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Proceedings Papers

3D Modelling of a Hydraulic Seal With an Oil Feed, Focussing on the Effect of the Jet on the Behaviour of Oil in the Trough

Achinie Warusevitane, Rajab Omar, Kathy Johnson, Stephen Ambrose
Proc. ASME. GT2023, Volume 11A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics, V11AT22A033, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103935
https://doi.org/10.1115/GT2023-103935
View Paper titled, 3D Modelling of a Hydraulic Seal With an Oil Feed, Focussing on the Effect of the Jet on the Behaviour of Oil in the Trough
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Topics: Aircraft engines, Cavities, Centrifugal force, Computational fluid dynamics, Computer simulation, Drops, Film thickness, Flow (Dynamics), Fluids, Fuel oils
Proceedings Papers

Effect of Reduced Oil Flow Rate on the Performance of a Load on Pad Journal Bearing: Flooded vs. Evacuated Conditions

Luis San Andrés, Zihan Ouyang, Yudi Qin
Proc. ASME. GT2023, Volume 11A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics, V11AT22A025, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103242
https://doi.org/10.1115/GT2023-103242
View Paper titled, Effect of Reduced Oil Flow Rate on the Performance of a Load on Pad Journal Bearing: Flooded vs. Evacuated Conditions
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Topics: Bearings, Flow (Dynamics), Journal bearings, Stress, Drag (Fluid dynamics), Damping, Temperature, Babbitt metal, Energy consumption, Failure
Proceedings Papers

Guidelines for the Aerodynamic Design of sCO 2 Centrifugal Compressor Stages

Alessandro Romei, Paolo Gaetani, Giacomo Persico
Proc. ASME. GT2023, Volume 12: Supercritical CO2, V012T28A010, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102106
https://doi.org/10.1115/GT2023-102106
View Paper titled, Guidelines for the Aerodynamic Design of sCO 2 Centrifugal Compressor Stages
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Topics: Compressors, Design, Flow (Dynamics), Carbon dioxide, Optimization, Shapes, Aerodynamics, Compressibility, Density, Engineering design processes
Proceedings Papers

One Dimensional Model to Predict the Total Pressure Loss of Volute for Inward Flow Radial Supercritical CO2 Turbines

Syed Jiaul Hoque, Pramod Kumar, Pramod Chandra Gopi
Proc. ASME. GT2023, Volume 12: Supercritical CO2, V012T28A021, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103179
https://doi.org/10.1115/GT2023-103179
View Paper titled, One Dimensional Model to Predict the Total Pressure Loss of Volute for Inward Flow Radial Supercritical CO2 Turbines
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Topics: Flow (Dynamics), Pressure, Supercritical carbon dioxide, Turbines, Computational fluid dynamics, Errors, Boundary layers, Boundary-value problems, Computer software, Cross section (Physics)
Proceedings Papers

The Prediction of Condensation Characteristics of Supercritical Carbon Dioxide in the Laval Nozzle During Supersonic Flow

Zhe Huang, Xin Shen, Laijie Chen, Hua Ouyang, Zhaohui Du
Proc. ASME. GT2023, Volume 12: Supercritical CO2, V012T28A014, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102436
https://doi.org/10.1115/GT2023-102436
View Paper titled, The Prediction of Condensation Characteristics of Supercritical Carbon Dioxide in the Laval Nozzle During Supersonic Flow
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Topics: Condensation, Flow (Dynamics), Nozzles, Supercritical carbon dioxide, Supersonic flow
Proceedings Papers

Influence of Geometrical and Operational Parameters on the Leakage Flow of a Radial Labyrinth Seal for Application in Inward Flow Radial Supercritical CO2 Turbine

Saurabh Deorao Lanjewar, Arockia Fenil, Pramod Kumar, Pramod Chandra Gopi
Proc. ASME. GT2023, Volume 12: Supercritical CO2, V012T28A025, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103605
https://doi.org/10.1115/GT2023-103605
View Paper titled, Influence of Geometrical and Operational Parameters on the Leakage Flow of a Radial Labyrinth Seal for Application in Inward Flow Radial Supercritical CO2 Turbine
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Topics: Flow (Dynamics), Leakage flows, Pressure, Supercritical carbon dioxide, Turbines
Proceedings Papers

Test Rig Concept for Evaluating the Performance of a CO 2 Immersed Electromechanical Rotor System Utilizing Gas Bearings: Part-2 Thermal Systems & Flow Loop Design

Rahul A. Bidkar, Uttara Kumar, Xiaohua Zhang, Neelesh Sarawate, John Powers, Nevin M. Anandika, Bugra Ertas
Proc. ASME. GT2023, Volume 12: Supercritical CO2, V012T28A028, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103989
https://doi.org/10.1115/GT2023-103989
View Paper titled, Test Rig Concept for Evaluating the Performance of a CO 2 Immersed Electromechanical Rotor System Utilizing Gas Bearings: Part-2 Thermal Systems & Flow Loop Design
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Topics: Carbon dioxide, Design, Flow (Dynamics), Gas bearings, Machinery, Rotors, Thermal analysis, Thermal systems, Turbomachinery
Proceedings Papers

Numerical Investigation of Flow Characteristics in a Supercritical Carbon Dioxide Turbine for 20 Megawatt Brayton Cycle

Guoying Yang, Rui Yang, Qinghua Deng, Bozhou Xu, Jun Li, Zhenping Feng
Proc. ASME. GT2023, Volume 12: Supercritical CO2, V012T28A008, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101767
https://doi.org/10.1115/GT2023-101767
View Paper titled, Numerical Investigation of Flow Characteristics in a Supercritical Carbon Dioxide Turbine for 20 Megawatt Brayton Cycle
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Topics: Axial flow, Brayton cycle, Clearances (Engineering), Flow (Dynamics), Supercritical carbon dioxide, Turbines
Proceedings Papers

Test Rig Concept for Evaluating the Performance of a CO 2 Immersed Electro-Mechanical Rotor System Utilizing Gas Bearings: Part-1 Mechanical and Electric Machine Design

Bugra Ertas, John Powers, Keith Gary, Dave Torrey, Joseph Zierer, Peggy Baehmann, Vandana Rallabandi, Tom Adcock, Nevin Anandika, Rahul A. Bidkar
Proc. ASME. GT2023, Volume 12: Supercritical CO2, V012T28A030, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-104093
https://doi.org/10.1115/GT2023-104093
View Paper titled, Test Rig Concept for Evaluating the Performance of a CO 2 Immersed Electro-Mechanical Rotor System Utilizing Gas Bearings: Part-1 Mechanical and Electric Machine Design
Open the PDF for Test Rig Concept for Evaluating the Performance of a CO 2 Immersed Electro-Mechanical Rotor System Utilizing Gas Bearings: Part-1 Mechanical and Electric Machine Design in another window
Topics: Carbon dioxide, Gas bearings, Machine design, Rotors, Stress, Design, Rotordynamics, Thrust bearings, Turbomachinery, Bearing design
Proceedings Papers

Impact of Non-Axisymmetric Inlet Guide Vane Stagger Angle on the Performance and Stability of a Low-Speed Research Compressor

Kailong Xia, Hefang Deng, Mingmin Zhu, Xiaoqing Qiang, Jinfang Teng, Shaopeng Lu
Proc. ASME. GT2023, Volume 13A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V13AT29A027, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102585
https://doi.org/10.1115/GT2023-102585
View Paper titled, Impact of Non-Axisymmetric Inlet Guide Vane Stagger Angle on the Performance and Stability of a Low-Speed Research Compressor
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Topics: Compressors, Flow (Dynamics), Inlet guide vanes, Stability
Proceedings Papers

Flow Control of Turbine Vane Aerodynamics for Gas Turbine Operability

Priyank A. Dhyani, Gustaaf B. Jacobs, Dan Burnes, Tyson Ferguson
Proc. ASME. GT2023, Volume 13B: Turbomachinery — Axial Flow Turbine Aerodynamics, V13BT30A010, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102015
https://doi.org/10.1115/GT2023-102015
View Paper titled, Flow Control of Turbine Vane Aerodynamics for Gas Turbine Operability
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Topics: Aerodynamics, Flow control, Gas turbines, Turbines, Flow (Dynamics), Nozzles, Jets, Chords (Trusses), Ejectors, Engines
Proceedings Papers

Windage Torque Reduction in Low-Pressure Turbine Cavities - Part 1: Concept Design and Numerical Investigations

Zhihui Li, Loizos Christodoulou, Richard Jefferson-Loveday, Stephen Ambrose, Richard Jackson, Gary D. Lock, Carl M. Sangan, James A. Scobie
Proc. ASME. GT2023, Volume 13B: Turbomachinery — Axial Flow Turbine Aerodynamics, V13BT30A035, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103532
https://doi.org/10.1115/GT2023-103532
View Paper titled, Windage Torque Reduction in Low-Pressure Turbine Cavities - Part 1: Concept Design and Numerical Investigations
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Topics: Cavities, Design, Flow (Dynamics), Flow control, Pressure, Torque, Turbines
Proceedings Papers

A Data-Centric Approach to Loss Mechanisms

Alistair C. Senior, Robert J. Miller
Proc. ASME. GT2023, Volume 13A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V13AT29A020, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101954
https://doi.org/10.1115/GT2023-101954
View Paper titled, A Data-Centric Approach to Loss Mechanisms
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Topics: Compressors, Design, Flow (Dynamics), Machine learning, Turbines, Turbomachinery
Proceedings Papers

Time-Averaged Aerodynamics of a High-Speed Low-Pressure Turbine Cascade With Cavity Purge Flow and Unsteady Wakes

Gustavo Lopes, Loris Simonassi, Sergio Lavagnoli
Proc. ASME. GT2023, Volume 13B: Turbomachinery — Axial Flow Turbine Aerodynamics, V13BT30A022, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102828
https://doi.org/10.1115/GT2023-102828
View Paper titled, Time-Averaged Aerodynamics of a High-Speed Low-Pressure Turbine Cascade With Cavity Purge Flow and Unsteady Wakes
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Topics: Aerodynamics, Cascades (Fluid dynamics), Cavities, Flow (Dynamics), Pressure, Turbines, Wakes
Proceedings Papers

Numerical Investigation of the Interaction of a Circumferential Groove Casing Treatment and Near-Tip Modifications for a Highly-Loaded Low-Speed Rotor Under the Influence of Double Leakage

Lukas Reisinger, Jannik Eckel, Philipp von Jeinsen, Volker Gümmer
Proc. ASME. GT2023, Volume 13A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V13AT29A010, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101545
https://doi.org/10.1115/GT2023-101545
View Paper titled, Numerical Investigation of the Interaction of a Circumferential Groove Casing Treatment and Near-Tip Modifications for a Highly-Loaded Low-Speed Rotor Under the Influence of Double Leakage
Open the PDF for Numerical Investigation of the Interaction of a Circumferential Groove Casing Treatment and Near-Tip Modifications for a Highly-Loaded Low-Speed Rotor Under the Influence of Double Leakage in another window
Topics: Compressors, Flow (Dynamics), Leakage, Rotors, Stability, Vortices, Wake turbulence
Proceedings Papers

Fluid Dynamic Loss Model With Wide Applicability for Aeroengine Transmission Gears

Hidenori Arisawa, Mitsuaki Tanaka, Hironori Hashimoto, Tatsuhiko Goi, Takahiko Banno, Hirofumi Akahori
Proc. ASME. GT2023, Volume 1: Aircraft Engine, V001T01A002, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-100547
https://doi.org/10.1115/GT2023-100547
View Paper titled, Fluid Dynamic Loss Model With Wide Applicability for Aeroengine Transmission Gears
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Topics: Fluids, Gears, Design, Computer simulation, Flow (Dynamics), Fuel efficiency, Internal flow, Modeling, Numerical analysis, Vortices
Proceedings Papers

Effect of a Passive Flow Control Device on the Performance of an S-Duct Inlet in High Subsonic Flow

Courtney Rider, Asad Asghar, William D. E. Allan, Grant Ingram, Robert Stowe, Rogerio Pimentel
Proc. ASME. GT2023, Volume 1: Aircraft Engine, V001T01A038, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-104104
https://doi.org/10.1115/GT2023-104104
View Paper titled, Effect of a Passive Flow Control Device on the Performance of an S-Duct Inlet in High Subsonic Flow
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Topics: Ducts, Flow control, Subsonic flow, Separation (Technology), Computational fluid dynamics, Pressure, Diffusers, Simulation, Aerodynamics, Airfoils
Proceedings Papers

Impact of Installation on the Performance of an Aero-Engine Exhaust at Wind-Milling Flow Conditions

Ioannis Goulos, David MacManus, Josep Hueso Rebassa, Fernando Tejero, Andy Au, Christopher Sheaf
Proc. ASME. GT2023, Volume 1: Aircraft Engine, V001T01A007, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-100833
https://doi.org/10.1115/GT2023-100833
View Paper titled, Impact of Installation on the Performance of an Aero-Engine Exhaust at Wind-Milling Flow Conditions
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Topics: Aircraft engines, Exhaust systems, Flow (Dynamics), Milling, Wind, Nozzles, Pressure, Wings, Discharge coefficient, Tertiary petroleum recovery
Proceedings Papers

On the Flow Physics During the Transition of a Variable Pitch Fan From Nominal Operation to Reverse Thrust Mode

Dimitrios Vitlaris, David John Rajendran, Vassilios Pachidis, Richard Tunstall, John Whurr
Proc. ASME. GT2023, Volume 1: Aircraft Engine, V001T01A016, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101980
https://doi.org/10.1115/GT2023-101980
View Paper titled, On the Flow Physics During the Transition of a Variable Pitch Fan From Nominal Operation to Reverse Thrust Mode
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Topics: Flow (Dynamics), Physics, Thrust
Proceedings Papers

Applicability of Numerical Simulation to the Classification of Fluid Dynamic Loss in Aeroengine Transmission Gears

Hidenori Arisawa, Mitsuaki Tanaka, Hironori Hashimoto, Tatsuhiko Goi, Takahiko Banno, Hideyuki Imai
Proc. ASME. GT2023, Volume 1: Aircraft Engine, V001T01A001, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-100546
https://doi.org/10.1115/GT2023-100546
View Paper titled, Applicability of Numerical Simulation to the Classification of Fluid Dynamic Loss in Aeroengine Transmission Gears
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Topics: Computer simulation, Fluids, Gears, Flow (Dynamics), Computational fluid dynamics, Two-phase flow, Accuracy and precision, Air flow, Compression, Computational methods