Topics: Flow (Dynamics) , Resolution (Optics) , Turbines , Cascades (Fluid dynamics) , Flow visualization , Laser Doppler anemometry , Suction , Turbulence , Vortices

Aerodynamic Interaction Between Incoming Vortex and Tip Leakage Flow in a Turbine Cascade

Kai Zhou, Chao Zhou

GT 2018; V02BT41A002https://doi.org/10.1115/GT2018-75138

Abstract

View Articletitled, Aerodynamic Interaction Between Incoming Vortex and Tip Leakage Flow in a Turbine Cascade

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Topics: Cascades (Fluid dynamics) , Leakage flows , Turbines , Vortices , Leakage , Swirling flow , Flow (Dynamics) , Generators , Vorticity , Analytical methods

A High Fidelity Quality Assessment of High Pressure Turbine Blades Using Surface Curvature and Gradient-Based Adjoint

Akhil Mulloth, Gabriel Banks, Giulio Zamboni, Simon Bather

GT 2018; V02BT41A003https://doi.org/10.1115/GT2018-75157

Abstract

View Articletitled, A High Fidelity Quality Assessment of High Pressure Turbine Blades Using Surface Curvature and Gradient-Based Adjoint

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Topics: Airfoils , Gas turbines , High pressure (Physics) , Manufacturing , Shape optimization , Surface quality , Turbine blades

The Effect of Turbulent Scales on Low-Pressure Turbine Aerodynamics: Part A — An Optimized Turbulent Boundary-Condition

Christoph Müller-Schindewolffs, Florian Herbst

GT 2018; V02BT41A004https://doi.org/10.1115/GT2018-75162

Abstract

View Articletitled, The Effect of Turbulent Scales on Low-Pressure Turbine Aerodynamics: Part A — An Optimized Turbulent Boundary-Condition

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Topics: Aerodynamics , Boundary-value problems , Pressure , Turbines , Turbulence , Inflow , Simulation , Acoustics , Cascades (Fluid dynamics) , Compressible flow

The Effect of Turbulent Scales on Low-Pressure Turbine Aerodynamics: Part B — Scale Resolving Simulations

Felix Schwarzbach, Christoph Müller-Schindewolffs, Christoph Bode, Florian Herbst

GT 2018; V02BT41A005https://doi.org/10.1115/GT2018-75163

Abstract

View Articletitled, The Effect of Turbulent Scales on Low-Pressure Turbine Aerodynamics: Part B — Scale Resolving Simulations

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Topics: Aerodynamics , Engineering simulation , Pressure , Simulation , Turbines , Turbulence , Boundary layers , Cascades (Fluid dynamics) , Boundary-value problems , Eddies (Fluid dynamics)

The Effect of Tip Shroud Geometries on Last Turbine Stage Efficiency

Andrey Granovskiy, Igor Afanasiev

GT 2018; V02BT41A006https://doi.org/10.1115/GT2018-75416

Abstract

View Articletitled, The Effect of Tip Shroud Geometries on Last Turbine Stage Efficiency

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Topics: Turbines , Damping , Blades , Design , Flow (Dynamics) , Resonance , Rotors , Boundary-value problems , Diffusers , Fins

Interaction Phenomena of High Frequency Pulsed Blowing in LP Turbine-Like Boundary Layers at High Speed Test Conditions

Valentin Bettrich, Martin Bitter, Reinhard Niehuis

GT 2018; V02BT41A007https://doi.org/10.1115/GT2018-75475

Abstract

View Articletitled, Interaction Phenomena of High Frequency Pulsed Blowing in LP Turbine-Like Boundary Layers at High Speed Test Conditions

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Topics: Boundary layers , Turbines , Flow (Dynamics) , Actuators , Flow control , Pressure , Suction , Flat plates , Flow separation , Mach number

Aerodynamic and Mechanical Analyses on Manufacturing Variations of a Turbine Blade Row

Jong-Shang Liu, Douglas X. Zhu, Bryon Lew, Aaron Daniel Rodriguez

GT 2018; V02BT41A008https://doi.org/10.1115/GT2018-75536

Abstract

View Articletitled, Aerodynamic and Mechanical Analyses on Manufacturing Variations of a Turbine Blade Row

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Topics: Manufacturing , Turbine blades , Hardware , Durability , Geometry , Inspection , Machining , Design , Solid models , Airfoils

Surface Roughness Impact on Secondary Flow and Losses in a Turbine Exhaust Casing

Isak Jonsson, Valery Chernoray, Borja Rojo

GT 2018; V02BT41A009https://doi.org/10.1115/GT2018-75541

Abstract

View Articletitled, Surface Roughness Impact on Secondary Flow and Losses in a Turbine Exhaust Casing

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Topics: Exhaust systems , Flow (Dynamics) , Surface roughness , Turbines , Pressure , Probes , Reynolds number , Suction , Boundary layers , Computational fluid dynamics

Steady CFD Simulation of a High Pressure Turbine Rotor With Hub and Shroud Purge Flow

Wolfgang Sanz, Stefan Zerobin, Manfred Egger, Pascal Bader, Paul Pieringer, Emil Göttlich, Franz Heitmeir

GT 2018; V02BT41A010https://doi.org/10.1115/GT2018-75642

Abstract

View Articletitled, Steady CFD Simulation of a High Pressure Turbine Rotor With Hub and Shroud Purge Flow

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Topics: Computational fluid dynamics , Flow (Dynamics) , High pressure (Physics) , Rotors , Simulation , Turbines , Vortices , Leakage , Vorticity , Boundary layers

Prediction of Secondary Flow Features in a Low Pressure Turbine

Pawel Jonak, Tomasz Borzecki, Maciej Konopa, Slawomir Kubacki

GT 2018; V02BT41A011https://doi.org/10.1115/GT2018-75673

Abstract

View Articletitled, Prediction of Secondary Flow Features in a Low Pressure Turbine

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Topics: Flow (Dynamics) , Pressure , Turbines , Struts (Engineering) , Aircraft engines , Boundary layers , Computational fluid dynamics , Eddies (Fluid dynamics) , Reynolds-averaged Navier–Stokes equations , Simulation

Investigation of Thermal Effect on Bypass Transition on a High-Pressure Turbine Guide Vane

Tânia S. Cação Ferreira, Nikolaos Vasilakopoulos, Tony Arts

GT 2018; V02BT41A012https://doi.org/10.1115/GT2018-75676

Abstract

View Articletitled, Investigation of Thermal Effect on Bypass Transition on a High-Pressure Turbine Guide Vane

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Topics: Guide vanes , High pressure (Physics) , Temperature effects , Turbines , Temperature , Heat flux , Mach number , Airfoils , Analog circuits , Chords (Trusses)

The Role of Vortex Shedding in the Trailing Edge Loss of Transonic Turbine Blades

A. P. Melzer, G. Pullan

GT 2018; V02BT41A013https://doi.org/10.1115/GT2018-75707

Abstract

View Articletitled, The Role of Vortex Shedding in the Trailing Edge Loss of Transonic Turbine Blades

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Topics: Turbine blades , Vortex shedding , Blades , Boundary layers , Density , Flow (Dynamics) , Mach number , Reynolds number , Shapes , Shock (Mechanics)

Large Eddy Simulations of a Low-Pressure Turbine: Roughness Modeling and the Effects on Boundary Layer Transition and Losses

F. Hammer, Neil D. Sandham, Richard D. Sandberg

GT 2018; V02BT41A014https://doi.org/10.1115/GT2018-75796

Abstract

View Articletitled, Large Eddy Simulations of a Low-Pressure Turbine: Roughness Modeling and the Effects on Boundary Layer Transition and Losses

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Topics: Boundary layers , Large eddy simulation , Modeling , Pressure , Surface roughness , Turbines , Boundary layer turbulence , Flow (Dynamics) , Blades , Cascades (Fluid dynamics)

Using Turbulence Intensity and Reynolds Number to Predict Flow Separation on a Highly Loaded, Low-Pressure Gas Turbine Blade at Low Reynolds Numbers

Kenneth Van Treuren, Tyler Pharris, Olivia Hirst

GT 2018; V02BT41A015https://doi.org/10.1115/GT2018-75976

Abstract

View Articletitled, Using Turbulence Intensity and Reynolds Number to Predict Flow Separation on a Highly Loaded, Low-Pressure Gas Turbine Blade at Low Reynolds Numbers

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Topics: Blades , Flow separation , Gas turbines , Pressure , Reynolds number , Turbulence , Flow (Dynamics) , Turbines , Temperature , Turbine blades

Aero Derivative Mechanical Drive Gas Turbines: The Design of Intermediate Pressure Turbines

Alberto Scotti Del Greco, Vittorio Michelassi, Stefano Francini, Daniele Di Benedetto, Mahendran Manoharan

GT 2018; V02BT41A016https://doi.org/10.1115/GT2018-76036

Abstract

View Articletitled, Aero Derivative Mechanical Drive Gas Turbines: The Design of Intermediate Pressure Turbines

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Topics: Design , Gas turbines , Mechanical drives , Pressure , Turbines , Engines , Aircraft engines , Compressors , Flow (Dynamics) , Liquefied natural gas

Non-Axisymmetric Endwall Profiling of a Stator Row in the Presence of the Rotor in a High Pressure Turbine

Abdul Rehman, Bo Liu, Zhenzhe Na, Hao Cheng

GT 2018; V02BT41A017https://doi.org/10.1115/GT2018-76070

Abstract

View Articletitled, Non-Axisymmetric Endwall Profiling of a Stator Row in the Presence of the Rotor in a High Pressure Turbine

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Topics: High pressure (Physics) , Rotors , Stators , Turbines , Design , Flow (Dynamics) , Optimization , Artificial neural networks , Axial flow , Computer software

The Influence of Different Endwall Contouring Locations on the Secondary Flow Losses in a Highly Loaded Low Pressure Turbine

Wenhua Duan, Weiyang Qiao, Zuojun Wei, Jian Liu, Haoyi Cheng

GT 2018; V02BT41A018https://doi.org/10.1115/GT2018-76159

Abstract

View Articletitled, The Influence of Different Endwall Contouring Locations on the Secondary Flow Losses in a Highly Loaded Low Pressure Turbine

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Topics: Flow (Dynamics) , Pressure , Turbines , Airfoils , Bubbles , Cascades (Fluid dynamics) , Separation (Technology) , Suction

Detailed Analysis of Boundary Layer Control by Fluidic Oscillators on a Highly Loaded Profile

Julia Kurz, Reinhard Niehuis

GT 2018; V02BT41A019https://doi.org/10.1115/GT2018-76174

Abstract

View Articletitled, Detailed Analysis of Boundary Layer Control by Fluidic Oscillators on a Highly Loaded Profile

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Topics: Boundary layers , Flow control , Flow separation , Separation (Technology) , Suction , Cascades (Fluid dynamics) , Pressure , Pressure gradient , Reynolds number , Spectra (Spectroscopy)

LES and RANS Analysis of the End-Wall Flow in a Linear LPT Cascade: Part I — Flow and Secondary Vorticity Fields Under Varying Inlet Condition

R. Pichler, Yaomin Zhao, R. D. Sandberg, V. Michelassi, R. Pacciani, M. Marconcini, A. Arnone

GT 2018; V02BT41A020https://doi.org/10.1115/GT2018-76233

Abstract

View Articletitled, LES and RANS Analysis of the End-Wall Flow in a Linear LPT Cascade: Part I — Flow and Secondary Vorticity Fields Under Varying Inlet Condition

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Topics: Cascades (Fluid dynamics) , Flow (Dynamics) , Reynolds-averaged Navier–Stokes equations , Vorticity , Boundary layers , Blades , Design , Vortices , Computational fluid dynamics , Engineering simulation

Large Eddy Simulations of Separated Boundary Layer With Pressure Gradient and Heat Transfer

Yifei Wu, Weihao Zhang, Zhengping Zou, Jiang Chen

GT 2018; V02BT41A021https://doi.org/10.1115/GT2018-76338

Abstract

View Articletitled, Large Eddy Simulations of Separated Boundary Layer With Pressure Gradient and Heat Transfer

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Topics: Boundary layers , Heat transfer , Large eddy simulation , Pressure gradient , Vortices , Pressure , Bubbles , Separation (Technology) , Suction , Turbine blades

Aerodynamic Measurements and Analysis in a First Stage Nozzle Guide Vane Passage With Combustor Liner Cooling, Slot Film Cooling and Endwall Contouring

Mahmood H. Alqefl, Yong W. Kim, Hee-Koo Moon, Luzeng Zhang, Terrence W. Simon

GT 2018; V02BT41A022https://doi.org/10.1115/GT2018-76345

Abstract

View Articletitled, Aerodynamic Measurements and Analysis in a First Stage Nozzle Guide Vane Passage With Combustor Liner Cooling, Slot Film Cooling and Endwall Contouring

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Topics: Combustion chambers , Cooling , Film cooling , Nozzle guide vanes , Flow (Dynamics) , Coolants , Cascades (Fluid dynamics) , Vorticity , Turbines , Turbulence

An Experimental and Numerical Study of Tip-Leakage Flows in an Idealized Turbine Tip Gap at High Mach Numbers

Maximilian Passmann, Stefan aus der Wiesche, Franz Joos

GT 2018; V02BT41A023https://doi.org/10.1115/GT2018-76366

Abstract

View Articletitled, An Experimental and Numerical Study of Tip-Leakage Flows in an Idealized Turbine Tip Gap at High Mach Numbers

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Topics: Flow (Dynamics) , Leakage , Mach number , Turbines , Blades , Shock (Mechanics) , Clearances (Engineering) , Leakage flows , Organic Rankine cycle , Vortices

LES and RANS Analysis of the End-Wall Flow in a Linear LPT Cascade With Variable Inlet Conditions: Part II — Loss Generation

Michele Marconcini, Roberto Pacciani, Andrea Arnone, Vittorio Michelassi, Richard Pichler, Yaomin Zhao, Richard Sandberg

GT 2018; V02BT41A024https://doi.org/10.1115/GT2018-76450

Abstract

View Articletitled, LES and RANS Analysis of the End-Wall Flow in a Linear LPT Cascade With Variable Inlet Conditions: Part II — Loss Generation

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Topics: Cascades (Fluid dynamics) , Flow (Dynamics) , Reynolds-averaged Navier–Stokes equations , Boundary layers , Design , Blades , Pressure , Turbines , Vortices , Computational fluid dynamics

Numerical Study of a Linear Cascade With Upstream Cavity Using Various Rim-Seal Geometries and Purge Rates

Maxime Fiore, Nicolas Gourdain, Jean-François Boussuge, Eric Lippinois

GT 2018; V02BT41A025https://doi.org/10.1115/GT2018-76615

Abstract

View Articletitled, Numerical Study of a Linear Cascade With Upstream Cavity Using Various Rim-Seal Geometries and Purge Rates

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Topics: Cascades (Fluid dynamics) , Cavities , Flow (Dynamics) , Geometry , Blades , Clearances (Engineering) , Pressure , Annulus , Dampers , Gas turbines

Tip Leakage Flow Reduction of a Linear Turbine Cascade Using String-Type DBD Plasma Actuators

Takayuki Matsunuma, Takehiko Segawa

GT 2018; V02BT41A026https://doi.org/10.1115/GT2018-76680

Abstract

View Articletitled, Tip Leakage Flow Reduction of a Linear Turbine Cascade Using String-Type DBD Plasma Actuators

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Topics: Actuators , Cascades (Fluid dynamics) , Leakage flows , Plasmas (Ionized gases) , String , Turbines , Blades , Electrodes , Reynolds number , Displacement

Secondary Flows in LPT Cascades: Numerical and Experimental Investigation of the Impact of the Inner Part of the Boundary Layer

Matteo Giovannini, Filippo Rubechini, Michele Marconcini, Daniele Simoni, Vianney Yepmo, Francesco Bertini

GT 2018; V02BT41A027https://doi.org/10.1115/GT2018-76737

Abstract

View Articletitled, Secondary Flows in LPT Cascades: Numerical and Experimental Investigation of the Impact of the Inner Part of the Boundary Layer

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Topics: Boundary layers , Flow (Dynamics) , Cascades (Fluid dynamics) , Design , Pressure , Shapes , Turbines , Computational fluid dynamics , Engines , Reynolds-averaged Navier–Stokes equations

Shrouded CMC Rotor Blades for High Pressure Turbine Applications

Robert J. Boyle, Lucas M. Agricola, Ankur H. Parikh, Ali A. Ameri, Vinod K. Nagpal

GT 2018; V02BT41A028https://doi.org/10.1115/GT2018-76827

Abstract

View Articletitled, Shrouded CMC Rotor Blades for High Pressure Turbine Applications

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Topics: Blades , Ceramic matrix composites , High pressure (Physics) , Rotors , Turbines , Stress , Pressure , Density , Clearances (Engineering) , Metals

Turbopump Booster Turbine Performance: Comparison Between Monophase and Multiphase Flows Using CFD

Luiz Henrique Lindquist Whitacker, Jesuino Takachi Tomita, Cleverson Bringhenti

GT 2018; V02BT41A029https://doi.org/10.1115/GT2018-76879

Abstract

View Articletitled, Turbopump Booster Turbine Performance: Comparison Between Monophase and Multiphase Flows Using CFD

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Topics: Computational fluid dynamics , Multiphase flow , Turbines , Cavitation , Simulation , Design , Engines , Propellants , Blades , Clearances (Engineering)

An Experimental Study of Using Vortex Generators As Tip Leakage Flow Interrupters in an Axial Flow Turbine Stage

Veerandra C. Andichamy, Gohar T. Khokhar, Cengiz Camci

GT 2018; V02BT41A030https://doi.org/10.1115/GT2018-76994

Abstract

View Articletitled, An Experimental Study of Using Vortex Generators As Tip Leakage Flow Interrupters in an Axial Flow Turbine Stage

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Topics: Axial flow , Generators , Leakage flows , Turbines , Vortices , Leakage , Suction , Blades , Flow (Dynamics) , Turbine blades

Scaling Sealing Effectiveness in a Stator-Rotor Cavity for Differing Blade Spans

Reid A. Berdanier, Iván Monge-Concepción, Brian F. Knisely, Michael D. Barringer, Karen A. Thole, Eric A. Grover

GT 2018; V02BT41A031https://doi.org/10.1115/GT2018-77105

Abstract

View Articletitled, Scaling Sealing Effectiveness in a Stator-Rotor Cavity for Differing Blade Spans

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Topics: Arches , Blades , Cavities , Rotors , Sealing (Process) , Stators , Flow (Dynamics) , Engines , Airfoils , Compressors

Implicit-LES Simulation of Variable-Speed Power Turbine Cascade for Low Free-Stream Turbulence Conditions

Ali Ameri

GT 2018; V02BT41A032https://doi.org/10.1115/GT2018-77120

Abstract

View Articletitled, Implicit-LES Simulation of Variable-Speed Power Turbine Cascade for Low Free-Stream Turbulence Conditions

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Topics: Cascades (Fluid dynamics) , Simulation , Turbines , Turbulence , Flow (Dynamics) , Blades , Pressure , Reynolds number , Design , Separation (Technology)

Redistribution of Total Temperature Through an Annular Turbine Nozzle Cascade

Joshua Szczudlak, Sara Rostami, Arman Mirhashemi, Scott Morris, Greg Sluyter, Kirk Gallier, Greg Laskowski, Jon Slepski

GT 2018; V02BT41A033https://doi.org/10.1115/GT2018-77281

Abstract

View Articletitled, Redistribution of Total Temperature Through an Annular Turbine Nozzle Cascade

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Topics: Cascades (Fluid dynamics) , Nozzles , Temperature , Turbines , Flow (Dynamics) , Pressure , Turbulence , Blades , Combustion chambers , Engineering simulation

Noise, Ducts, and Interactions

Study of Combustion Noise Generation in a Realistic Turbine Stage Configuration

C. Becerril, S. Moreau, L. Y. M. Gicquel

GT 2018; V02BT43A001https://doi.org/10.1115/GT2018-75062

Abstract

View Articletitled, Study of Combustion Noise Generation in a Realistic Turbine Stage Configuration

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Topics: Combustion , Noise (Sound) , Turbines , Temperature , Energy resources , Fluctuations (Physics) , Combustion chambers , Engines , Entropy , Inlet guide vanes

Compressive Sensing Approach for Aeroengine Fan Noise Mode Detection

Huanxian Bu, Wenjun Yu, Xun Huang

GT 2018; V02BT43A002https://doi.org/10.1115/GT2018-75141

Abstract

View Articletitled, Compressive Sensing Approach for Aeroengine Fan Noise Mode Detection

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Topics: Noise (Sound) , Sensors , Testing , Ducts , Flow (Dynamics) , Probability , Spin (Aerodynamics) , Spinning (Textile) , Test facilities , Wind tunnels

Numerical Investigations of an Axial Exhaust Diffuser Coupling the Last Stage of a Generic Gas Turbine

Marius Mihailowitsch, Markus Schatz, Damian M. Vogt

GT 2018; V02BT43A003https://doi.org/10.1115/GT2018-75185

Abstract

View Articletitled, Numerical Investigations of an Axial Exhaust Diffuser Coupling the Last Stage of a Generic Gas Turbine

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Topics: Diffusers , Exhaust systems , Gas turbines , Turbines , Stress , Flow (Dynamics) , Leakage , Leakage flows , Pressure , Design

Beamforming and Compressive Sensing Mode Detection of Duct Acoustic Source by Sensor Array

Wenjun Yu, Huanxian Bu, Xun Huang

GT 2018; V02BT43A004https://doi.org/10.1115/GT2018-75260

Abstract

View Articletitled, Beamforming and Compressive Sensing Mode Detection of Duct Acoustic Source by Sensor Array

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Topics: Acoustics , Ducts , Sensors , Testing , Noise (Sound) , Design , Commercial air transport , Computer simulation , Electromagnetic scattering , Jets

Effects of Cavity Purge Flow on Intermediate Turbine Duct Flowfield

Jun Liu, Qiang Du, Guang Liu, Pei Wang, Hongrui Liu, Qingzong Xu

GT 2018; V02BT43A005https://doi.org/10.1115/GT2018-76324

Abstract

View Articletitled, Effects of Cavity Purge Flow on Intermediate Turbine Duct Flowfield

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Topics: Cavities , Ducts , Flow (Dynamics) , Turbines , Engines , Design , Pressure , Blades , Diffusion (Physics) , Experimental methods

Research on Accuracy of Flowing Field Based on Numerical Simulation for Tonal Noise Prediction in Axial Compressor

M. R. Song, B. Yang, G. M. Dong, X. L. Liu, J. Q. Wang, H. Xie, Z. H. Lu

GT 2018; V02BT43A006https://doi.org/10.1115/GT2018-76382

Abstract

View Articletitled, Research on Accuracy of Flowing Field Based on Numerical Simulation for Tonal Noise Prediction in Axial Compressor

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Topics: Compressors , Computer simulation , Noise (Sound) , Pressure , Blades , Pressure sensors , Rotors

Numerical Flow Field Analysis in a Highly Bent Intake Duct

Jakob P. Haug, Rudolf P. M. Rademakers, Marcel Stößel, Reinhard Niehuis

GT 2018; V02BT43A007https://doi.org/10.1115/GT2018-76633

Abstract

View Articletitled, Numerical Flow Field Analysis in a Highly Bent Intake Duct

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Topics: Ducts , Flow (Dynamics) , Engines , Flow separation , Shapes , Vortices , Aerodynamics , Aircraft , Compressors , Computational fluid dynamics

Numerical and Experimental Study on Bleed Impact on Intermediate Compressor Duct Performance

Elias M. V. Siggeirsson, Niklas Andersson, Fredrik Wallin

GT 2018; V02BT43A008https://doi.org/10.1115/GT2018-76649

Abstract

View Articletitled, Numerical and Experimental Study on Bleed Impact on Intermediate Compressor Duct Performance

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Topics: Compressors , Ducts , Pressure , Computational fluid dynamics , Engineering simulation , Flow (Dynamics) , Pipes , Simulation , Aerospace industry , Aircraft engines

APU-Noise Reduction by Novel Muffler Concepts

Karsten Knobloch, Lars Enghardt, Friedrich Bake

GT 2018; V02BT43A009https://doi.org/10.1115/GT2018-76762

Abstract

View Articletitled, APU-Noise Reduction by Novel Muffler Concepts

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Topics: Noise (Sound) , Silencers , Cavities , Design , Flow (Dynamics) , Absorption , Acoustics , Damping , Ducts , Microphones

Impact of Impeller Casing Treatment on the Acoustics of a Small High Speed Centrifugal Compressor

Sidharath Sharma, Jorge García-Tíscar, John M. Allport, Martyn L. Jupp, Ambrose K. Nickson

GT 2018; V02BT43A010https://doi.org/10.1115/GT2018-76815

Abstract

View Articletitled, Impact of Impeller Casing Treatment on the Acoustics of a Small High Speed Centrifugal Compressor

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Topics: Acoustics , Compressors , Impellers , Blades , Design , Flow (Dynamics) , Aerodynamic noise , Delays , Dipoles (Electromagnetism) , Ducts

Numerical and Experimental Investigation of Acoustic Characteristics of Model Ultra High Bypass Ratio Counter Rotating Fan

Anton Rossikhin, Iaroslav Druzhinin, Iurii Khaletskii, Victor Mileshin

GT 2018; V02BT43A011https://doi.org/10.1115/GT2018-76878

Abstract

View Articletitled, Numerical and Experimental Investigation of Acoustic Characteristics of Model Ultra High Bypass Ratio Counter Rotating Fan

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Topics: Acoustics , Rotation , Rotors , Noise (Sound) , Aircraft engines , Microphones , Nozzles , Simulation

Continuous-Scan Phased Array Measurement Methods for Turbofan Engine Acoustic Testing

Parthiv N. Shah, Andrew White, Dan Hensley, Dimitri Papamoschou, Håvard Vold

GT 2018; V02BT43A012https://doi.org/10.1115/GT2018-77033

Abstract

View Articletitled, Continuous-Scan Phased Array Measurement Methods for Turbofan Engine Acoustic Testing

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Topics: Acoustics , Engines , Testing , Turbofans , Sensors , Algorithms , Noise (Sound) , Data acquisition systems , Delays , Density

Radial Turbomachinery Aerodynamics

Variable Geometry Turbine Nozzle Design for High Expansion Ratios

Hua Chen, Lei Huang

GT 2018; V02BT44A001https://doi.org/10.1115/GT2018-75013

Abstract

View Articletitled, Variable Geometry Turbine Nozzle Design for High Expansion Ratios

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Topics: Design , Geometry , Nozzles , Turbines , Shock (Mechanics) , Engines , Flow (Dynamics) , High cycle fatigue , Optimization , Shock waves

Design of a Transonic High Flow Coefficient Centrifugal Compressor by Using Advanced Design Methods

David Wittrock, Oliver Reutter, Eberhard Nicke, Thomas Schmidt, Jan Klausmann

GT 2018; V02BT44A002https://doi.org/10.1115/GT2018-75024

Abstract

View Articletitled, Design of a Transonic High Flow Coefficient Centrifugal Compressor by Using Advanced Design Methods

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Topics: Compressors , Design , Design methodology , Flow (Dynamics) , Blades , Diesel , Turbochargers , Diffusers , Computational fluid dynamics , Design engineering

A Numerical and Experimental Investigation of the Impact of Mixed Flow Turbine Inlet Cone Angle and Inlet Blade Angle

Thomas Leonard, Stephen Spence, Dietmar Filsinger, Andre Starke

GT 2018; V02BT44A003https://doi.org/10.1115/GT2018-75096

Abstract

View Articletitled, A Numerical and Experimental Investigation of the Impact of Mixed Flow Turbine Inlet Cone Angle and Inlet Blade Angle

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Topics: Blades , Flow (Dynamics) , Turbines , Rotors , Design , Computer simulation , Geometry , Transients (Dynamics) , Automotive engines , Computational fluid dynamics

The Interaction Between Inlet Guide Vanes and the Impeller Recirculating Flow in a Centrifugal Compressor and the Resulting Impact on Flow Range

Xiangjun Li, Stephen Spence, Yanhui Wu

GT 2018; V02BT44A004https://doi.org/10.1115/GT2018-75097

Abstract

View Articletitled, The Interaction Between Inlet Guide Vanes and the Impeller Recirculating Flow in a Centrifugal Compressor and the Resulting Impact on Flow Range

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Topics: Compressors , Flow (Dynamics) , Impellers , Inlet guide vanes , Surges , Inflow , Computational fluid dynamics , Diffusers , Engineering simulation , Pressure

A Three-Zone Modelling Approach for Centrifugal Compressor Slip Factor Prediction

Charles Stuart, Stephen Spence, Dietmar Filsinger, Andre Starke, Sung In Kim

GT 2018; V02BT44A005https://doi.org/10.1115/GT2018-75324

Abstract

View Articletitled, A Three-Zone Modelling Approach for Centrifugal Compressor Slip Factor Prediction

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Topics: Compressors , Modeling , Flow (Dynamics) , Impellers , Computational fluid dynamics , Wakes , Design , Engineering simulation , Engines , Geometry

Influences of Tip Leakage Flows Discharged From Main and Splitter Blades on Flow Field in Transonic Centrifugal Compressor Stage

Masanao Kaneko, Hoshio Tsujita

GT 2018; V02BT44A006https://doi.org/10.1115/GT2018-75345

Abstract

View Articletitled, Influences of Tip Leakage Flows Discharged From Main and Splitter Blades on Flow Field in Transonic Centrifugal Compressor Stage

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Topics: Blades , Compressors , Flow (Dynamics) , Leakage flows , Vortices , Clearances (Engineering) , Leakage , Diffusers , Impellers , Suction

Experimental Application of a Boundary Layer Control Strategy in a Radial Vaned Diffuser

V. Moënne-Loccoz, I. Trébinjac, P. Laucher

GT 2018; V02BT44A007https://doi.org/10.1115/GT2018-75365

Abstract

View Articletitled, Experimental Application of a Boundary Layer Control Strategy in a Radial Vaned Diffuser

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Topics: Boundary layers , Diffusers , Suction , Compressors , Design , Surges , Engines

Axial Turbine Design for a Twin-Turbine Heavy-Duty Turbocharger Concept

Nicholas Anton, Magnus Genrup, Carl Fredriksson, Per-Inge Larsson, Anders Christiansen-Erlandsson

GT 2018; V02BT44A008https://doi.org/10.1115/GT2018-75453

Abstract

View Articletitled, Axial Turbine Design for a Twin-Turbine Heavy-Duty Turbocharger Concept

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Topics: Design , Turbines , Turbochargers , Engines , Flow (Dynamics) , Simulation , Durability , Geometry , Blades , Computational fluid dynamics

The Impact of Inlet Distortion and Reduced Frequency on the Performance of Centrifugal Compressors

A. Grimaldi, V. Michelassi

GT 2018; V02BT44A009https://doi.org/10.1115/GT2018-75494

Abstract

View Articletitled, The Impact of Inlet Distortion and Reduced Frequency on the Performance of Centrifugal Compressors

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Topics: Compressors , Flow (Dynamics) , Design , Impellers , Liquefied natural gas , Aerodynamics , Blades , Databases , Theoretical analysis , Turbines

Performance Characterization of a Twin Scroll Volute for Turbocharging Applications

Carlo Cravero, Mario La Rocca, Andrea Ottonello

GT 2018; V02BT44A010https://doi.org/10.1115/GT2018-75522

Abstract

View Articletitled, Performance Characterization of a Twin Scroll Volute for Turbocharging Applications

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Topics: Computational fluid dynamics , Computer simulation , Databases , Design , Engines , Modeling , Optimization , Performance characterization , Rotors , Turbines

Design Point Efficiency of Radial Turbines

Graham D. Cox

GT 2018; V02BT44A011https://doi.org/10.1115/GT2018-75533

Abstract

View Articletitled, Design Point Efficiency of Radial Turbines

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Topics: Design , Turbines , Flow (Dynamics) , Mach number , Blades , Databases , Wheels , Cavities , Computational fluid dynamics , Geometry

3D Computational Analysis of a Compressor for Heavy Duty Truck Engine Turbochargers

Matthias Abel, Peter Newton, Ricardo F. Martinez-Botas, Michael Wöhr, Markus Müller, Johannes Leweux

GT 2018; V02BT44A012https://doi.org/10.1115/GT2018-75688

Abstract

View Articletitled, 3D Computational Analysis of a Compressor for Heavy Duty Truck Engine Turbochargers

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Topics: Compressors , Engines , Trucks , Turbochargers , Computational fluid dynamics , Diffusers , Pressure , Steady state , Flow (Dynamics) , Fuel consumption

Investigation on the Stall Inception Circumferential Position and Stall Process Behavior in a Centrifugal Compressor With Volute

Hanzhi Zhang, Ce Yang, Dengfeng Yang, Wenli Wang, Changmao Yang, Mingxu Qi

GT 2018; V02BT44A013https://doi.org/10.1115/GT2018-75765

Abstract

View Articletitled, Investigation on the Stall Inception Circumferential Position and Stall Process Behavior in a Centrifugal Compressor With Volute

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Topics: Compressors , Stall inception , Pressure , Impellers , Vortices , Blades , Engineering simulation , Flow (Dynamics) , Simulation , Clearances (Engineering)

A Study on Matching Between Centrifugal Compressor Impeller and Low Solidity Diffuser and its Extension to Vaneless Diffuser

Hideaki Tamaki

GT 2018; V02BT44A014https://doi.org/10.1115/GT2018-75902

Abstract

View Articletitled, A Study on Matching Between Centrifugal Compressor Impeller and Low Solidity Diffuser and its Extension to Vaneless Diffuser

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Topics: Compressor impellers , Diffusers , Vaneless diffusers , Flow (Dynamics) , High pressure (Physics) , Pressure , Surges , Compressors , Design , Flow visualization

Numerical Investigation of the Circumferential Pressure Distortion Induced by a Centrifugal Compressor’s External Volute

Thomas Ceyrowsky, Andre Hildebrandt, Rüdiger Schwarze

GT 2018; V02BT44A015https://doi.org/10.1115/GT2018-75919

Abstract

View Articletitled, Numerical Investigation of the Circumferential Pressure Distortion Induced by a Centrifugal Compressor’s External Volute

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Topics: Pressure , Impellers , Diffusers , Computational fluid dynamics , Blades , Geometry , Nozzles

1D and 3D-Design Strategies for Pressure Slope Optimization of High-Flow Transonic Centrifugal Compressor Impellers

A. Hildebrandt, T. Ceyrowsky

GT 2018; V02BT44A016https://doi.org/10.1115/GT2018-76154

Abstract

View Articletitled, 1D and 3D-Design Strategies for Pressure Slope Optimization of High-Flow Transonic Centrifugal Compressor Impellers

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Topics: Compressor impellers , Design , Flow (Dynamics) , Optimization , Pressure , Impellers , Computational fluid dynamics , Compressors , Databases , Blades

Characterization and Impact of Secondary Flows in a Discrete Passage Centrifugal Compressor Diffuser

David W. Erickson, Choon S. Tan, Michael Macrorie

GT 2018; V02BT44A017https://doi.org/10.1115/GT2018-76231

Abstract

View Articletitled, Characterization and Impact of Secondary Flows in a Discrete Passage Centrifugal Compressor Diffuser

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Topics: Compressors , Diffusers , Flow (Dynamics) , Vortices , Separation (Technology) , Pressure , Boundary layers , Suction , Computation , Flow separation

Measurement of Unsteady Pressure Field in a Turbocharger Compressor Using Pressure-Sensitive Paint

Takaaki Kitamura, Masaharu Kameda, Wataru Watanabe, Kazutaka Horimoto, Kenta Akimoto, Akihito Akahori

GT 2018; V02BT44A018https://doi.org/10.1115/GT2018-76267

Abstract

View Articletitled, Measurement of Unsteady Pressure Field in a Turbocharger Compressor Using Pressure-Sensitive Paint

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Topics: Compressors , Paints , Pressure , Turbochargers , Impellers , Diffusers , Flow (Dynamics) , Signals , Temperature , Blades

Numerical Study on Interaction of Tip Synthetic Jet With Tip Leakage Flow in Centrifugal Impeller

Wenlin Huang, Huijing Zhao, Zhiheng Wang, Guang Xi, Haijun Liu

GT 2018; V02BT44A019https://doi.org/10.1115/GT2018-76330

Abstract

View Articletitled, Numerical Study on Interaction of Tip Synthetic Jet With Tip Leakage Flow in Centrifugal Impeller

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Topics: Impellers , Leakage flows , Blades , Flow (Dynamics) , Excitation , Clearances (Engineering) , Momentum , Numerical analysis

Optimization of Fuel Two-Stage Screw Centrifugal Pump of Rocket Powerful Turbopump Unit

Vasilii Zubanov, Andrei Volkov, Valeriy Matveev, Grigorii Popov, Oleg Baturin

GT 2018; V02BT44A020https://doi.org/10.1115/GT2018-76400

Abstract

View Articletitled, Optimization of Fuel Two-Stage Screw Centrifugal Pump of Rocket Powerful Turbopump Unit

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Topics: Centrifugal pumps , Fuels , Optimization , Rockets , Screws , Pumps , Ducts , Pressure , Flow (Dynamics) , Geometry

Critical Suction Peformance Test of Turbopump Assembly for a Liquid-Propellant Rocket Engine

Hang Gi Lee, Ju Hyun Shin, Suk Hwan Yoon, Dae Jin Kim, Jun Hwan Bae, Chang Ho Choi

GT 2018; V02BT44A021https://doi.org/10.1115/GT2018-76430

Abstract

View Articletitled, Critical Suction Peformance Test of Turbopump Assembly for a Liquid-Propellant Rocket Engine

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Topics: Manufacturing , Propellants , Rocket engines , Suction , Pumps , Cavitation , Pressure , Water , Design , Nitrogen

Effect of Impeller Outlet Flow Affected by Casing Treatment on Rotating Stall in Vane-Less Diffuser in Centrifugal Turbomachinery

Kazuhiro Tsukamoto, Shohei Suto, Kiyotaka Hiradate, Yasushi Shinkawa

GT 2018; V02BT44A022https://doi.org/10.1115/GT2018-76461

Abstract

View Articletitled, Effect of Impeller Outlet Flow Affected by Casing Treatment on Rotating Stall in Vane-Less Diffuser in Centrifugal Turbomachinery

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Topics: Diffusers , Flow (Dynamics) , Impellers , Turbomachinery , Pressure , Compressors , Vibration , Bearings , Blades , Fluctuations (Physics)

Non-Uniform Tip Clearance Effects on Turbocharger Compressor Performance

Richard A. Adjei, Weizhe Wang, Di Peng, Yingzheng Liu, Takahiro Bamba

GT 2018; V02BT44A023https://doi.org/10.1115/GT2018-76837

Abstract

View Articletitled, Non-Uniform Tip Clearance Effects on Turbocharger Compressor Performance

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Topics: Clearances (Engineering) , Compressors , Turbochargers , Diffusers , Flow (Dynamics) , Impellers , Experimental design , Design , Diffusion (Physics) , Fluid dynamics

Unsteady Responses of the Impeller of a Centrifugal Compressor Exposed to Pulsating Backpressure

Mengying Shu, Mingyang Yang, Ricardo F. Martinez-Botas, Kangyao Deng, Lei Shi

GT 2018; V02BT44A024https://doi.org/10.1115/GT2018-76851

Abstract

View Articletitled, Unsteady Responses of the Impeller of a Centrifugal Compressor Exposed to Pulsating Backpressure

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Topics: Compressors , Impellers , Flow (Dynamics) , Engines , Simulation , Turbochargers , Airfoils , Boundary-value problems , Computational fluid dynamics , Cylinders

Rotating Instabilities Versus Rotating Stall in a High-Speed Centrifugal Compressor

Julissa Grondin, Isabelle Trébinjac, Nicolas Rochuon

GT 2018; V02BT44A025https://doi.org/10.1115/GT2018-76916

Abstract

View Articletitled, Rotating Instabilities Versus Rotating Stall in a High-Speed Centrifugal Compressor

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Topics: Compressors , Vortices , Blades , Impellers , Separation (Technology) , Engineering simulation , High pressure (Physics) , Leakage flows , Pressure , Reynolds-averaged Navier–Stokes equations

Analytical and Experimental Results of a Novel Single-Stage Centrifugal Compressor With Economizer Injection

William T. Cousins, Lei Yu, Vishnu Sishtla, Feng Shen

GT 2018; V02BT44A026https://doi.org/10.1115/GT2018-76967

Abstract

View Articletitled, Analytical and Experimental Results of a Novel Single-Stage Centrifugal Compressor With Economizer Injection

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Topics: Compressors , Cycles , Design , HVAC equipment , Water , Air conditioning , Computational fluid dynamics , Condensers (steam plant) , Diffusers , Energy consumption

Investigation Into the Impact of Span-Wise Flow Distribution on the Performance of a Mixed Flow Turbine

Samuel P. Lee, Simon M. Barrans, Martyn L. Jupp, Ambrose K. Nickson

GT 2018; V02BT44A027https://doi.org/10.1115/GT2018-76992

Abstract

View Articletitled, Investigation Into the Impact of Span-Wise Flow Distribution on the Performance of a Mixed Flow Turbine

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Topics: Flow (Dynamics) , Turbines , Blades , Engineering simulation , Engines , Fibers , Simulation , Turbochargers , Automotive industry , Axial flow

A Numerical Analysis of the Effects of Liquid Carryover on the Performance of a Two-Stage Centrifugal Compressor

Chaitanya V. Halbe, Walter F. O’Brien, William T. Cousins, Vishnu Sishtla

GT 2018; V02BT44A028https://doi.org/10.1115/GT2018-77015

Abstract

View Articletitled, A Numerical Analysis of the Effects of Liquid Carryover on the Performance of a Two-Stage Centrifugal Compressor

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Topics: Compressors , Numerical analysis , Drops , Flow (Dynamics) , Aerodynamics , Compression , Computational fluid dynamics , Computational methods , Design , Dynamics (Mechanics)

Assessment of Flow Control Strategies for Improving Centrifugal Compressor Efficiency

Farzad Ashrafi, Huu Duc Vo

GT 2018; V02BT44A029https://doi.org/10.1115/GT2018-77022

Abstract

View Articletitled, Assessment of Flow Control Strategies for Improving Centrifugal Compressor Efficiency

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Topics: Compressors , Flow control , Diffusers , Flow (Dynamics) , Impellers , Pipes , Aircraft engines , Axial flow , Computational fluid dynamics , Engineering simulation