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Proceedings Papers

Leakage Flow Impact on Shrouded Stator Cavity Flow Topology and Associated High Speed Axial Compressor Stage Performance

Cedric Babin, Xavier Ottavy, Fabrizio Fontaneto
Proc. ASME. GT2022, Volume 10A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V10AT29A035, June 13–17, 2022
Paper No: GT2022-82868
https://doi.org/10.1115/GT2022-82868
View Paper titled, Leakage Flow Impact on Shrouded Stator Cavity Flow Topology and Associated High Speed Axial Compressor Stage Performance
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Topics: Cavity flows, Compressors, Leakage flows, Stators, Topology, Cavities, Design, Boundary layers, Engineering simulation, Fluid dynamics
Proceedings Papers

Loss Analysis of Cavity Leakage Flow in a Compressor Cascade

Hefang Deng, Kailong Xia, Jinfang Teng, Shaopeng Lu, Mingmin Zhu, Xiaoqing Qiang
Proc. ASME. GT2022, Volume 10A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V10AT29A028, June 13–17, 2022
Paper No: GT2022-82361
https://doi.org/10.1115/GT2022-82361
View Paper titled, Loss Analysis of Cavity Leakage Flow in a Compressor Cascade
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Topics: Cascades (Fluid dynamics), Cavities, Clearances (Engineering), Compressors, Entropy, Leakage flows
Proceedings Papers

The Influence of Shrouded Stator Cavity Boundary Conditions on Performance of a 1.5-Stage Low-Speed Research Compressor

Runzhu Shao, Mingmin Zhu, Jinfang Teng, Xiaoqing Qiang
Proc. ASME. GT2022, Volume 10A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V10AT29A018, June 13–17, 2022
Paper No: GT2022-81904
https://doi.org/10.1115/GT2022-81904
View Paper titled, The Influence of Shrouded Stator Cavity Boundary Conditions on Performance of a 1.5-Stage Low-Speed Research Compressor
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Topics: Boundary-value problems, Cavities, Compressors, Leakage flows, Stators
Proceedings Papers

Vortical Structures and Loss Mechanism of Tip Leakage Flow In Subsonic and Transonic Turbine Stages

P. H. Duan, L. He
Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT30A032, June 13–17, 2022
Paper No: GT2022-83473
https://doi.org/10.1115/GT2022-83473
View Paper titled, Vortical Structures and Loss Mechanism of Tip Leakage Flow In Subsonic and Transonic Turbine Stages
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Topics: Leakage flows, Turbines, Flow (Dynamics), Cavities, Vortices, Leakage, Platform supply vessels, Pressure, Cascades (Fluid dynamics), Heat transfer
Proceedings Papers

Influence of Purge Flow Injection on the Performance of an Axial Turbine With Three-Dimensional Airfoils and Non-Axisymmetric Endwall Contouring

Lukas Schäflein, Johannes Janssen, Henri Brandies, Peter Jeschke, Stephan Behre
Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT30A001, June 13–17, 2022
Paper No: GT2022-78057
https://doi.org/10.1115/GT2022-78057
View Paper titled, Influence of Purge Flow Injection on the Performance of an Axial Turbine With Three-Dimensional Airfoils and Non-Axisymmetric Endwall Contouring
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Topics: Airfoils, Flow (Dynamics), Turbines, Probes, Stators, Cavities, Computer simulation, Engineering simulation, Optimization, Reynolds-averaged Navier–Stokes equations
Proceedings Papers

Investigation of the Interaction Between Tip Leakage and Main Annulus Flow in the Large Scale Turbine Rig: Comparison of Different Rotor Tip Geometries

Dominik Ade, Johannes Eitenmüller, Sebastian Leichtfuß, Heinz-Peter Schiffer, Christoph Lyko, Gregor Schmid
Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT30A008, June 13–17, 2022
Paper No: GT2022-80896
https://doi.org/10.1115/GT2022-80896
View Paper titled, Investigation of the Interaction Between Tip Leakage and Main Annulus Flow in the Large Scale Turbine Rig: Comparison of Different Rotor Tip Geometries
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Topics: Annulus, Flow (Dynamics), Leakage, Rotors, Turbines, Blades, Leakage flows, Vortices, Cavities, Design
Proceedings Papers

Assessment of RANS Turbulence Models on Simplified Geometries Representative of Turbine Blade Tip Shroud Flow

Fatih Uncu, Benjamin François, Nicolas Buffaz, Sébastien Le Guyader
Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT30A007, June 13–17, 2022
Paper No: GT2022-80681
https://doi.org/10.1115/GT2022-80681
View Paper titled, Assessment of RANS Turbulence Models on Simplified Geometries Representative of Turbine Blade Tip Shroud Flow
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Topics: Flow (Dynamics), Reynolds-averaged Navier–Stokes equations, Turbine blades, Turbulence, Blades, Eddies (Fluid dynamics), Engineering simulation, Kinetic energy, Pressure, Reynolds stress
Proceedings Papers

Aerothermal Performance of Axially Varying Winglet-Squealer Blade Tips

Anmol Garg, Nagabhushana Rao Vadlamani, Balaji Srinivasan
Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT30A030, June 13–17, 2022
Paper No: GT2022-82947
https://doi.org/10.1115/GT2022-82947
View Paper titled, Aerothermal Performance of Axially Varying Winglet-Squealer Blade Tips
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Topics: Blades, Design, Pressure, Cavities, Accounting, Dynamics (Mechanics), Flow (Dynamics), Fluid dynamics, Heat, High pressure (Physics)
Proceedings Papers

Aerodynamic Assessment of Turbine Center Frames and Turbine Vane Frames Under the Influence of Purge Flows

Filippo Merli, Asim Hafizovic, Nicolas Krajnc, Malte Schien, Andreas Peters, Franz Heitmeir, Emil Göttlich
Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT33A013, June 13–17, 2022
Paper No: GT2022-82502
https://doi.org/10.1115/GT2022-82502
View Paper titled, Aerodynamic Assessment of Turbine Center Frames and Turbine Vane Frames Under the Influence of Purge Flows
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Topics: Flow (Dynamics), Turbines, Ducts, Engines, Design, Pressure, Rotors, Blades, Cavities, Probes
Proceedings Papers

The Interaction of Main Stream Flow and Cavity Flows in Turbine Center Frames and Turbine Vane Frames

Filippo Merli, Asim Hafizovic, Nicolas Krajnc, Malte Schien, Andreas Peters, Franz Heitmeir, Emil Göttlich
Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT33A012, June 13–17, 2022
Paper No: GT2022-82458
https://doi.org/10.1115/GT2022-82458
View Paper titled, The Interaction of Main Stream Flow and Cavity Flows in Turbine Center Frames and Turbine Vane Frames
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Topics: Cavity flows, Flow (Dynamics), Turbines, Ducts, Engines, Boundary layers, Cavities, Probes, Rotors, Struts (Engineering)
Proceedings Papers

Numerical Investigation of the Effects of Tip Clearance and Rotor Cavities on the Performance of a 1.5-Stage High-Work Turbine

Thorsten Hansen, Erik Munktell, Georg Scheuerer, Kim Zwiener
Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT32A012, June 13–17, 2022
Paper No: GT2022-81059
https://doi.org/10.1115/GT2022-81059
View Paper titled, Numerical Investigation of the Effects of Tip Clearance and Rotor Cavities on the Performance of a 1.5-Stage High-Work Turbine
Open the PDF for Numerical Investigation of the Effects of Tip Clearance and Rotor Cavities on the Performance of a 1.5-Stage High-Work Turbine in another window
Topics: Cavities, Clearances (Engineering), Computational fluid dynamics, Rotors, Turbines
Proceedings Papers

Low Mach Preconditioning for Turbomachinery Flow Simulations With Cavities and Variable Gas Compositions

Pierre Sivel, Christian Frey, Edmund Kügeler, Markus Keil
Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT32A005, June 13–17, 2022
Paper No: GT2022-79369
https://doi.org/10.1115/GT2022-79369
View Paper titled, Low Mach Preconditioning for Turbomachinery Flow Simulations With Cavities and Variable Gas Compositions
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Topics: Cavities, Flow simulation, Turbomachinery, Fluids, Computation, Exhaust systems, Gases, Computer simulation, Density, Inflow
Proceedings Papers

Numerical Investigation Into Maximum Pressure Capability of Intershaft Hydraulic Seals

Achinie Warusevitane, Kathy Johnson, Stephen Ambrose
Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT32A025, June 13–17, 2022
Paper No: GT2022-82196
https://doi.org/10.1115/GT2022-82196
View Paper titled, Numerical Investigation Into Maximum Pressure Capability of Intershaft Hydraulic Seals
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Topics: Computational fluid dynamics, Pressure, Fluids, Leakage, Air flow, Aircraft engines, Analytical methods, Cavities, Computer simulation, Design
Proceedings Papers

Analysis of Cavity Leakage Effects on Coupled Non-Axisymmetric Endwall-Airfoil Optimization in a Low-Speed Compressor Tandem Stator

Mattia Straccia, Samuele Giannini, Volker Gümmer
Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT32A027, June 13–17, 2022
Paper No: GT2022-82418
https://doi.org/10.1115/GT2022-82418
View Paper titled, Analysis of Cavity Leakage Effects on Coupled Non-Axisymmetric Endwall-Airfoil Optimization in a Low-Speed Compressor Tandem Stator
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Topics: Airfoils, Cavities, Compressors, Leakage, Optimization, Stators, Flow (Dynamics), Design, Leakage flows, Geometry
Proceedings Papers

Validation of an Analytical Model for the Acoustic Impedance Eduction of Multi-Cavity Resonant Liners by a High-Fidelity LES Approach

Simone Giaccherini, Lorenzo Pinelli, Michele Marconcini, Roberto Pacciani, Andrea Arnone
Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT33A007, June 13–17, 2022
Paper No: GT2022-81984
https://doi.org/10.1115/GT2022-81984
View Paper titled, Validation of an Analytical Model for the Acoustic Impedance Eduction of Multi-Cavity Resonant Liners by a High-Fidelity LES Approach
Open the PDF for Validation of an Analytical Model for the Acoustic Impedance Eduction of Multi-Cavity Resonant Liners by a High-Fidelity LES Approach in another window
Topics: Acoustics, Cavities, Resonance, Design, Emissions, Engineering simulation, Noise (Sound), Simulation, Absorption, Air traffic control
Proceedings Papers

Design Optimization of Blade Tip in Subsonic and Transonic Turbine Stages - Part II: Flow Physics and Augmented Aerothermal Integral Objective Function

Penghao Duan, Li He
Proc. ASME. GT2022, Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, V10DT34A023, June 13–17, 2022
Paper No: GT2022-83467
https://doi.org/10.1115/GT2022-83467
View Paper titled, Design Optimization of Blade Tip in Subsonic and Transonic Turbine Stages - Part II: Flow Physics and Augmented Aerothermal Integral Objective Function
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Topics: Blades, Design, Flow (Dynamics), Optimization, Physics, Turbines, Cavities, Heat transfer, Vortices, Platform supply vessels
Proceedings Papers

Characterizing Flow Instabilities During Transient Events in the Turbine Rim Seal Cavity

Maria Rozman, Eric T. DeShong, Reid A. Berdanier, Karen A. Thole, Christopher Robak
Proc. ASME. GT2022, Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, V10DT37A021, June 13–17, 2022
Paper No: GT2022-82664
https://doi.org/10.1115/GT2022-82664
View Paper titled, Characterizing Flow Instabilities During Transient Events in the Turbine Rim Seal Cavity
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Topics: Cavities, Flow instability, Transients (Dynamics), Turbines, Flow (Dynamics), Aircraft engines, Cooling, Cycles, Design, Energy generation
Proceedings Papers

ICME Modeling of Erosion in Gas-Turbine Grade CMC and HVOF Test

Frank Abdi, Amirhossein Eftekharian, Dade Huang, Sung Choi, Gregory N. Morscher, Ragavendra P. Panakarajupally
Proc. ASME. GT2022, Volume 1: Aircraft Engine; Ceramics and Ceramic Composites, V001T02A009, June 13–17, 2022
Paper No: GT2022-83279
https://doi.org/10.1115/GT2022-83279
View Paper titled, ICME Modeling of Erosion in Gas-Turbine Grade CMC and HVOF Test
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Topics: Cavities, Ceramic matrix composites, Erosion, Gas turbines, Microcracks, Modeling, Temperature
Proceedings Papers

Vortex-Generators Reduce the Dynamic Axial Forces in the Model of a Steam Turbine Control Valve

Stefan Wallat, Christian Musch, Dieter Brillert
Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T20A007, June 13–17, 2022
Paper No: GT2022-80688
https://doi.org/10.1115/GT2022-80688
View Paper titled, Vortex-Generators Reduce the Dynamic Axial Forces in the Model of a Steam Turbine Control Valve
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Topics: Generators, Steam turbines, Valves, Vortices, Acoustics, Excitation, Cavities, Flow (Dynamics), Diffusers, Pressure
Proceedings Papers

Interplay of Clusters of Acoustic and Intrinsic Thermoacoustic Modes in Can-Annular Combustors

Guillaume J. J. Fournier, Felicitas Schaefer, Matthias Haeringer, Camilo F. Silva, Wolfgang Polifke
Proc. ASME. GT2022, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A026, June 13–17, 2022
Paper No: GT2022-80785
https://doi.org/10.1115/GT2022-80785
View Paper titled, Interplay of Clusters of Acoustic and Intrinsic Thermoacoustic Modes in Can-Annular Combustors
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Topics: Acoustics, Combustion chambers, Cavities, Dimensionless numbers, Eigenvalues, Flames, Flow (Dynamics), Gas turbines, Network models, Switches