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Proceedings Papers

NASA HECC Geometry and Performance Review Part 2: Geometric Differences Between the As-Manufactured and Design-Intent Impeller Geometry and Their Effects on the Vaneless Diffuser Configuration Performance

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Gregorio Robles Vega, Alec J. Bosshart, Michael Ni, Ron-Ho Ni, Herbert M. Harrison, Tammy Nguyen-Huynh
Proc. ASME. GT2024, Volume 12D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V12DT35A012, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-125360
https://doi.org/10.1115/GT2024-125360
View Paper titled, NASA HECC Geometry and Performance Review Part 2: Geometric Differences Between the As-Manufactured and Design-Intent Impeller Geometry and Their Effects on the Vaneless Diffuser Configuration Performance
Open the PDF for NASA HECC Geometry and Performance Review Part 2: Geometric Differences Between the As-Manufactured and Design-Intent Impeller Geometry and Their Effects on the Vaneless Diffuser Configuration Performance in another window
Topics: Design, Geometry, Impellers, NASA, Performance evaluation, Vaneless diffusers, Blades, Computer simulation, Clearances (Engineering), Compressors
Proceedings Papers

NASA HECC Geometry and Performance Review Part 1: Validation of a Computational Model for the Vaneless Diffuser Configuration With As-Manufactured Impeller Geometry

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Gregorio Robles Vega, Alec J. Bosshart, Michael Ni, Ron-Ho Ni, Herbert M. Harrison, Tammy Nguyen-Huynh
Proc. ASME. GT2024, Volume 12D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V12DT35A011, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-125128
https://doi.org/10.1115/GT2024-125128
View Paper titled, NASA HECC Geometry and Performance Review Part 1: Validation of a Computational Model for the Vaneless Diffuser Configuration With As-Manufactured Impeller Geometry
Open the PDF for NASA HECC Geometry and Performance Review Part 1: Validation of a Computational Model for the Vaneless Diffuser Configuration With As-Manufactured Impeller Geometry in another window
Topics: Compressors, Computer simulation, Geometry, Impellers, NASA, Performance evaluation, Vaneless diffusers, Engineering simulation, Simulation, Computer-aided design
Proceedings Papers

Vaneless Diffuser Modelling for Real Gas Supercritical Carbon Dioxide Flows- Need for a Data Driven Approach

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Lakshminarayanan Seshadri, Pramod Kumar
Proc. ASME. GT2024, Volume 11: Supercritical CO2, V011T28A021, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-126308
https://doi.org/10.1115/GT2024-126308
View Paper titled, Vaneless Diffuser Modelling for Real Gas Supercritical Carbon Dioxide Flows- Need for a Data Driven Approach
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Topics: Compressors, Flow (Dynamics), Modeling, Supercritical carbon dioxide, Vaneless diffusers
Proceedings Papers

Centrifugal Compressor Casing Treatment Design for a Turbocharged Hydrogen Combustion Engine

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Lee Gibson, Thomas Leonard, Georgios Iosifidis, Dario-Vincenzo Di Modica, Johannes Ratz, Takahiro Ueno
Proc. ASME. GT2024, Volume 12D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V12DT35A018, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-127906
https://doi.org/10.1115/GT2024-127906
View Paper titled, Centrifugal Compressor Casing Treatment Design for a Turbocharged Hydrogen Combustion Engine
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Topics: Combustion, Compressors, Design, Engines, Hydrogen, Turbochargers, Vaneless diffusers
Proceedings Papers

NASA HECC Geometry and Performance Review Part 3: A Numerical and Experimental Investigation of Tip Clearance Effects on the Vaneless Diffuser Configuration

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Herbert M. Harrison, Tammy Nguyen-Huynh, Randall M. Mathison
Proc. ASME. GT2024, Volume 12D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V12DT35A001, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-121641
https://doi.org/10.1115/GT2024-121641
View Paper titled, NASA HECC Geometry and Performance Review Part 3: A Numerical and Experimental Investigation of Tip Clearance Effects on the Vaneless Diffuser Configuration
Open the PDF for NASA HECC Geometry and Performance Review Part 3: A Numerical and Experimental Investigation of Tip Clearance Effects on the Vaneless Diffuser Configuration in another window
Topics: Clearances (Engineering), Geometry, NASA, Performance evaluation, Vaneless diffusers
Proceedings Papers

NASA Small Engine Components Compressor Test Facility: High Efficiency Centrifugal Compressor Vaneless Diffuser and Transition Duct Configurations

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Herbert M. Harrison, Ezra O. McNichols, Matthew R. Blaha
Proc. ASME. GT2023, Volume 13D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V13DT35A018, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103128
https://doi.org/10.1115/GT2023-103128
View Paper titled, NASA Small Engine Components Compressor Test Facility: High Efficiency Centrifugal Compressor Vaneless Diffuser and Transition Duct Configurations
Open the PDF for NASA Small Engine Components Compressor Test Facility: High Efficiency Centrifugal Compressor Vaneless Diffuser and Transition Duct Configurations in another window
Topics: Compressors, Ducts, Engines, NASA, Test facilities, Vaneless diffusers
Proceedings Papers

Method of the Vaneless Diffuser Rotating Stall Cell Size Assessment Based on the PIV Measurements

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Filip Grapow, Grzegorz Liśkiewicz, Władysław Kryłłowicz
Proc. ASME. GT2022, Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, V10DT37A028, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-83036
https://doi.org/10.1115/GT2022-83036
View Paper titled, Method of the Vaneless Diffuser Rotating Stall Cell Size Assessment Based on the PIV Measurements
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Topics: Compressors, Vaneless diffusers
Proceedings Papers

Interaction Mechanism of Impeller and Diffuser Stall in a Centrifugal Compressor

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Nobumichi Fujisawa, Momoko Naitou, Yutaka Ohta
Proc. ASME. GT2022, Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, V10DT37A025, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82861
https://doi.org/10.1115/GT2022-82861
View Paper titled, Interaction Mechanism of Impeller and Diffuser Stall in a Centrifugal Compressor
Open the PDF for Interaction Mechanism of Impeller and Diffuser Stall in a Centrifugal Compressor in another window
Topics: Compressors, Diffusers, Impellers, Vaneless diffusers
Proceedings Papers

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

Open Access

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

Comparison Study on Stage Performance of Centrifugal Compressors With Shrouded and Unshrouded Impellers

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Guang Xi, Chenxi Zhao, Yonghong Tang, Zhiheng Wang
Proc. ASME. GT2021, Volume 2D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V02DT37A013, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59902
https://doi.org/10.1115/GT2021-59902
View Paper titled, Comparison Study on Stage Performance of Centrifugal Compressors With Shrouded and Unshrouded Impellers
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Topics: Compressors, Impellers, Blades, Clearances (Engineering), Design, Geometry, Centrifugal force, Computational fluid dynamics, Flow (Dynamics), Leakage
Proceedings Papers

Rotating Mechanism of Diffuser Stall in a Centrifugal Compressor With Vaneless Diffuser

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Nobumichi Fujisawa, Yuki Agari, Yoshifumi Yamao, Yutaka Ohta
Proc. ASME. GT2021, Volume 2D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V02DT39A010, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59869
https://doi.org/10.1115/GT2021-59869
View Paper titled, Rotating Mechanism of Diffuser Stall in a Centrifugal Compressor With Vaneless Diffuser
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Topics: Compressors, Diffusers, Vaneless diffusers
Proceedings Papers

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

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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

Numerical and Experimental Study on Rotating Stall in Industrial Centrifugal Compressor

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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
Open the PDF for Numerical and Experimental Study on Rotating Stall in Industrial Centrifugal Compressor in another window
Topics: Compressors, Vibration, Simulation, Computational fluid dynamics, Pressure, Impellers, Rotation, Vaneless diffusers, Aerodynamics, Annulus
Proceedings Papers

Criteria for the Stability Limit Prediction of High Speed Centrifugal Compressors With Vaneless Diffuser: Part I — Flow Structure Analysis

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Carlo Cravero, Davide Marsano
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET39A013, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14579
https://doi.org/10.1115/GT2020-14579
View Paper titled, Criteria for the Stability Limit Prediction of High Speed Centrifugal Compressors With Vaneless Diffuser: Part I — Flow Structure Analysis
Open the PDF for Criteria for the Stability Limit Prediction of High Speed Centrifugal Compressors With Vaneless Diffuser: Part I — Flow Structure Analysis in another window
Topics: Compressors, Flow (Dynamics), Stability, Vaneless diffusers, Design, Computational fluid dynamics, Diffusers, Engineering simulation, Fluid dynamics, Simulation
Proceedings Papers

An Investigation Into the Effect of Clearance Aspect Ratio on the Performance of a Variable Geometry Vaned Diffuser for Automotive Turbocharger Application

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Lee Gibson, Stephen Spence, Sung In Kim, Charles Stuart, Martin Schwitzke, Andre Starke, Dietmar Filsinger
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET39A019, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14905
https://doi.org/10.1115/GT2020-14905
View Paper titled, An Investigation Into the Effect of Clearance Aspect Ratio on the Performance of a Variable Geometry Vaned Diffuser for Automotive Turbocharger Application
Open the PDF for An Investigation Into the Effect of Clearance Aspect Ratio on the Performance of a Variable Geometry Vaned Diffuser for Automotive Turbocharger Application in another window
Topics: Clearances (Engineering), Diffusers, Geometry, Turbochargers, Compressors, Flow (Dynamics), Design, Engines, Engineering simulation, Impellers
Proceedings Papers

Criteria for the Stability Limit Prediction of High Speed Centrifugal Compressors With Vaneless Diffuser: Part II — The Development of Prediction Criteria

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Carlo Cravero, Davide Marsano
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET39A014, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14589
https://doi.org/10.1115/GT2020-14589
View Paper titled, Criteria for the Stability Limit Prediction of High Speed Centrifugal Compressors With Vaneless Diffuser: Part II — The Development of Prediction Criteria
Open the PDF for Criteria for the Stability Limit Prediction of High Speed Centrifugal Compressors With Vaneless Diffuser: Part II — The Development of Prediction Criteria in another window
Topics: Compressors, Stability, Vaneless diffusers, Design, Surges, Computational fluid dynamics, Computer simulation, Diffusers, Dynamic analysis, Fluids
Proceedings Papers

Experimental Study of Vaneless Diffuser Rotating Stall Development and Cell Merging Phenomena

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Filip Grapow, Krzysztof Olasek, Grzegorz Liśkiewicz, Radomir Magiera, Władysław Kryłłowicz
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET41A030, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15602
https://doi.org/10.1115/GT2020-15602
View Paper titled, Experimental Study of Vaneless Diffuser Rotating Stall Development and Cell Merging Phenomena
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Topics: Compressors, Vaneless diffusers
Proceedings Papers

Unsteady Modeling of Turbochargers for Automotive Applications by Means of a Quasi-3D Approach

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Gianluca Montenegro, Matteo Tamborski, Augusto Della Torre, Angelo Onorati, Silvia Marelli
Proc. ASME. GT2020, Volume 8: Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Marine; Microturbines, Turbochargers, and Small Turbomachines, V008T20A013, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14968
https://doi.org/10.1115/GT2020-14968
View Paper titled, Unsteady Modeling of Turbochargers for Automotive Applications by Means of a Quasi-3D Approach
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Topics: Automotive industry, Compressors, Modeling, Turbochargers, Momentum, Design, Flow (Dynamics), Impellers, Unsteady flow, Angular momentum
Proceedings Papers

Wet Gas Compressor Modeling and Performance Scaling

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Martin Bakken, Tor Bjørge, Lars E. Bakken, Ajay Lakshmanan, Suriya Arulselvan
Proc. ASME. GT2019, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T27A015, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90353
https://doi.org/10.1115/GT2019-90353
View Paper titled, Wet Gas Compressor Modeling and Performance Scaling
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Topics: Gas compressors, Modeling, Compressors, Gas flow, Test facilities, Water, Design, Dynamics (Mechanics), Flow (Dynamics), Impellers
Proceedings Papers

Wet Gas Compressor Model Validation

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Martin Bakken, Tor Bjørge, Lars E. Bakken
Proc. ASME. GT2019, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T27A016, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90354
https://doi.org/10.1115/GT2019-90354
View Paper titled, Wet Gas Compressor Model Validation
Open the PDF for Wet Gas Compressor Model Validation in another window
Topics: Gas compressors, Model validation, Valves, Dynamic models, Ocean engineering, Test facilities, Transients (Dynamics), Compression, Compressors, Design