Topics: Reynolds-averaged Navier–Stokes equations , Turbomachinery , Delay differential equations , Computational fluid dynamics , Simulation , Cavities , Flow (Dynamics) , Turbulence , Eddies (Fluid dynamics) , Large eddy simulation

Aero-Thermal Coupled Predictive Model for Preliminary Gas Turbine Blade Cooling Analysis

Wei Ba, Longgang Liu, Hong Liu

GT 2018; V02CT42A002doi:https://doi.org/10.1115/GT2018-75089

Abstract

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Topics: Blades , Cooling , Gas turbines , Design , Flow (Dynamics) , Boundary-value problems , Coolants , Film cooling , Temperature , Temperature distribution

Calculation of Intake-Fan-Bypass Interaction With a Fan Similarity Model

Mauro Carnevale, Feng Wang, Luca di Mare

GT 2018; V02CT42A003doi:https://doi.org/10.1115/GT2018-75115

Abstract

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Topics: Aircraft engines , Airfoils , Blades , Boundary-value problems , Cascades (Fluid dynamics) , Computation , Design , Diluents , Ducts , Engines

Source Term Based Modeling of Rotating Cavitation in Turbopumps

A. G. Vermes, C. Lettieri

GT 2018; V02CT42A004doi:https://doi.org/10.1115/GT2018-75194

Abstract

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Topics: Cavitation , Modeling , Cavities , Pumps , Design , Rocket engines , Vehicles , Combustion chambers , Computation , Engines

Robust Method to Solve Meanline Equations for Choked Flows

David Cadrecha, Jose M. Chaquet, Roque Corral, Vicente P. Timon

GT 2018; V02CT42A005doi:https://doi.org/10.1115/GT2018-75362

Abstract

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Topics: Flow (Dynamics) , Algebra , Boundary-value problems , Compressors , Mach number , Numerical analysis

Through-Flow Modeling of Single- and Two-Shaft Gas Turbines at Wide Operating Range

Alexander Wiedermann, Milan V. Petrovic

GT 2018; V02CT42A006doi:https://doi.org/10.1115/GT2018-75394

Abstract

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Topics: Flow (Dynamics) , Gas turbines , Modeling , Turbines , Compressors , Cooling , Design , Bifurcation , Boundary layers , Combustion

Development of Method and Computer Program for Multistage Axial Compressor Design: Part I — Mean Line Design and Example Cases

Milan Banjac, Milan V. Petrovic

GT 2018; V02CT42A007doi:https://doi.org/10.1115/GT2018-75410

Abstract

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Topics: Compressors , Computer software , Design , Flow (Dynamics) , Geometry , Optimization , Mach number , Optimization algorithms , Pressure , Rotors

Development of Method and Computer Program for Multistage Axial Compressor Design: Part II — Two-Dimensional Design and Validation Using CFD

Milan Banjac, Milan V. Petrovic

GT 2018; V02CT42A008doi:https://doi.org/10.1115/GT2018-75412

Abstract

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Topics: Compressors , Computational fluid dynamics , Computer software , Design , Flow (Dynamics) , Blades , Computation , Computers , Pressure , Radial flow

Development and Use of Machine-Learnt Algebraic Reynolds Stress Models for Enhanced Prediction of Wake Mixing in LPTs

Harshal D. Akolekar, Jack Weatheritt, Nicholas Hutchins, Richard D. Sandberg, Gregory Laskowski, Vittorio Michelassi

GT 2018; V02CT42A009doi:https://doi.org/10.1115/GT2018-75447

Abstract

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Topics: Algebra , Machinery , Stress , Wakes , Reynolds-averaged Navier–Stokes equations , Turbulence , Flow (Dynamics) , Algorithms , Anisotropy , Blades

Axial Compressor Performance Prediction Using Improved Streamline Curvature Approach

Tao Li, Yadong Wu, Hua Ouyang, Xiaoqing Qiang

GT 2018; V02CT42A010doi:https://doi.org/10.1115/GT2018-75450

Abstract

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Topics: Compressors , Computational fluid dynamics , Design , Flow (Dynamics) , Blades , Fittings , Internal flow , NASA , Performance evaluation , Pressure

CFD Study on the Influence of Geometric Parameters on the Aerodynamics Within an Ejector Injection System for Compressor Stabilization

Sebastian Brehm, Felix Kern, Reinhard Niehuis

GT 2018; V02CT42A011doi:https://doi.org/10.1115/GT2018-75466

Abstract

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Topics: Aerodynamics , Compressors , Computational fluid dynamics , Ejectors , Electrochemical impedance spectroscopy , Geometry , Design , Engineering simulation , Flow (Dynamics) , Nozzles

On the Development of Harmonic Balance Methods for Multiple Fundamental Frequencies

Laura Junge, Graham Ashcroft, Hans-Peter Kersken, Christian Frey

GT 2018; V02CT42A012doi:https://doi.org/10.1115/GT2018-75495

Abstract

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Topics: Aerodynamic flow , Blades , Computer simulation , Flow (Dynamics) , Fourier transforms , Modeling , Signals , Turbomachinery , Unsteady flow

Comparison of Various CFD Codes for LES Simulations of Turbomachinery: From Inviscid Vortex Convection to Multi-Stage Compressor

GT 2018; V02CT42A013doi:https://doi.org/10.1115/GT2018-75523

Abstract

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Topics: Compressors , Computational fluid dynamics , Convection , Simulation , Turbomachinery , Vortices , Engineering simulation , Numerical analysis , Reynolds-averaged Navier–Stokes equations

Mixing Losses in Steady and Unsteady Simulations of Turbomachinery Flows

Daniel Schlüß, Christian Frey

GT 2018; V02CT42A014doi:https://doi.org/10.1115/GT2018-75524

Abstract

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Topics: Engineering simulation , Flow (Dynamics) , Simulation , Turbomachinery , Unsteady flow , Blades , Computation , Entropy , Acoustics , Approximation

Correlations for the Prediction of Intermittency and Turbulent Spot Production Rate in Separated Flows

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

GT 2018; V02CT42A015doi:https://doi.org/10.1115/GT2018-75624

Abstract

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Topics: Flow (Dynamics) , Turbulence , Reynolds number , Separation (Technology) , Boundary layers , Bubbles , Dynamics (Mechanics) , Fittings , Particulate matter , Pressure gradient

Comparison of Linear and Nonlinear Frequency Domain Methods for Flutter Analysis

Hans-Peter Kersken, Graham Ashcroft, Christian Frey, Nina Wolfrum, Oliver Pütz

GT 2018; V02CT42A016doi:https://doi.org/10.1115/GT2018-75626

Abstract

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Topics: Flutter (Aerodynamics) , Blades , Turbomachinery , Algorithms , Gas turbines , Jet engines , Pressure , Stability , Turbines

Low Order Modelling for Fan and Outlet Guide Vanes in Aero-Engines

Jiahuan Cui, Rob Watson, Paul Tucker, Mark Wilson

GT 2018; V02CT42A017doi:https://doi.org/10.1115/GT2018-75660

Abstract

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Topics: Aircraft engines , Guide vanes , Modeling , Flow (Dynamics) , Design , Inflow , Accounting , Compression , Geometry , Pressure

Importance of Boundary Layer Transition in a High-Pressure Turbine Cascade Using LES

Luis M. Seguí, L. Y. M. Gicquel, F. Duchaine, J. de Laborderie

GT 2018; V02CT42A018doi:https://doi.org/10.1115/GT2018-75711

Abstract

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Topics: Boundary layers , Cascades (Fluid dynamics) , High pressure (Physics) , Turbines , Turbulence , Flow (Dynamics) , Heat flux , Heat transfer , Blades , Large eddy simulation

Large Eddy Simulations of a Highly Loaded Transonic Blade With Separated Flow

Mael Harnieh, Laurent Gicquel, Florent Duchaine

GT 2018; V02CT42A019doi:https://doi.org/10.1115/GT2018-75730

Abstract

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Topics: Blades , Flow (Dynamics) , Large eddy simulation , Turbulence , Pressure , Bubbles , Boundary layers , Design , Engineering simulation , High pressure (Physics)

High Fidelity Spectral/hp Element Methods for Turbomachinery

Andrea Cassinelli, Francesco Montomoli, Paolo Adami, Spencer J. Sherwin

GT 2018; V02CT42A020doi:https://doi.org/10.1115/GT2018-75733

Abstract

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Topics: Turbomachinery , Flow (Dynamics) , Cascades (Fluid dynamics) , Computer software , Design , Engineering simulation , Physics , Polynomials , Reynolds number , Simulation

Evaluation of Integral Turbulence Scale Through the Fan Stage of a Turbofan Using Hot Wire Anemometry and Large Eddy Simulation

Nicolas Odier, Florent Duchaine, Laurent Gicquel, Gabriel Staffelbach, Adrien Thacker, Nicolás García Rosa, Guillaume Dufour, Jens-Dominik Muller

GT 2018; V02CT42A021doi:https://doi.org/10.1115/GT2018-75741

Abstract

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Topics: Large eddy simulation , Turbofans , Turbulence , Wire , Aircraft engines , Fluctuations (Physics) , Spacetime , Spectra (Spectroscopy) , Stators , Turbomachinery

Assessment of Wall Modelling for Large Eddy Simulations of Turbomachinery

Jagadeesh Movva, Dimitrios Papadogiannis, Stéphane Hiernaux

GT 2018; V02CT42A022doi:https://doi.org/10.1115/GT2018-75773

Abstract

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Topics: Large eddy simulation , Modeling , Turbomachinery , Engineering simulation , Flow (Dynamics) , Simulation , Resolution (Optics) , Reynolds-averaged Navier–Stokes equations , Turbulence , Design

LES Investigation of Boussinesq Constitutive Relation Validity in a Corner Separation Flow

Jean-François Monier, Nicolas Poujol, Mathieu Laurent, Feng Gao, Jérôme Boudet, Stéphane Aubert, Liang Shao

GT 2018; V02CT42A023doi:https://doi.org/10.1115/GT2018-75792

Abstract

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Topics: Corners (Structural elements) , Flow (Dynamics) , Separation (Technology) , Tensors , Eddies (Fluid dynamics) , Stress tensors , Viscosity , Cascades (Fluid dynamics) , Compressors , Large eddy simulation

Improved Smith Chart for Axial Compressor Design

Mark R. Anderson

GT 2018; V02CT42A024doi:https://doi.org/10.1115/GT2018-75845

Abstract

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Topics: Compressors , Design , Flow (Dynamics) , Turbines , Clearances (Engineering) , Modeling , Optimization , Physics , Turbomachinery

Capturing Radial Mixing in Axial Compressors With CFD

Lorenzo Cozzi, Filippo Rubechini, Matteo Giovannini, Michele Marconcini, Andrea Arnone, Andrea Schneider, Pio Astrua

GT 2018; V02CT42A025doi:https://doi.org/10.1115/GT2018-75942

Abstract

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Topics: Compressors , Computational fluid dynamics , Flow (Dynamics) , Steady state , Clearances (Engineering) , Reynolds-averaged Navier–Stokes equations , Vorticity , Blades , Fluids , Accounting

Scale-Resolving Simulations of Low-Pressure Turbine Cascades With Wall Roughness Using a Spectral-Element Method

Anirban Garai, Laslo T. Diosady, Scott M. Murman, Nateri K. Madavan

GT 2018; V02CT42A026doi:https://doi.org/10.1115/GT2018-75982

Abstract

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Topics: Engineering simulation , Pressure , Simulation , Surface roughness , Turbines , Airfoils , Boundary layers , Separation (Technology) , Cascades (Fluid dynamics) , Ceramic matrix composites

On the Use of the Automatic Differentiation for Developing a Linear Harmonic Solver

Wei Zhang, Dingxi Wang, Xiuquan Huang, Tianxiao Yang, Hong Yan, Jianling Li

GT 2018; V02CT42A027doi:https://doi.org/10.1115/GT2018-76004

Abstract

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Topics: Computational fluid dynamics , Errors , Unsteady flow , Waves

Investigation of Spectral Vanishing Viscosity for Stabilizing and Accelerating Solution of Time Spectral Equation System

Hangkong Wu, Dingxi Wang, Xiuquan Huang, Hong Yan, Jianling Li

GT 2018; V02CT42A028doi:https://doi.org/10.1115/GT2018-76011

Abstract

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Topics: Viscosity , Flow (Dynamics) , Errors , Navier-Stokes equations , Stiffness , Unsteady flow

An Adaptive Harmonic Method for Unsteady Quasi-One-Dimensional Periodic Flow

Yalu Zhu, Jiaqi Luo, Feng Liu

GT 2018; V02CT42A029doi:https://doi.org/10.1115/GT2018-76144

Abstract

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Topics: Flow (Dynamics) , Pressure , Errors , Nozzles , Shock waves , Unsteady flow

Development of a Multi-Objective Preliminary Design Optimization Approach for Axial Flow Compressors

Youwei He, Jinju Sun, Peng Song, Xuesong Wang, Da Xu

GT 2018; V02CT42A030doi:https://doi.org/10.1115/GT2018-76155

Abstract

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Topics: Axial flow , Compressors , Design , Optimization , Airfoils , Algorithms , Flow (Dynamics) , Geometry , Pareto optimization

Computationally Efficient Modelling of Oil Jet-Breakup and Film Formation for Bearing Chamber Applications

Jee Loong Hee, Kathy Simmons, Bruce Kakimpa, David Hann

GT 2018; V02CT42A031doi:https://doi.org/10.1115/GT2018-76172

Abstract

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Topics: Bearings , Modeling , Drops , Particulate matter , Thin films , Film thickness , Momentum , Shear stress , Simulation , Transportation systems

Numerical Investigations to Assess the Impact of Shaft Speed on the Performance of Scoop Devices

Arun Prabhakar, Yousif Abdalla Abakr, Kathy Simmons

GT 2018; V02CT42A032doi:https://doi.org/10.1115/GT2018-76177

Abstract

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Topics: Bearings , Computational fluid dynamics , Computer simulation , Flow (Dynamics) , Fluids , Geometry , Industrial lubrication systems , Lubrication , Modeling , Plumes (Fluid dynamics)

CFD Study Exploring Jet Configurations and Jet Pulsing for an Aeroengine Scoop-Based Oil Delivery System

Kathy Simmons, Luke Harrison, Evgenia Korsukova, Paloma Paleo Cageao

GT 2018; V02CT42A033doi:https://doi.org/10.1115/GT2018-76182

Abstract

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Topics: Computational fluid dynamics , Jets , Bearings , Design , Flow (Dynamics) , Imaging , Computer software , Cycles , Fluids , Gas turbines

Effect of the Gas to Wall Temperature Ratio on the Bypass Transition

Riccardo Rubini, Roberto Maffulli, Tony Arts

GT 2018; V02CT42A034doi:https://doi.org/10.1115/GT2018-76214

Abstract

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Topics: Boundary layers , Design , Engineering design processes , Engineering simulation , Flow (Dynamics) , Heat transfer , High pressure (Physics) , Mach number , Machinery , Modeling

Numerical Investigation of Non-Isothermal Cavitating Flows on Hydrofoils by Means of an Extended Schnerr-Sauer Model Coupled With a Nucleation Model

Maria Grazia De Giorgi, Antonio Ficarella, Donato Fontanarosa

GT 2018; V02CT42A035doi:https://doi.org/10.1115/GT2018-76223

Abstract

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Topics: Flow (Dynamics) , Hydrofoil , Nucleation (Physics) , Vapors , Bubbles , Cavities , Computation , Density , Mass transfer , Temperature

One-Dimensional Prediction and Three-Dimensional CFD Simulation of the Fluid Dynamics of Regenerative Pumps

Massimiliano Insinna, Simone Salvadori, Francesco Martelli, Giorgio Peroni, Gilles Simon, Antonio Dipace, Raffaele Squarcini

GT 2018; V02CT42A036doi:https://doi.org/10.1115/GT2018-76416

Abstract

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Topics: Computational fluid dynamics , Fluid dynamics , Pumps , Simulation , Design , Flow (Dynamics) , Centrifugal pumps , Displacement , Energy transformation , Fluids

Assessment of Scale Adaptive Simulation of a Rotor of High Pressure Compressor

J. Marty, H. Gaible, H. Bézard

GT 2018; V02CT42A037doi:https://doi.org/10.1115/GT2018-76537

Abstract

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Topics: Compressors , High pressure (Physics) , Rotors , Simulation , Turbulence , Corners (Structural elements) , Leakage flows , Separation (Technology) , Pressure , Blades

Experimental and Numerical Characterization of Transonic Compressor Subjected to Inlet Distortion

Mark H. Ross, Andrew Oliva, Vicente Jerez Fidalgo, Ryan T. Kelly, Aleksandar Jemcov, William Holmes, Laith Zori

GT 2018; V02CT42A038doi:https://doi.org/10.1115/GT2018-76653

Abstract

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Topics: Compressors , Pressure , Rotors , Blades , Pressure measurement , Simulation , Annulus , Computation , Computer simulation , Instrumentation

Numerical Study of Deterministic Fluxes in Compressor Passages

Feng Wang, Mauro Carnevale, Luca di Mare

GT 2018; V02CT42A039doi:https://doi.org/10.1115/GT2018-76668

Abstract

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Topics: Compressors , Flux (Metallurgy) , Flow (Dynamics) , Computational fluid dynamics , Design , Reynolds-averaged Navier–Stokes equations , Stress , Whirls , Blades , Ducts

Forced Response Sensitivity Analysis Using an Adjoint Harmonic Balance Solver

Anna Engels-Putzka, Jan Backhaus, Christian Frey

GT 2018; V02CT42A040doi:https://doi.org/10.1115/GT2018-76703

Abstract

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Topics: Aerodynamic noise , Aerodynamics , Aeroelasticity , Blades , Computational fluid dynamics , Design , Geometry , Numerical analysis , Optimization , Sensitivity analysis

On the Simulation of Unsteady Turbulence and Transition Effects in a Multistage Low Pressure Turbine: Part III — Comparison of Harmonic Balance and Full Wheel Simulation

Edmund Kügeler, Georg Geiser, Jens Wellner, Anton Weber, Anselm Moors

GT 2018; V02CT42A041doi:https://doi.org/10.1115/GT2018-76749

Abstract

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Topics: Pressure , Simulation , Turbine components , Turbulence , Wheels , Stators , Turbines , Blades , Flow (Dynamics) , Separation (Technology)

On the Simulation of Unsteady Turbulence and Transition Effects in a Multistage Low Pressure Turbine: Part I — Verification and Validation

Graham Ashcroft, Christian Frey, Hans-Peter Kersken, Edmund Kügeler, Nina Wolfrum

GT 2018; V02CT42A042doi:https://doi.org/10.1115/GT2018-76756

Abstract

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Topics: Pressure , Simulation , Turbine components , Turbulence , Boundary-value problems , Turbines , Airfoils , Computational fluid dynamics , Flow (Dynamics) , Unsteady flow

On the Simulation of Unsteady Turbulence and Transition Effects in a Multistage Low Pressure Turbine: Part II — Full-Wheel Simulation

Georg Geiser, Jens Wellner, Edmund Kügeler, Anton Weber, Anselm Moors

GT 2018; V02CT42A043doi:https://doi.org/10.1115/GT2018-76764

Abstract

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Topics: Pressure , Simulation , Turbine components , Turbulence , Wheels , Blades , Bubbles , Separation (Technology) , Turbines , Clocks

Maximum Loading Capacity of Tandem Blades in Axial Compressors

Baojie Liu, Du Fu, Xianjun Yu

GT 2018; V02CT42A044doi:https://doi.org/10.1115/GT2018-76770

Abstract

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Topics: Blades , Compressors , Design , Computational fluid dynamics , Diffusers , Flow turning , Geometry , High pressure (Physics) , Numerical analysis , Pressure

Computational Fluid Dynamics Simulations of Windage Loss in a Spur Gear

Murat K. Aktas, Mehmet A. Yavuz, Ali K. Ersan

GT 2018; V02CT42A045doi:https://doi.org/10.1115/GT2018-76828

Abstract

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Topics: Computational fluid dynamics , Engineering simulation , Simulation , Spur gears , Flow (Dynamics) , Gears , Aerodynamics , Air flow , Algorithms , Computer simulation

Digital Geometry and Morphing to Support Analysis and Design

N. Meah, M. Hunt, R. Evans, T. Racz, J. Verdicchio, A. Kudryavtsev, Bill Dawes

GT 2018; V02CT42A046doi:https://doi.org/10.1115/GT2018-76862

Abstract

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Topics: Design , Geometry , Film cooling , Coolants , Cooling , Engineering simulation , Flow simulation , Gas turbines , Genetic algorithms , Optimization

A Methodology for Fully-Coupled CFD Engine Simulations, Applied to a Micro Gas Turbine Engine

Mateus Teixeira, Luigi Romagnosi, Mohamed Mezine, Yannick Baux, Jan Anker, Kilian Claramunt, Charles Hirsch

GT 2018; V02CT42A047doi:https://doi.org/10.1115/GT2018-76870

Abstract

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Topics: Computational fluid dynamics , Engines , Micro gas turbines , Simulation , Turbines , Combustion chambers , Compressors , Design , Flow (Dynamics) , Reynolds-averaged Navier–Stokes equations

Aerodynamic Design System for Non-Axisymmetric Boundary Layer Ingestion Fans

Sandeep Kumar, Mark G. Turner, Kiran Siddappaji, Mark Celestina

GT 2018; V02CT42A048doi:https://doi.org/10.1115/GT2018-77042

Abstract

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Topics: Boundary layers , Design , Fans , Flow (Dynamics) , Geometry , Metals , Blades , Chords (Trusses) , Engineering design processes , Engines

Efficient Adjoint-Based Mesh Adaptation Applied to Turbo-Machinery Flows

Guglielmo Vivarelli, Ning Qin, Shahrokh Shahpar, David Radford

GT 2018; V02CT42A049doi:https://doi.org/10.1115/GT2018-77066

Abstract

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Topics: Flow (Dynamics) , Turbomachinery , Errors , Computer software , Engineers , Interpolation , Springs , Stiffness

Machine Learning Enabled Adaptive Optimization of a Transonic Compressor Rotor With Pre-Compression

Michael Joly, Soumalya Sarkar, Dhagash Mehta

GT 2018; V02CT42A050doi:https://doi.org/10.1115/GT2018-77098

Abstract

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Topics: Compression , Compressors , Machine learning , Optimization , Rotors , Design , Computational fluid dynamics , Failure , Geometry , NASA

Accurate Prediction of Loss Using High Fidelity Methods

Pawel J. Przytarski, Andrew P. S. Wheeler

GT 2018; V02CT42A051doi:https://doi.org/10.1115/GT2018-77125

Abstract

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Topics: Aircraft engines , Cascades (Fluid dynamics) , Compressors , Energy dissipation , Flow (Dynamics) , Physics , Resolution (Optics) , Simulation , Turbulence , Vortices

Large-Eddy Simulation of Corner Separation in a Compressor Cascade

Byung-Young Min, Jongwook Joo, Jomar Mendoza, Jin Lee, Guoping Xia, Gorazd Medic

GT 2018; V02CT42A052doi:https://doi.org/10.1115/GT2018-77144

Abstract

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Topics: Cascades (Fluid dynamics) , Compressors , Corners (Structural elements) , Large eddy simulation , Separation (Technology) , Engineering simulation , Simulation , Boundary layers , Computation , Fluctuations (Physics)

Evaluating Configurations of Double Surface Helical Groove Seals Using Computational Fluid Dynamics

Cori Watson, Houston Wood

GT 2018; V02CT42A053doi:https://doi.org/10.1115/GT2018-77190

Abstract

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Topics: Computational fluid dynamics , Design , Engineering simulation , Engineering standards , Flow (Dynamics) , Fluids , High pressure (Physics) , Kinetic energy , Machinery , Preferences

Unsteady Turbomachinery Simulations Using Harmonic Balance on a Discontinuous Galerkin Discretization

Mayank Sharma, Nathan A. Wukie, Matteo Ugolotti, Mark G. Turner

GT 2018; V02CT42A054doi:https://doi.org/10.1115/GT2018-77204

Abstract

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Topics: Engineering simulation , Simulation , Turbomachinery , Turbine blades , Boundary-value problems , Flow (Dynamics) , Fourier transforms , Geometry