Volume 135 Issue 6 | J. Turbomach. | ASME Digital Collection

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Volume 135, Issue 6

November 2013

ISSN 0889-504X

EISSN 1528-8900

Research Papers

A Reduced-Order Meshless Energy Model for the Vibrations of Mistuned Bladed Disks—Part I: Theoretical Basis

O. G. McGee, III, C. Fang, Y. El-Aini

J. Turbomach. November 2013, 135(6): 061001. doi: https://doi.org/10.1115/1.4004445

Abstract

View articletitled, A Reduced-Order Meshless Energy Model for the Vibrations of Mistuned Bladed Disks—Part I: Theoretical Basis

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Topics: Blades , Disks

A Reduced-Order Meshless Energy Model for the Vibrations of Mistuned Bladed Disks—Part II: Finite Element Benchmark Comparisons

C. Fang, O. G. McGee, III, Y. El Aini

J. Turbomach. November 2013, 135(6): 061002. doi: https://doi.org/10.1115/1.4007256

Abstract

View articletitled, A Reduced-Order Meshless Energy Model for the Vibrations of Mistuned Bladed Disks—Part II: Finite Element Benchmark Comparisons

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Topics: Blades , Disks , Finite element methods

Investigation of Secondary Flow Behavior in a Radial Turbine Nozzle

Mohammad Alexin Putra, Franz Joos

J. Turbomach. November 2013, 135(6): 061003. doi: https://doi.org/10.1115/1.4024627

Abstract

View articletitled, Investigation of Secondary Flow Behavior in a Radial Turbine Nozzle

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Topics: Flow (Dynamics) , Nozzles , Turbines , Vortices , Pressure , Inflow

Integer Frequency Veering of Mistuned Blade Integrated Disks

T. Klauke, U. Strehlau, A. Kühhorn

J. Turbomach. November 2013, 135(6): 061004. doi: https://doi.org/10.1115/1.4024022

Abstract

View articletitled, Integer Frequency Veering of Mistuned Blade Integrated Disks

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Topics: Blades , Disks , Vibration

Effect of Blowing Ratio on Early Stage Deposition of Syngas Ash on a Film-Cooled Vane Leading Edge Using Large Eddy Simulations

Sai Shrinivas Sreedharan, Danesh K. Tafti

J. Turbomach. November 2013, 135(6): 061005. doi: https://doi.org/10.1115/1.4025153

Abstract

View articletitled, Effect of Blowing Ratio on Early Stage Deposition of Syngas Ash on a Film-Cooled Vane Leading Edge Using Large Eddy Simulations

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Topics: Coolants , Flow (Dynamics) , Particulate matter , Temperature , Turbulence , Viscosity , Syngas , Large eddy simulation

Application of Nonaxisymmetric Endwall Contouring to Conventional and High-Lift Turbine Airfoils

T. J. Praisner, E. Allen-Bradley, E. A. Grover, D. C. Knezevici, S. A. Sjolander

J. Turbomach. November 2013, 135(6): 061006. doi: https://doi.org/10.1115/1.4024023

Abstract

View articletitled, Application of Nonaxisymmetric Endwall Contouring to Conventional and High-Lift Turbine Airfoils

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Topics: Airfoils , Design , Flow (Dynamics) , Turbines , Pressure , Vortices

Toward the Expansion of Low-Pressure-Turbine Airfoil Design Space

T. J. Praisner, E. A. Grover, D. C. Knezevici, I. Popovic, S. A. Sjolander, J. P. Clark, R. Sondergaard

J. Turbomach. November 2013, 135(6): 061007. doi: https://doi.org/10.1115/1.4024796

Abstract

View articletitled, Toward the Expansion of Low-Pressure-Turbine Airfoil Design Space

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Topics: Airfoils , Design , Pressure , Reynolds number

Predictions of Unsteady Interactions Between Closely Coupled High Pressure- and Low Pressure-Turbines With Co- and Counterrotation

T. J. Praisner, E. A. Grover, R. Mocanu, R. J. Jurek, R. E. Gacek

J. Turbomach. November 2013, 135(6): 061008. doi: https://doi.org/10.1115/1.4024635

Abstract

View articletitled, Predictions of Unsteady Interactions Between Closely Coupled High Pressure- and Low Pressure-Turbines With Co- and Counterrotation

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Topics: Airfoils , Blades , Pressure , Simulation , Turbines

Film-Cooling Performance of Antivortex Hole on a Flat Plate

Christopher LeBlanc, Diganta P. Narzary, Srinath Ekkad

J. Turbomach. November 2013, 135(6): 061009. doi: https://doi.org/10.1115/1.4023436

Abstract

View articletitled, Film-Cooling Performance of Antivortex Hole on a Flat Plate

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Topics: Density , Film cooling , Flat plates , Flow (Dynamics) , Geometry , Coolants , Fluids , Cooling , Momentum , Design

The Map Fitting Tool Methodology: Gas Turbine Compressor Off-Design Performance Modeling

Vishal Sethi, Georgios Doulgeris, Pericles Pilidis, Alex Nind, Marc Doussinault, Pedro Cobas, Almudena Rueda

J. Turbomach. November 2013, 135(6): 061010. doi: https://doi.org/10.1115/1.4023903

Abstract

View articletitled, The Map Fitting Tool Methodology: Gas Turbine Compressor Off-Design Performance Modeling

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Topics: Compressors , Design , Scalars , Flow (Dynamics)

Heat Transfer Coefficient Measurements on the Film-Cooled Pressure Surface of a Transonic Airfoil

Paul M. Kodzwa, John K. Eaton

J. Turbomach. November 2013, 135(6): 061011. doi: https://doi.org/10.1115/1.4023620

Abstract

View articletitled, Heat Transfer Coefficient Measurements on the Film-Cooled Pressure Surface of a Transonic Airfoil

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Topics: Airfoils , Coolants , Density , Flow (Dynamics) , Heat flux , Heat transfer , Heat transfer coefficients , Pressure , Temperature , Turbulence

On the Reliability of RANS and URANS Numerical Results for High-Pressure Turbine Simulations: A Benchmark Experimental and Numerical Study on Performance and Interstage Flow Behavior of High-Pressure Turbines at Design and Off-Design Conditions Using Two Different Turbine Designs

M. T. Schobeiri, S. Abdelfattah

J. Turbomach. November 2013, 135(6): 061012. doi: https://doi.org/10.1115/1.4024787

Abstract

View articletitled, On the Reliability of RANS and URANS Numerical Results for High-Pressure Turbine Simulations: A Benchmark Experimental and Numerical Study on Performance and Interstage Flow Behavior of High-Pressure Turbines at Design and Off-Design Conditions Using Two Different Turbine Designs

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Topics: Flow (Dynamics) , Reynolds-averaged Navier–Stokes equations , Rotors , Simulation , Turbines , Pressure , Computer simulation , Blades , Stators , Design

Detailed Velocity and Turbulence Measurements in an Inclined Large-Scale Film Cooling Array

Lamyaa A. El-Gabry, Douglas R. Thurman, Philip E. Poinsatte, James D. Heidmann

J. Turbomach. November 2013, 135(6): 061013. doi: https://doi.org/10.1115/1.4023347

Abstract

View articletitled, Detailed Velocity and Turbulence Measurements in an Inclined Large-Scale Film Cooling Array

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Topics: Turbulence , Film cooling , Fluctuations (Physics)

Aerothermal Impact of the Interaction Between Hub Leakage and Mainstream Flows in Highly-Loaded High Pressure Turbine Blades

Ivan Popović, Howard P. Hodson

J. Turbomach. November 2013, 135(6): 061014. doi: https://doi.org/10.1115/1.4023621

Abstract

View articletitled, Aerothermal Impact of the Interaction Between Hub Leakage and Mainstream Flows in Highly-Loaded High Pressure Turbine Blades

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Topics: Blades , Flow (Dynamics) , Leakage , Cooling , Cavities

The Effects of Unsteadiness and Compressibility on the Interaction Between Hub Leakage and Mainstream Flows in High-Pressure Turbines

Ivan Popović, Howard P. Hodson, Erik Janke, Torsten Wolf

J. Turbomach. November 2013, 135(6): 061015. doi: https://doi.org/10.1115/1.4024636

Abstract

View articletitled, The Effects of Unsteadiness and Compressibility on the Interaction Between Hub Leakage and Mainstream Flows in High-Pressure Turbines

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Topics: Blades , Flow (Dynamics) , Leakage , Compressibility , Rotors , Pressure , Turbines

Improving Turbine Stage Efficiency and Sealing Effectiveness Through Modifications of the Rim Seal Geometry

Ivan Popovíc, Howard P. Hodson

J. Turbomach. November 2013, 135(6): 061016. doi: https://doi.org/10.1115/1.4024872

Abstract

View articletitled, Improving Turbine Stage Efficiency and Sealing Effectiveness Through Modifications of the Rim Seal Geometry

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Topics: Blades , Flow (Dynamics) , Leakage , Rotors , Sealing (Process) , Vortices , Turbines , Geometry , Cavities , Pressure

Experimentally Observed Unsteady Work at Inlet to and Exit From an Axial Flow Turbine Rotor

Martin G. Rose, Philipp Jenny, Jochen Gier, Reza S. Abhari

J. Turbomach. November 2013, 135(6): 061017. doi: https://doi.org/10.1115/1.4023460

Abstract

View articletitled, Experimentally Observed Unsteady Work at Inlet to and Exit From an Axial Flow Turbine Rotor

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Topics: Pressure , Rotors , Turbines , Computational fluid dynamics

Experimental Study of Surge Precursors in a High-Speed Multistage Compressor

Nicolas Courtiade, Xavier Ottavy

J. Turbomach. November 2013, 135(6): 061018. doi: https://doi.org/10.1115/1.4023462

Abstract

View articletitled, Experimental Study of Surge Precursors in a High-Speed Multistage Compressor

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Topics: Compressors , Pressure , Rotors , Surges , Flow (Dynamics) , Machinery , Control systems , Sensors

Through-Flow Analysis of Air-Cooled Gas Turbines

Milan V. Petrovic, Alexander Wiedermann

J. Turbomach. November 2013, 135(6): 061019. doi: https://doi.org/10.1115/1.4023463

Abstract

View articletitled, Through-Flow Analysis of Air-Cooled Gas Turbines

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Topics: Coolants , Cooling , Flow (Dynamics) , Turbines , Entropy

Turbine Blade Cooling System Optimization

Julian Girardeau, Jérôme Pailhes, Patrick Sebastian, Frédéric Pardo, Jean-Pierre Nadeau

J. Turbomach. November 2013, 135(6): 061020. doi: https://doi.org/10.1115/1.4023466

Abstract

View articletitled, Turbine Blade Cooling System Optimization

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Topics: Blades , Design , Engines , Nozzle guide vanes , Optimization , Cooling systems , Maintenance , Computational fluid dynamics , Film cooling , Temperature

Technical Briefs

Thermomechanical Stress Distributions in a Gas Turbine Blade Under the Effect of Cooling Flow Variations

Candelario Bolaina, Julio Teloxa, Cesar Varela, Fernando Z. Sierra

J. Turbomach. November 2013, 135(6): 064501. doi: https://doi.org/10.1115/1.4023465

Abstract

View articletitled, Thermomechanical Stress Distributions in a Gas Turbine Blade Under the Effect of Cooling Flow Variations

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Topics: Blades , Cooling , Flow (Dynamics) , Rotation , Stress , Temperature , Thermomechanics , Gas turbines

Research Papers

A Reduced-Order Meshless Energy Model for the Vibrations of Mistuned Bladed Disks—Part I: Theoretical Basis

A Reduced-Order Meshless Energy Model for the Vibrations of Mistuned Bladed Disks—Part II: Finite Element Benchmark Comparisons

Investigation of Secondary Flow Behavior in a Radial Turbine Nozzle

Integer Frequency Veering of Mistuned Blade Integrated Disks

Effect of Blowing Ratio on Early Stage Deposition of Syngas Ash on a Film-Cooled Vane Leading Edge Using Large Eddy Simulations

Application of Nonaxisymmetric Endwall Contouring to Conventional and High-Lift Turbine Airfoils

Toward the Expansion of Low-Pressure-Turbine Airfoil Design Space

Predictions of Unsteady Interactions Between Closely Coupled High Pressure- and Low Pressure-Turbines With Co- and Counterrotation

Film-Cooling Performance of Antivortex Hole on a Flat Plate

The Map Fitting Tool Methodology: Gas Turbine Compressor Off-Design Performance Modeling

Heat Transfer Coefficient Measurements on the Film-Cooled Pressure Surface of a Transonic Airfoil

On the Reliability of RANS and URANS Numerical Results for High-Pressure Turbine Simulations: A Benchmark Experimental and Numerical Study on Performance and Interstage Flow Behavior of High-Pressure Turbines at Design and Off-Design Conditions Using Two Different Turbine Designs

Detailed Velocity and Turbulence Measurements in an Inclined Large-Scale Film Cooling Array

Aerothermal Impact of the Interaction Between Hub Leakage and Mainstream Flows in Highly-Loaded High Pressure Turbine Blades

The Effects of Unsteadiness and Compressibility on the Interaction Between Hub Leakage and Mainstream Flows in High-Pressure Turbines

Improving Turbine Stage Efficiency and Sealing Effectiveness Through Modifications of the Rim Seal Geometry

Experimentally Observed Unsteady Work at Inlet to and Exit From an Axial Flow Turbine Rotor

Experimental Study of Surge Precursors in a High-Speed Multistage Compressor

Through-Flow Analysis of Air-Cooled Gas Turbines

Turbine Blade Cooling System Optimization

Technical Briefs

Thermomechanical Stress Distributions in a Gas Turbine Blade Under the Effect of Cooling Flow Variations

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