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Journal Articles

Some Properties of the Exit Velocity Triangle of a Radial Compressor Impeller

Michael Casey, Christopher Robinson
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2023, 145(5): 051007.
Paper No: TURBO-22-1225
https://doi.org/10.1115/1.4056088
Published Online: November 25, 2022
View Article titled, Some Properties of the Exit Velocity Triangle of a Radial Compressor Impeller
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Topics: Flow (Dynamics), Impellers, Diffusers, Design
Proceedings Papers

Some Properties of the Exit Velocity Triangle of a Radial Compressor Impeller

Michael Casey, Chris Robinson
Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT35A003, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-79368
https://doi.org/10.1115/GT2022-79368
View Paper titled, Some Properties of the Exit Velocity Triangle of a Radial Compressor Impeller
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Topics: Compressor impellers, Compressors, Design, Impellers, Flow (Dynamics), Diffusers, Computational fluid dynamics, Stability, Teaching, Vaneless diffusers
Proceedings Papers

Reynolds Number and Roughness Effects on Turbocompressor Performance: Numerical Calculations and Measurement Data Evaluation

Fabian Dietmann, Michael Casey, Damian M. Vogt
Proc. ASME. GT2020, Volume 2C: Turbomachinery, V02CT35A016, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14653
https://doi.org/10.1115/GT2020-14653
View Paper titled, Reynolds Number and Roughness Effects on Turbocompressor Performance: Numerical Calculations and Measurement Data Evaluation
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Topics: Reynolds number, Surface roughness, Flow (Dynamics), Compressors, Design, Energy dissipation, Machinery
Journal Articles

Effect of Leakage Flows on the Performance of a Family of Inline Centrifugal Compressors

Hamid Hazby, Michael Casey, Luboš Březina
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. September 2019, 141(9): 091006.
Paper No: TURBO-18-1347
https://doi.org/10.1115/1.4043786
Published Online: June 3, 2019
View Article titled, Effect of Leakage Flows on the Performance of a Family of Inline Centrifugal Compressors
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Topics: Compressors, Computational fluid dynamics, Flow (Dynamics), Impellers, Leakage, Leakage flows, Cavities
Journal Articles

Free-Form Versus Ruled Inducer Design in a Transonic Centrifugal Impeller

Hamid Hazby, Chris Robinson, Michael Casey, Daniel Rusch, Rene Hunziker
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. January 2018, 140(1): 011010.
Paper No: TURBO-17-1173
https://doi.org/10.1115/1.4038176
Published Online: October 31, 2017
View Article titled, Free-Form Versus Ruled Inducer Design in a Transonic Centrifugal Impeller
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Topics: Design, Flow (Dynamics), Impellers, Blades
Proceedings Papers

Free-Form Versus Ruled Inducer Design in a Transonic Centrifugal Impeller

Hamid Hazby, Chris Robinson, Michael Casey, Daniel Rusch, Rene Hunziker
Proc. ASME. GT2017, Volume 2C: Turbomachinery, V02CT44A012, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-63538
https://doi.org/10.1115/GT2017-63538
View Paper titled, Free-Form Versus Ruled Inducer Design in a Transonic Centrifugal Impeller
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Topics: Design, Impellers, Chords (Trusses), Compressor impellers, Computational fluid dynamics, Degrees of freedom, Diffusers, Engineering simulation, Flow (Dynamics), High pressure (Physics)
Journal Articles

Effects of Blade Deformation on the Performance of a High Flow Coefficient Mixed Flow Impeller

Hamid Hazby, Ian Woods, Michael Casey, Ryusuke Numakura, Hideaki Tamaki
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. December 2015, 137(12): 121005.
Paper No: TURBO-15-1149
https://doi.org/10.1115/1.4031356
Published Online: September 23, 2015
View Article titled, Effects of Blade Deformation on the Performance of a High Flow Coefficient Mixed Flow Impeller
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Topics: Blades, Deformation, Flow (Dynamics), Geometry, Impellers, Pressure, Stress, Design
Proceedings Papers

Effects of Blade Deformation on the Performance of a High Flow Coefficient Mixed Flow Impeller

Hamid Hazby, Ian Woods, Michael Casey, Ryusuke Numakura, Hideaki Tamaki
Proc. ASME. GT2015, Volume 2C: Turbomachinery, V02CT42A004, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-42079
https://doi.org/10.1115/GT2015-42079
View Paper titled, Effects of Blade Deformation on the Performance of a High Flow Coefficient Mixed Flow Impeller
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Topics: Blades, Deformation, Flow (Dynamics), Impellers, Geometry, Pressure, Stress, Clearances (Engineering), Fluids
Journal Articles

A Transonic Mixed Flow Compressor for an Extreme Duty

Hamid Hazby, Michael Casey, Ryusuke Numakura, Hideaki Tamaki
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. May 2015, 137(5): 051010.
Paper No: TURBO-14-1231
https://doi.org/10.1115/1.4028738
Published Online: May 1, 2015
View Article titled, A Transonic Mixed Flow Compressor for an Extreme Duty
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Topics: Compressors, Design, Flow (Dynamics), Impellers, Pressure, Blades
Proceedings Papers

Effect of a Recirculation Device on the Performance of Transonic Mixed Flow Compressors

Ryusuke Numakura, Hideaki Tamaki, Hamid Hazby, Michael Casey
Proc. ASME. GT2014, Volume 2D: Turbomachinery, V02DT42A009, June 16–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: GT2014-25365
https://doi.org/10.1115/GT2014-25365
View Paper titled, Effect of a Recirculation Device on the Performance of Transonic Mixed Flow Compressors
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Topics: Compressors, Flow (Dynamics), Impellers, Cavities, Computational fluid dynamics, Engineering simulation, Pressure, Simulation, Design, Mach number
Proceedings Papers

A Transonic Mixed Flow Compressor for an Extreme Duty

Hamid Hazby, Michael Casey, Ryusuke Numakura, Hideaki Tamaki
Proc. ASME. GT2014, Volume 2D: Turbomachinery, V02DT42A010, June 16–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: GT2014-25378
https://doi.org/10.1115/GT2014-25378
View Paper titled, A Transonic Mixed Flow Compressor for an Extreme Duty
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Topics: Compressors, Flow (Dynamics), Design, Blades, Computational fluid dynamics, Design methodology, Engineering prototypes, Impellers, Optimization, Pressure
Proceedings Papers

The Matching of a Vaned Diffuser With a Radial Compressor Impeller and its Effect on the Stage Performance

Michael Casey, Daniel Rusch
Proc. ASME. GT2014, Volume 2D: Turbomachinery, V02DT42A001, June 16–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: GT2014-25003
https://doi.org/10.1115/GT2014-25003
View Paper titled, The Matching of a Vaned Diffuser With a Radial Compressor Impeller and its Effect on the Stage Performance
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Topics: Compressor impellers, Diffusers, Impellers, Compressors, Design, Mach number, Flow (Dynamics), High pressure (Physics), Turbochargers
Journal Articles

The Matching of a Vaned Diffuser With a Radial Compressor Impeller and Its Effect on the Stage Performance

Michael Casey, Daniel Rusch
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. December 2014, 136(12): 121004.
Paper No: TURBO-14-1130
https://doi.org/10.1115/1.4028218
Published Online: August 26, 2014
View Article titled, The Matching of a Vaned Diffuser With a Radial Compressor Impeller and Its Effect on the Stage Performance
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Topics: Design, Diffusers, Flow (Dynamics), Impellers, Mach number, Compressors
Journal Articles

The Variable Outlet Turbine Concept for Turbochargers

Elias Chebli, Michael Casey, Ricardo Martinez-Botas, Siegfried Sumser, Markus Müller, Stefan Künzel, Johannes Leweux, Andreas Gorbach, Wolfram Schmidt
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. December 2014, 136(12): 121001.
Paper No: TURBO-14-1105
https://doi.org/10.1115/1.4028231
Published Online: August 26, 2014
View Article titled, The Variable Outlet Turbine Concept for Turbochargers
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Topics: Engines, Flow (Dynamics), Turbines, Pressure, Impellers, Computational fluid dynamics
Proceedings Papers

Prediction of Flow in an Exhaust Gas Turbine Diffuser With a Scale-Adaptive Simulation Model

Silke Volkmer, Markus Schatz, Michael Casey, Matthew Montgomery
Proc. ASME. GT2013, Volume 6B: Turbomachinery, V06BT37A021, June 3–7, 2013
Publisher: American Society of Mechanical Engineers
Paper No: GT2013-94954
https://doi.org/10.1115/GT2013-94954
View Paper titled, Prediction of Flow in an Exhaust Gas Turbine Diffuser With a Scale-Adaptive Simulation Model
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Topics: Diffusers, Exhaust systems, Flow (Dynamics), Gas turbines, Simulation models, Simulation, Separation (Technology), Computational fluid dynamics, Reynolds-averaged Navier–Stokes equations, Boundary layers
Proceedings Papers

A New Partial Admission Method for Turbocharger Turbine Control at Off-Design

Sebastian Challand, Eckart Dirschauer, Mirko Ilievski, Michael Casey, Markus Schatz
Proc. ASME. GT2013, Volume 5A: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Marine; Microturbines, Turbochargers, and Small Turbomachines, V05AT23A022, June 3–7, 2013
Publisher: American Society of Mechanical Engineers
Paper No: GT2013-95441
https://doi.org/10.1115/GT2013-95441
View Paper titled, A New Partial Admission Method for Turbocharger Turbine Control at Off-Design
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Topics: Design, Turbines, Turbochargers, Flow (Dynamics), Nozzles, Computational fluid dynamics, Ducts, Exhaust systems, Valves, Automotive industry
Proceedings Papers

Impeller-Diffuser Interaction in Centrifugal Compressors

Chris Robinson, Michael Casey, Brad Hutchinson, Robin Steed
Proc. ASME. GT2012, Volume 8: Turbomachinery, Parts A, B, and C, 767-777, June 11–15, 2012
Publisher: American Society of Mechanical Engineers
Paper No: GT2012-69151
https://doi.org/10.1115/GT2012-69151
View Paper titled, Impeller-Diffuser Interaction in Centrifugal Compressors
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Topics: Compressors, Diffusers, Impellers, Rotors, Simulation, Stators, Transients (Dynamics), Annulus, Blades, Computational fluid dynamics
Proceedings Papers

Hub Injection Flow Control in a Turbine Exhaust Diffuser

Silke Volkmer, Benjamin Kuschel, Andreas Hirschmann, Markus Schatz, Michael Casey, Matthew Montgomery
Proc. ASME. GT2012, Volume 8: Turbomachinery, Parts A, B, and C, 1713-1723, June 11–15, 2012
Publisher: American Society of Mechanical Engineers
Paper No: GT2012-69713
https://doi.org/10.1115/GT2012-69713
View Paper titled, Hub Injection Flow Control in a Turbine Exhaust Diffuser
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Topics: Diffusers, Exhaust systems, Flow control, Turbines, Flow (Dynamics), Wakes, Separation (Technology), Computational fluid dynamics, Combined cycle gas turbines, Computation
Proceedings Papers

The Design Space Boundaries for High Flow Capacity Centrifugal Compressors

Daniel Rusch, Michael Casey
Proc. ASME. GT2012, Volume 8: Turbomachinery, Parts A, B, and C, 543-556, June 11–15, 2012
Publisher: American Society of Mechanical Engineers
Paper No: GT2012-68105
https://doi.org/10.1115/GT2012-68105
View Paper titled, The Design Space Boundaries for High Flow Capacity Centrifugal Compressors
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Topics: Compressors, Design, Flow (Dynamics), Boundary-value problems, Geometry, Impellers, Mach number, Pressure, Risk, Turbomachinery
Journal Articles

The Design Space Boundaries for High Flow Capacity Centrifugal Compressors

Daniel Rusch, Michael Casey
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. May 2013, 135(3): 031035.
Paper No: TURBO-12-1170
https://doi.org/10.1115/1.4007548
Published Online: March 25, 2013
View Article titled, The Design Space Boundaries for High Flow Capacity Centrifugal Compressors
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Topics: Compressors, Design, Flow (Dynamics), Impellers, Mach number, Pressure