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Proceedings Papers

Prediction in Rotor-Stator Cavities at High Reynolds Numbers up to Re ≈ 2·10 8 : Towards a New Parametric Model

Tilman Raphael Schröder, Sebastian Schuster, Dieter Brillert
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET39A001, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14010
https://doi.org/10.1115/GT2020-14010
View Paper titled, Prediction in Rotor-Stator Cavities at High Reynolds Numbers up to Re ≈ 2·10 8 : Towards a New Parametric Model
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Topics: Cavities, Reynolds number, Rotors, Stators, Thrust, Flow (Dynamics), Stress, Torque, Bearings, Compressors
Proceedings Papers

Numerical Characterization of the Performance Curve of a Regenerative Pump-As-Turbine

Giulio Cantini, Simone Salvadori
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET39A008, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14287
https://doi.org/10.1115/GT2020-14287
View Paper titled, Numerical Characterization of the Performance Curve of a Regenerative Pump-As-Turbine
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Topics: Computational fluid dynamics, Pumps, Turbines
Proceedings Papers

Loss and Thrust Modeling of Rocket Engine High Density Turbopumps

Jonathan Gloger, Claudio Lettieri, Louis Souverein
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET39A022, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15428
https://doi.org/10.1115/GT2020-15428
View Paper titled, Loss and Thrust Modeling of Rocket Engine High Density Turbopumps
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Topics: Computational fluid dynamics, Density, Modeling, Rocket engines, Thrust
Proceedings Papers

Performance Characteristics of a Centrifugal Compressor With Capacity Control by Variable Diffuser Vanes

Kangsoo Im, Jongsik Jeong
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET39A029, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-16255
https://doi.org/10.1115/GT2020-16255
View Paper titled, Performance Characteristics of a Centrifugal Compressor With Capacity Control by Variable Diffuser Vanes
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Topics: Compressors, Diffusers, Performance characterization
Proceedings Papers

Effects of Non-Axisymmetric Volute on Rotating Stall in the Vaneless Diffuser of a Centrifugal Compressor

Zitian Niu, Zhenzhong Sun, Baotong Wang, Xinqian Zheng
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET39A015, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14729
https://doi.org/10.1115/GT2020-14729
View Paper titled, Effects of Non-Axisymmetric Volute on Rotating Stall in the Vaneless Diffuser of a Centrifugal Compressor
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Topics: Compressors, Vaneless diffusers, Flow (Dynamics), Computer simulation, Impellers, Geometry, Numerical analysis, Stability
Proceedings Papers

Size and Reynolds Number Effects on Compressor Performance and Scaling

Hua Chen
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET39A002, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14019
https://doi.org/10.1115/GT2020-14019
View Paper titled, Size and Reynolds Number Effects on Compressor Performance and Scaling
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Topics: Blades, Compressors, Reynolds number, Turbochargers
Proceedings Papers

Assessment of the Loss Map of a Centrifugal Compressor’s External Volute

Thomas Ceyrowsky, Andre Hildebrandt, Martin Heinrich, Rüdiger Schwarze
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET39A009, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14291
https://doi.org/10.1115/GT2020-14291
View Paper titled, Assessment of the Loss Map of a Centrifugal Compressor’s External Volute
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Topics: Boundary-value problems, Compressors, Computational fluid dynamics, Design, Diffusers, Flow (Dynamics), Impellers, Mach number
Proceedings Papers

A New Approach to Modeling Slip and Work Input for Centrifugal Compressors

Herbert M. Harrison, Nicole L. Key
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET39A003, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14135
https://doi.org/10.1115/GT2020-14135
View Paper titled, A New Approach to Modeling Slip and Work Input for Centrifugal Compressors
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Topics: Compressor impellers, Compressors, Design, Modeling, Impellers, Errors, Flow (Dynamics), Geometry
Proceedings Papers

Design of a Mixed-Flow Transonic Compressor for Active High-Lift System Using a 3D Inverse Design Methodology

Peng Wang, Maria Vera-Morales, Patrick La, Mehrdad Zangeneh, Niklas Maroldt, Ole Willers, Felix Kauth, Jörg Seume
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET39A023, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15645
https://doi.org/10.1115/GT2020-15645
View Paper titled, Design of a Mixed-Flow Transonic Compressor for Active High-Lift System Using a 3D Inverse Design Methodology
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Topics: Compressors, Design, Design methodology, Flow (Dynamics)
Proceedings Papers

Influence of Splitter Blades on the Performance of a Single-Stage Centrifugal Compressor With Pressure Ratio 12.0

Wenchao Zhang, Zhenzhong Sun, Baotong Wang, Xinqian Zheng
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET39A016, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14733
https://doi.org/10.1115/GT2020-14733
View Paper titled, Influence of Splitter Blades on the Performance of a Single-Stage Centrifugal Compressor With Pressure Ratio 12.0
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Topics: Blades, Compressors, Pressure, Flow (Dynamics), Clearances (Engineering), Flow separation, Shock waves, Chords (Trusses), Computational fluid dynamics, Impellers
Proceedings Papers

Performance Improvement of a Mixed Flow Turbine Using 3D Blading

Matthew Elliott, Stephen Spence, Martin Seiler, Marco Geron
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET39A030, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-16272
https://doi.org/10.1115/GT2020-16272
View Paper titled, Performance Improvement of a Mixed Flow Turbine Using 3D Blading
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Topics: Flow (Dynamics), Turbines, Blades, Design, Optimization, Shapes, Wheels, Geometry, Stress, Diffusers
Proceedings Papers

Numerical and Experimental Study on Rotating Stall in Industrial Centrifugal Compressor

Toshimasa Miura, Hideaki Yamashita, Ryota Takeuchi, Naoto Sakai
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET39A010, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14448
https://doi.org/10.1115/GT2020-14448
View Paper titled, Numerical and Experimental Study on Rotating Stall in Industrial Centrifugal Compressor
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Topics: Compressors, Vibration, Simulation, Computational fluid dynamics, Pressure, Impellers, Rotation, Vaneless diffusers, Aerodynamics, Annulus
Proceedings Papers

Numerical and Experimental Investigation of a Low Order Radial Turbine Model for Engine-Level Optimisation of Turbocharger Design

Karl Hohenberg, Ricardo Martinez-Botas, Piotr Łuczyński, Carola Freytag, Manfred Wirsum
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET39A024, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15698
https://doi.org/10.1115/GT2020-15698
View Paper titled, Numerical and Experimental Investigation of a Low Order Radial Turbine Model for Engine-Level Optimisation of Turbocharger Design
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Topics: Design, Engines, Optimization, Turbines, Turbochargers, Accounting, Dynamometers, Errors, Experimental methods, Flow (Dynamics)
Proceedings Papers

Experimental and Numerical Study of an Open Impeller Centrifugal Compressor Stage Utilising 3D Diffuser End Wall Contouring for Operating Range Extension

Daniel Hermann, Manfred Wirsum, Douglas Robinson, Philipp Jenny
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET39A017, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14782
https://doi.org/10.1115/GT2020-14782
View Paper titled, Experimental and Numerical Study of an Open Impeller Centrifugal Compressor Stage Utilising 3D Diffuser End Wall Contouring for Operating Range Extension
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Topics: Compressors, Diffusers, Impellers, Design, Flow (Dynamics), Mach number, Blades, Stability, Computation, Computational fluid dynamics
Proceedings Papers

Numerical Investigation of Effect of Blade Surface Slot on the Performance and Flow Field of a Low Speed Centrifugal Fan

HaoGuang Zhang, FeiYang Dong, XuDong Zhang, WuLi Chu
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET39A011, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14472
https://doi.org/10.1115/GT2020-14472
View Paper titled, Numerical Investigation of Effect of Blade Surface Slot on the Performance and Flow Field of a Low Speed Centrifugal Fan
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Topics: Blades, Flow (Dynamics), Impellers, Suction, Boundary layers, Pressure, Vortices, Design, Separation (Technology), Wakes
Proceedings Papers

Performance and Losses Analysis for Radial Turbine Featuring a Multi-Channel Casing Design

Ahmed Farid Hassan, Markus Schatz, Damian M. Vogt
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET39A031, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-16298
https://doi.org/10.1115/GT2020-16298
View Paper titled, Performance and Losses Analysis for Radial Turbine Featuring a Multi-Channel Casing Design
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Topics: Design, Turbines, Computational fluid dynamics, Flow (Dynamics), Turbochargers, Engineering simulation, Internal flow, Rotors, Simulation, Simulation results
Proceedings Papers

Gradient-Based Optimization of a Radial Turbine Volute and a Downstream Bend Using Vertex Morphing

Nicolas Lachenmaier, Daniel Baumgärtner, Heinz-Peter Schiffer, Johannes Kech
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET39A004, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14145
https://doi.org/10.1115/GT2020-14145
View Paper titled, Gradient-Based Optimization of a Radial Turbine Volute and a Downstream Bend Using Vertex Morphing
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Topics: Optimization, Turbines, Pressure, Compressors, Cycles, Design, Fuel consumption, Geometry, Internal combustion engines, Pressure drop
Proceedings Papers

The Impact of Various Modelling Decisions on Flow Field Predictions in a Centrifugal Compressor

William J. Gooding, Matthew A. Meier, Nicole L. Key
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET39A012, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14516
https://doi.org/10.1115/GT2020-14516
View Paper titled, The Impact of Various Modelling Decisions on Flow Field Predictions in a Centrifugal Compressor
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Topics: Compressors, Diffusers, Flow (Dynamics), Modeling
Proceedings Papers

Preliminary Study of a Centrifugal Compressor With Counter-Rotating Impellers: Design and Performances Study

Abed Cheikh Brahim, Khelladi Sofiane, Deligant Michael, El Marjani Abdel, Farid Bakir
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET39A025, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15860
https://doi.org/10.1115/GT2020-15860
View Paper titled, Preliminary Study of a Centrifugal Compressor With Counter-Rotating Impellers: Design and Performances Study
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Topics: Compressors, Design, Impellers, Machinery, Turbomachinery, Computer simulation, Degrees of freedom, Diffusers, Engineering design processes, Flow (Dynamics)
Proceedings Papers

Numerical Simulation of a Radial Turbine at Off-Design Conditions in Presence of Choked Flow

Andrés Tiseira, Luis Miguel García-Cuevas, Lukas Benjamin Inhestern, Juan David Echavarría
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET39A018, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14902
https://doi.org/10.1115/GT2020-14902
View Paper titled, Numerical Simulation of a Radial Turbine at Off-Design Conditions in Presence of Choked Flow
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Topics: Computer simulation, Design, Flow (Dynamics), Turbines, Organic Rankine cycle, Rotors, Stators, Turbochargers, Shock waves, Blades