamir Shabbir, Vittorio Michelassi, Richard Sandberg

GT 2019; V02AT45A021doi:https://doi.org/10.1115/GT2019-91253

Abstract

View Articletitled, Loss Analysis of Unsteady Turbomachinery Flows Based on the Mechanical Work Potential

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Topics: Flow (Dynamics) , Turbomachinery , Compressors , Cascades (Fluid dynamics) , Pressure , Reynolds-averaged Navier–Stokes equations , Wakes , Blades , Energy dissipation , Engines

Computational and Experimental Study of Hot Streak Transport Within the First Stage of a Gas Turbine

Paolo Gaetani, Giacomo Persico, Lorenzo Pinelli, Michele Marconcini, Roberto Pacciani

GT 2019; V02AT45A022doi:https://doi.org/10.1115/GT2019-91276

Abstract

View Articletitled, Computational and Experimental Study of Hot Streak Transport Within the First Stage of a Gas Turbine

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Topics: Gas turbines , Blades , Computational fluid dynamics , Engineering simulation , Flow (Dynamics) , Simulation , Temperature , Rotors , Stators , Turbines

Prediction of Reynolds Number Effects on Low-Pressure Turbines Using a High-Order ILES Method

Marc Bolinches-Gisbert, David Cadrecha Robles, Roque Corral, Fernando Gisbert

GT 2019; V02AT45A023doi:https://doi.org/10.1115/GT2019-91346

Abstract

View Articletitled, Prediction of Reynolds Number Effects on Low-Pressure Turbines Using a High-Order ILES Method

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Topics: Pressure , Reynolds number , Turbines , Boundary layers , Wakes , Engineering simulation , Fluctuations (Physics) , Simulation , Airfoils , Cascades (Fluid dynamics)

Circumferential Propagation Characteristic of Unsteady Flow in a Subsonic Axial Flow Compressor Rotor at Different Reynolds Numbers

Zhiyang Chen, Yanhui Wu, Yanwen Zhang, Junwen Gan, Jinhuaiyuan An

GT 2019; V02AT45A024doi:https://doi.org/10.1115/GT2019-91498

Abstract

View Articletitled, Circumferential Propagation Characteristic of Unsteady Flow in a Subsonic Axial Flow Compressor Rotor at Different Reynolds Numbers

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Topics: Axial flow , Reynolds number , Rotors , Unsteady flow , Flow (Dynamics) , Leakage flows , Blades , Compressors , Electromagnetic spectrum , Pressure

Numerical Simulation of Surge in a Centrifugal Compressor With Different Operating Condition Using the Plenum Model

Cheng Jia, Guoliang Qin, Xuefei Chen, Yi Wang

GT 2019; V02AT45A025doi:https://doi.org/10.1115/GT2019-91602

Abstract

View Articletitled, Numerical Simulation of Surge in a Centrifugal Compressor With Different Operating Condition Using the Plenum Model

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Topics: Compressors , Computer simulation , Surges

Experimental Study on the Influence of Casing Treatment on Near-Stall Unsteady Behavior of a Mixed-Flow Compressor

Juan Du, Felix Kauth, Jichao Li, Qianfeng Zhang, Joerg R. Seume

GT 2019; V02AT45A026doi:https://doi.org/10.1115/GT2019-92034

Abstract

View Articletitled, Experimental Study on the Influence of Casing Treatment on Near-Stall Unsteady Behavior of a Mixed-Flow Compressor

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Topics: Compressors , Flow (Dynamics) , Stall inception , Chords (Trusses) , Blades , Rotors , Stability , Clearances (Engineering) , Computational fluid dynamics , Flow separation