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

Topics: Flow (Dynamics) , Mach number , Pressure , Turbines , Blades , Boundary layers , Gas turbines , Kinetic energy , Nozzle guide vanes , Reynolds number

Dynamics of Shock Waves Interacting With Laminar Separated Transonic Turbine Flow Investigated by High-Speed Schlieren and Surface Hot-Film Sensors

Marcel Börner, Reinhard Niehuis

GT 2020; V02BT33A005doi:https://doi.org/10.1115/GT2020-14386

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Topics: Dynamics (Mechanics) , Flow (Dynamics) , Sensors , Shock waves , Turbines , Bubbles , Separation (Technology) , Boundary layers , Mach number , Suction

A New Multi-Stage Turbine Stator Design for Improved Performance Retention

Heather K. Jameson, John P. Longley

GT 2020; V02BT33A006doi:https://doi.org/10.1115/GT2020-14407

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Topics: Design , Stators , Turbines , Vortices , Rotors , Cavities , Flow (Dynamics) , Leakage , Leakage flows , Separation (Technology)

High-Fidelity Simulations of a High-Pressure Turbine Vane Subject to Large Disturbances: Effect of Exit Mach Number on Losses

Yaomin Zhao, Richard D. Sandberg

GT 2020; V02BT33A007doi:https://doi.org/10.1115/GT2020-14445

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Topics: Engineering simulation , High pressure (Physics) , Mach number , Simulation , Turbines , Blades , Turbulence , Boundary layers , Flow (Dynamics) , Shock (Mechanics)

Optimization of Supersonic Axial Turbine Blades Based on Surrogate Models

Markus Waesker, Bjoern Buelten, Norman Kienzle, Christian Doetsch

GT 2020; V02BT33A008doi:https://doi.org/10.1115/GT2020-14465

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Topics: Impulse (Physics) , Optimization , Turbine blades , Turbines

Interpretation of Low-Pressure Turbine Profile Loss Generation Mechanisms From a Viewpoint of Blade Drag Forces

Hidekazu Kodama, Ken-ichi Funazaki

GT 2020; V02BT33A009doi:https://doi.org/10.1115/GT2020-14519

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Topics: Blades , Drag (Fluid dynamics) , Pressure , Turbines , Form drag , Friction , Reynolds number , Boundary layers , Bubbles , Cascades (Fluid dynamics)

A Bayesian Approach for the Identification of Cascade Loss Model Strategy

Daniele Simoni, Davide Lengani, Daniele Petronio, Francesco Bertini

GT 2020; V02BT33A010doi:https://doi.org/10.1115/GT2020-14625

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Topics: Cascades (Fluid dynamics) , Accounting , Approximation , Design , Fittings , Flow (Dynamics) , Inflow , Polynomials , Pressure , Probability

A CFD-Based Prediction Method for Tip Clearance Losses and Deviations in Axial Turbines

Clemens Buske

GT 2020; V02BT33A011doi:https://doi.org/10.1115/GT2020-14645

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Topics: Clearances (Engineering) , Computational fluid dynamics , Turbines , Flow (Dynamics) , Blades , Engineering simulation , Rotors , Simulation , Boundary layers , Geometry

Unsteady Steam Turbine Optimization Using High Fidelity CFD

Vahid Iranidokht, Ilias Papagiannis, Anestis Kalfas, Reza Abhari, Shigeki Senoo, Kazuhiro Momma

GT 2020; V02BT33A012doi:https://doi.org/10.1115/GT2020-14674

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Topics: Computational fluid dynamics , Optimization , Steam turbines

Hybrid RANS/LES Simulation of Combustor/Turbine Interactions

Guoping Xia, Georgi Kalitzin, Jin Lee, Gorazd Medic, Om Sharma

GT 2020; V02BT33A013doi:https://doi.org/10.1115/GT2020-14873

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Topics: Combustion chambers , Reynolds-averaged Navier–Stokes equations , Simulation , Turbines , Flow (Dynamics) , High pressure (Physics) , Temperature profiles , Blades , Computational fluid dynamics , Design

Experimental and Numerical Study of Laminar-Turbulent Transition on a Low-Pressure Turbine Outlet Guide Vane

Isak Jonsson, Srikanth Deshpande, Valery Chernoray, Oskar Thulin, Jonas Larsson

GT 2020; V02BT33A014doi:https://doi.org/10.1115/GT2020-14990

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Topics: Computational fluid dynamics , Flow (Dynamics) , Guide vanes , Pressure , Thermography , Turbines , Turbulence

Effects of Casing Relative Motion on Aerodynamic Performance With Modified Designs of Winglet and Squealer Tip

Anmol Garg, Sachin Singh Rawat, B. V. S. S. S. Prasad

GT 2020; V02BT33A015doi:https://doi.org/10.1115/GT2020-15003

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Topics: Blades , Cavities , Design , Flow (Dynamics) , Geometry , Heat transfer , High pressure (Physics) , Leakage , Leakage flows , Momentum

Aerodynamic Performance Investigation of Turbine in the Event of One Blade Primary Fracture Failure

Shenghui Zhang, Shuiting Ding, Tian Qiu

GT 2020; V02BT33A016doi:https://doi.org/10.1115/GT2020-15152

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Topics: Blades , Failure , Fracture (Materials) , Fracture (Process) , Safety , Turbine blades , Turbines

Comparison of Endwall Loss Reduction Techniques in a High-Lift Turbine Passage

Christopher R. Marks, Nathan Fletcher, Rolf Sondergaard

GT 2020; V02BT33A017doi:https://doi.org/10.1115/GT2020-15258

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Topics: Turbines , Flow (Dynamics) , Blades , Cascades (Fluid dynamics) , Design , Shapes , Corners (Structural elements) , Jets , Particulate matter , Pressure

Secondary Flow Response to Endwall Jets in a Low Pressure Turbine

Nathan Fletcher, Christopher R. Marks, Molly H. Donovan

GT 2020; V02BT33A018doi:https://doi.org/10.1115/GT2020-15284

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Topics: Flow (Dynamics) , Jets , Pressure , Turbines , Vortices , Blades , Cascades (Fluid dynamics) , Design , Dynamics (Mechanics) , Excitation

Effects of Circumferential Nonuniform Tip Clearance on Flow Field and Performance of a Transonic Turbine

Yun Zheng, Xiubo Jin, Hui Yang, Qingzhe Gao, Kang Xu

GT 2020; V02BT33A019doi:https://doi.org/10.1115/GT2020-15295

Abstract

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Topics: Clearances (Engineering) , Flow (Dynamics) , Turbines

Generation and Development of Klebanoff Streaks in Low-Pressure Turbine Cascade Under Upstream Wakes

Shuang Sun, Xingshuang Wu, Tianrong Tan, Canlin Zuo, Sirui Pan, Fulin Liu

GT 2020; V02BT33A020doi:https://doi.org/10.1115/GT2020-15313

Abstract

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Topics: Cascades (Fluid dynamics) , Pressure , Shear (Mechanics) , Turbines , Wakes

Effect of Jets in Crossflow in Deposition Mitigation on Full 3D NGV With Endwall Features

Stefano Oliani, Nicola Casari, Michele Pinelli, Alessio Suman, Mauro Carnevale

GT 2020; V02BT33A021doi:https://doi.org/10.1115/GT2020-15367

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Topics: Jets , Nozzle guide vanes , Particulate matter , Aerodynamics , Aircraft , Flow (Dynamics) , Airfoils , Cascades (Fluid dynamics) , Compressors , Computational fluid dynamics

Contribution of Tip Shroud Cavity to Loss Generation in the Main Flow of a Low Pressure Turbine Using Steady and Unsteady Numerical Approach

Maxime Perini, Nicolas Binder, Yannick Bousquet, Eric Schwartz

GT 2020; V02BT33A022doi:https://doi.org/10.1115/GT2020-15422

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Topics: Cavities , Flow (Dynamics) , Pressure , Turbines , Simulation , Cavity flows , Computation , Entropy , Optimization , Rotors

Analysis of Measured and Predicted Turbine Maps From Start-Up to Design Point

Alberto Scotti del Greco, Sara Biagiotti, Vittorio Michelassi, Tomasz Jurek, Daniele Di Benedetto, Stefano Francini, Michele Marconcini

GT 2020; V02BT33A023doi:https://doi.org/10.1115/GT2020-15484

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Topics: Computational fluid dynamics , Design , Turbines

Improving Characteristics of a Cooled Transonic Vane of Low Pressure Turbine Under Nonuniform Inlet Conditions

A. V. Granovskiy, I. V. Afanasiev, V. K. Kostege, E. Yu. Marchukov

GT 2020; V02BT33A024doi:https://doi.org/10.1115/GT2020-15589

Abstract

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Topics: Flow (Dynamics) , Pressure , Turbines

Numerical Investigation on Unsteady Characteristics in Different Rim Seal Geometries: Part B

Zengyan Lian, Qiang Du, Guang Liu, Ruonan Wang, Lei Xie

GT 2020; V02BT33A025doi:https://doi.org/10.1115/GT2020-15607

Abstract

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Topics: Blades , Computation , Computational fluid dynamics , Disks , Flow (Dynamics) , Gas turbines , Pressure , Reynolds-averaged Navier–Stokes equations , Rotors , Sealants

Detailed Experimental Study of the Flow in a Turbine Rear Structure at Engine Realistic Flow Conditions

Valentin Vikhorev, Valery Chernoray, Oskar Thulin, Srikanth Deshpande, Jonas Larsson

GT 2020; V02BT33A026doi:https://doi.org/10.1115/GT2020-15734

Abstract

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Topics: Engines , Flow (Dynamics) , Guide vanes , Pressure , Turbines

Effects of Shock Wave Development on Secondary Flow Behavior in Linear Turbine Cascade at Transonic Condition

Hoshio Tsujita, Masanao Kaneko

GT 2020; V02BT33A027doi:https://doi.org/10.1115/GT2020-15772

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Topics: Cascades (Fluid dynamics) , Computational fluid dynamics , Flow (Dynamics) , Shock waves , Transonic flow , Turbines

Effects of Trailing Edge Thickness and Blade Loading Distribution on the Aerodynamic Performance of Simulated CMC Turbine Blades

Paul W. Giel, Vikram Shyam, Paht Juangphanich, John P. Clark

GT 2020; V02BT33A028doi:https://doi.org/10.1115/GT2020-15802

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Topics: Blades , Ceramic matrix composites , Turbine blades , Reynolds number , Turbulence , Cascades (Fluid dynamics) , Chords (Trusses) , Design , Dimensions , Mach number

Numerical Investigations on the Effect of Pivot Shapes in Part Clearance Flow Field of Variable Area LP Turbine Nozzle Vane

Hardikkumar Bhavsar, Chetan S. Mistry

GT 2020; V02BT33A029doi:https://doi.org/10.1115/GT2020-15969

Abstract

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Topics: Clearances (Engineering) , Flow (Dynamics) , Nozzles , Shapes , Turbines , Leakage flows , Engines , Leakage , Design , Entropy

Methods to Have Tighter Clearance in Gas Turbine: Turbine Section

Santhana G. Babu, Kammalapalli Ramesh, Leonardo Tognarelli

GT 2020; V02BT33A030doi:https://doi.org/10.1115/GT2020-15973

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Topics: Clearances (Engineering) , Gas turbines , Turbines , Design , Honeycomb structures , Pressure , Rotors , Damage , Flow (Dynamics) , Heat

Experimental Study on Aerodynamic Loss and Heat Transfer for Various Squealer Tips

Jin-sol Jung, Inkyom Kim, Jin Sung Joo, Sang Woo Lee

GT 2020; V02BT33A031doi:https://doi.org/10.1115/GT2020-16046

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Topics: Axial flow , Cascades (Fluid dynamics) , Clearances (Engineering) , Gas turbines , Heat transfer , Pressure , Stress , Suction , Turbines

Exploring Topology Optimisation of High Pressure Turbine Blade Tips

Luka Vincekovic, Alistair John, Ning Qin, Shahrokh Shahpar

GT 2020; V02BT33A032doi:https://doi.org/10.1115/GT2020-16059

Abstract

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Topics: High pressure (Physics) , Optimization , Topology , Turbine blades , Blades , Design , Geometry , Rotors , Shapes , Turbines

Effect of Suction Side Jet on the Shock Wave Boundary Layer Interaction in Transonic Turbine

Liu Jian, Duan Wenhua, Zhang Liangji, Qiao Weiyang

GT 2020; V02BT33A033doi:https://doi.org/10.1115/GT2020-16256

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Topics: Boundary layers , Separation (Technology) , Shock waves , Suction , Turbines

Numerical Study of Influence of Rotor Tip Gap Increase due to Age Deterioration in 3-Stage Gas Turbine

Koichi Yonezawa, Junichi Sakamoto, Kazuyasu Sugiyama, Shuichi Ohmori, Shuichi Umezawa

GT 2020; V02BT33A034doi:https://doi.org/10.1115/GT2020-16270

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Topics: Gas turbines , Rotors , Blades , Clearances (Engineering) , Computational fluid dynamics , Simulation , Boundary-value problems , Entropy , Flow (Dynamics) , Heat

The Influence of Mach Number on the Boundary Layer Development of High-Lift Low Pressure Turbine in Low Reynolds Number

Wenhua Duan, Jian Liu, Weiyang Qiao

GT 2020; V02BT33A035doi:https://doi.org/10.1115/GT2020-16278

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Topics: Boundary layers , Mach number , Pressure , Reynolds number , Turbines

Deposition, Erosion, Fouling, and Icing

The Effect of Sand Erosion on a Compressor Blade and its Modal Properties

Robby Weber, Arnold Kühhorn, Thomas Klauke, Sven Schrape

GT 2020; V02BT34A001doi:https://doi.org/10.1115/GT2020-14045

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Topics: Blades , Compressors , Erosion , Sands , Engines , Airfoils , Damage , Design , High cycle fatigue , Wear

The Formation of High Temperature Minerals From an Evaporite-Rich Dust in Gas Turbine Engine Ingestion Tests

Jacob Elms, Alison Pawley, Nicholas Bojdo, Merren Jones, Rory Clarkson

GT 2020; V02BT34A002doi:https://doi.org/10.1115/GT2020-14236

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Topics: Dust , Gas turbines , High temperature , Minerals

Deposition of Fuel Impurities Within Thermal Barrier Coatings in Gas Turbine Hot Gas Paths

Christian Holländer, Werner Stamm, Oliver Lüsebrink, Harald Harders, Lorenz Singheiser

GT 2020; V02BT34A003doi:https://doi.org/10.1115/GT2020-14480

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Topics: Fuels , Gas turbines , Thermal barrier coatings , Diffusion (Physics) , Equilibrium (Physics) , Pressure , Vapor deposition , Blades , Condensation , Engines

Numerical Analysis of Particle Deposition in an Aircraft Engine Compressor Cascade

Nicola Casari, Johannes Altmeppen, Christian Koch, Michele Pinelli, Stephan Staudacher, Alessio Suman, Alessandro Vulpio

GT 2020; V02BT34A004doi:https://doi.org/10.1115/GT2020-14506

Abstract

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Topics: Aircraft engines , Cascades (Fluid dynamics) , Compressors , Numerical analysis , Particulate matter , Flow (Dynamics) , Adhesion , Computer simulation , Engines , Gas turbines

Turbine Nozzle Insert Clogging With Seeded Medium Size Particles

Hongzhou Xu, Kevin Liu, Michael Fox

GT 2020; V02BT34A005doi:https://doi.org/10.1115/GT2020-14522

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Topics: Nozzles , Particulate matter , Turbines , Engines , Pressure , Coating processes , Coatings , Cooling , Design , Filtration

Improving Gas Turbine Performance Through Reassembling Degraded Components: An Experimental and Computational Study

Shuocheng Xia, Zhongran Chi, Shusheng Zang, Hui Wang

GT 2020; V02BT34A006doi:https://doi.org/10.1115/GT2020-14627

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Topics: Gas turbines , Engines , Computational fluid dynamics , Maintenance , Simulation , Thermal efficiency , Compressors , Flow (Dynamics) , Testing performance , Turbines

Ice Crystal Icing Investigation on a Honeywell Uncertified Research Engine in an Altitude Simulation Icing Facility

Ashlie B. Flegel

GT 2020; V02BT34A007doi:https://doi.org/10.1115/GT2020-14714

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Topics: Crystals , Engines , Ice , Simulation , Particulate matter , Stators , Inlet guide vanes , Temperature , Particle size , Metals

Numerical Study of Erosion due to Online Water Washing in Axial Flow Compressors

Francesca Di Gruttola, Giuliano Agati, Paolo Venturini, Domenico Borello, Franco Rispoli, Serena Gabriele, Domenico Simone

GT 2020; V02BT34A008doi:https://doi.org/10.1115/GT2020-14767

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Topics: Axial flow , Compressors , Drops , Erosion , Water

An Industrial Methodology for Erosion Analysis of FCC Expander Blades

Nicola Maceli, Gianfranco Maffulli

GT 2020; V02BT34A009doi:https://doi.org/10.1115/GT2020-14891

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Topics: Blades , Erosion , Particulate matter

Experimental Study on Thermal Efficiency of a Multi-Jet Anti-Icing System With Piccolo Tube

Xueqin Bu, Ping Huang, Haoyang Sun, Guiping Lin

GT 2020; V02BT34A010doi:https://doi.org/10.1115/GT2020-15153

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Topics: Thermal efficiency

Influence of Turboshaft Engine Architecture on Ash Particle Deposition: Reduced Order Model Application

Matthew Ellis, Nicholas Bojdo, Antonio Filippone

GT 2020; V02BT34A011doi:https://doi.org/10.1115/GT2020-15203

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Topics: Engines , Particulate matter , Temperature , Flames , Combustion chambers , Computer simulation , Damage , Gas turbines , High pressure (Physics) , Melting

Uncertainty Analysis of Inflow Conditions on an HPT Gas Turbine Nozzle: Effect on Particle Deposition

R. Friso, N. Casari, M. Pinelli, A. Suman, F. Montomoli

GT 2020; V02BT34A012doi:https://doi.org/10.1115/GT2020-15370

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Topics: Gas turbines , Inflow , Nozzles , Particulate matter , Uncertainty analysis , Uncertainty , Creep , Engines , Flow (Dynamics) , Machinery

The Effect of Thermal Barrier Coating Surface Temperature on the Adhesion Behavior of CMAS Deposits

Robert A. Clark, Nicholas Plewacki, Pritheesh Gnanaselvam, Jeffrey P. Bons, Vaishak Viswanathan

GT 2020; V02BT34A013doi:https://doi.org/10.1115/GT2020-15544

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Topics: Adhesion , Temperature , Thermal barrier coatings , Flow (Dynamics) , Particulate matter , Heat transfer , High pressure (Physics) , Turbines , Turbofans , Coolants

An Experimental and Computational Investigation of Absolute Pressure Effects on Deposition in an Effusion Cooling Geometry

Christopher P. Bowen, Jeffrey P. Bons

GT 2020; V02BT34A014doi:https://doi.org/10.1115/GT2020-15632

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Topics: Cooling , Geometry , Pressure , Flow (Dynamics) , Particulate matter , Discharge coefficient , Drag (Fluid dynamics) , Engineering simulation , Erosion , Simulation

Structural Analysis of a Gas Turbine Axial Compressor Blade Eroded by Online Water Washing

Rossella Cinelli, Gianluca Maggiani, Serena Gabriele, Alessio Castorrini, Giuliano Agati, Franco Rispoli

GT 2020; V02BT34A015doi:https://doi.org/10.1115/GT2020-15942

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Topics: Blades , Compressors , Gas turbines , Structural analysis , Water , Erosion , Computational fluid dynamics , Damage , Finite element methods , Simulation

Development and Validation of a Continuous Random Walk Model for Particle Tracking in Accelerating Flows

Nikul Vadgama, Marios Kapsis, Peter Forsyth, Matthew McGilvray, David R. H. Gillespie

GT 2020; V02BT34A016doi:https://doi.org/10.1115/GT2020-16026

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Topics: Flow (Dynamics) , Particulate matter , Reynolds-averaged Navier–Stokes equations , Turbulence , Engineering simulation , Simulation , Statistics , Stress , Computational fluid dynamics , Damage

Numerical Simulation Model of Electrothermal De-Icing Process on Composite Substrate

Xiaofeng Guo, Zhiqiang Guo, Qian Yang, Wei Dong

GT 2020; V02BT34A017doi:https://doi.org/10.1115/GT2020-16116

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Topics: Composite materials , Computer simulation , Deicing , Ice , Carbon reinforced plastics , Melting , Airfoils , Thermal properties , Fibers , Heat transfer

Boundary Conditions for Compressor Cascade Ice Crystal Icing Testing

Matthias Nagorski, Christian Koch, Stephan Staudacher

GT 2020; V02BT34A018doi:https://doi.org/10.1115/GT2020-16143

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Topics: Boundary-value problems , Cascades (Fluid dynamics) , Compressors , Crystals , Ice , Testing

Effect of Initial Surface Roughness on Water Erosion Resistance of Last Stage Blade Substrate of Steam Turbine

Fang Li, Shunsen Wang, Juan Di, Zhenping Feng

GT 2020; V02BT34A019doi:https://doi.org/10.1115/GT2020-16262

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Topics: Blades , Drops , Erosion , Steam turbines , Surface roughness , Water

Estimation of Aircraft Engine Flight Mission Severity Caused by Erosion

Tim Brandes, Christian Koch, Stephan Staudacher

GT 2020; V02BT34A020doi:https://doi.org/10.1115/GT2020-16297

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Topics: Aircraft engines , Erosion , Flight , Compressors , Blades , Engines , Particulate matter , Flow (Dynamics) , Separation (Technology) , Annulus