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Proceedings Papers

Numerical and Experimental Investigations on the Leakage Flow Characteristics and Temperature Distributions of Brush Seals

Pengfei Song, Dengqian Ma, Zhigang Li, Jun Li
Proc. ASME. GT2023, Volume 7B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V07BT14A010, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102763
https://doi.org/10.1115/GT2023-102763
View Paper titled, Numerical and Experimental Investigations on the Leakage Flow Characteristics and Temperature Distributions of Brush Seals
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Topics: Heat transfer, Leakage flows, Temperature distribution
Proceedings Papers

Computational Assessment of Labyrinth Seal Parametric Variation on Leakage Prediction Using Modified Direct Analytical Model in Transient and Steady Operation

Gürkan Ertuğral, Dündar Uçar
Proc. ASME. GT2023, Volume 7B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V07BT14A021, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103791
https://doi.org/10.1115/GT2023-103791
View Paper titled, Computational Assessment of Labyrinth Seal Parametric Variation on Leakage Prediction Using Modified Direct Analytical Model in Transient and Steady Operation
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Topics: Leakage, Leakage flows, Transients (Dynamics), Flow (Dynamics), Clearances (Engineering), Compressible flow, Computational fluid dynamics, Experimental design, Gas turbines, Kinetic energy
Proceedings Papers

Dynamic Characterization of an Adaptive Film-Riding Seal

Joshua Bird, Patrick Keogh, Carl Sangan, Aaron Bowsher, Peter Crudgington, James Scobie
Proc. ASME. GT2023, Volume 11A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics, V11AT22A022, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103118
https://doi.org/10.1115/GT2023-103118
View Paper titled, Dynamic Characterization of an Adaptive Film-Riding Seal
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Topics: Clearances (Engineering), Computer simulation, Damping, Design, Displacement, Eddies (Fluid dynamics), Eddy currents (Electricity), Fluid films, Fluids, High pressure (Physics)
Proceedings Papers

Pressure Actuated Leaf Seal Design and Test for sCO2 Applications

Clayton Grondahl, Rich Armstrong
Proc. ASME. GT2023, Volume 11A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics, V11AT22A012, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102258
https://doi.org/10.1115/GT2023-102258
View Paper titled, Pressure Actuated Leaf Seal Design and Test for sCO2 Applications
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Topics: Design, Pressure, Leakage, Sealing (Process), Cycles, Dynamic testing (Engineering), Dynamic testing (Materials), Energy conversion, Leakage flows, Turbomachinery
Proceedings Papers

On the Effect of Purge Air on the Aerodynamic Performance of a State-of-the-Art Turbine-Rear-Frame Guide Vane

Malte Schien, Christian Wakelam, Mattia Graiff, Emil Göttlich, Andreas Marn
Proc. ASME. GT2023, Volume 13C: Turbomachinery — Deposition, Erosion, Fouling, and Icing; Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V13CT33A003, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101915
https://doi.org/10.1115/GT2023-101915
View Paper titled, On the Effect of Purge Air on the Aerodynamic Performance of a State-of-the-Art Turbine-Rear-Frame Guide Vane
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Topics: Cavities, Guide vanes, Turbines, Turbomachinery, Fluids, Temperature, Flow (Dynamics), Pressure, Thermal efficiency, Aerodynamics
Proceedings Papers

Analytical Prediction of Acoustic Resonance in Labyrinth Seals

Janek Mahlstedt, Felix Fischer, Lars Wein, Joerg R. Seume
Proc. ASME. GT2023, Volume 13C: Turbomachinery — Deposition, Erosion, Fouling, and Icing; Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V13CT33A013, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103709
https://doi.org/10.1115/GT2023-103709
View Paper titled, Analytical Prediction of Acoustic Resonance in Labyrinth Seals
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Topics: Acoustics, Cavities, Resonance, Turbomachinery, Turbulence, Excitation, Modeling, Reynolds-averaged Navier–Stokes equations, Simulation, Standing waves
Proceedings Papers

A Critical Analysis on the Impact of External Losses on the Performance of a Centrifugal Compressor Stage – Experimental and Multi-Fidelity Numerical Assessment

Alberto Baroni, Iacopo Catalani, Luca Romani, Marco Bicchi, Francesco Balduzzi, Michele Marconcini, Alessandro Bianchini, Andrea Arnone, Giovanni Ferrara, Lorenzo Toni, Davide Biliotti
Proc. ASME. GT2023, Volume 13D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V13DT35A012, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102488
https://doi.org/10.1115/GT2023-102488
View Paper titled, A Critical Analysis on the Impact of External Losses on the Performance of a Centrifugal Compressor Stage – Experimental and Multi-Fidelity Numerical Assessment
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Topics: Compressors, Computational fluid dynamics, Design, Flow (Dynamics), Cavities, Engineering simulation, Simulation, Computer simulation, Leakage, Leakage flows
Proceedings Papers

Characterizing Shrouded Stator Cavity Flow on the Performance of a Single-Stage Axial Transonic Compressor

Runzhu Shao, Xiao He, Mingmin Zhu, Fabian Klausmann, Jinfang Teng
Proc. ASME. GT2023, Volume 13A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V13AT29A008, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101131
https://doi.org/10.1115/GT2023-101131
View Paper titled, Characterizing Shrouded Stator Cavity Flow on the Performance of a Single-Stage Axial Transonic Compressor
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Topics: Cavity flows, Compressors, Stators, Leakage flows, Cavities, Flow (Dynamics), Geometry, Leakage, Pressure, Computer simulation
Proceedings Papers

Modeling Tip Flow Structures and Heat Transfer in Contemporary Cooled and Uncooled High-Pressure Turbine Blades

Louis Christensen, Richard Celestina, Spencer Sperling, Randall Mathison, Hakan Aksoy, Jong Liu, Jeremy Nickol
Proc. ASME. GT2023, Volume 7A: Heat Transfer — Combustors; Film Cooling, V07AT12A019, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-104002
https://doi.org/10.1115/GT2023-104002
View Paper titled, Modeling Tip Flow Structures and Heat Transfer in Contemporary Cooled and Uncooled High-Pressure Turbine Blades
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Topics: Flow (Dynamics), Heat transfer, High pressure (Physics), Modeling, Turbine blades, Cooling, Blades, Cavities, Vortices, Pressure
Proceedings Papers

Effect of Coolant Flowrate on High-Pressure Turbine Tip Flow Structures and Thermal Loading

Louis Christensen, Richard Celestina, Spencer Sperling, Randall Mathison, Hakan Aksoy, Jong Liu, Jeremy Nickol
Proc. ASME. GT2023, Volume 7A: Heat Transfer — Combustors; Film Cooling, V07AT12A020, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-104008
https://doi.org/10.1115/GT2023-104008
View Paper titled, Effect of Coolant Flowrate on High-Pressure Turbine Tip Flow Structures and Thermal Loading
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Topics: Coolants, Flow (Dynamics), High pressure (Physics), Turbines, Blades, Film cooling, Turbine blades, Gas turbines, Heat transfer, Cooling
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

Optimized Casing Treatment to Improve Stall Margin Under Circumferential Pressure Distortion in a High-Speed Axial Flow Fan

Yihan Li, Jichao Li, Juan Du, Yang Liu, Min Zhang, Hongwu Zhang
Proc. ASME. GT2023, Volume 13A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V13AT29A011, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101620
https://doi.org/10.1115/GT2023-101620
View Paper titled, Optimized Casing Treatment to Improve Stall Margin Under Circumferential Pressure Distortion in a High-Speed Axial Flow Fan
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Topics: Axial flow, Pressure, Inflow, Blades, Design, Shock waves, Stability, Surges, Aviation, Composite materials
Proceedings Papers

Compressor Tip Leakage Mechanisms

James V. Taylor, Anthony M. J. Dickens, Harry Simpson
Proc. ASME. GT2023, Volume 13A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V13AT29A033, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103005
https://doi.org/10.1115/GT2023-103005
View Paper titled, Compressor Tip Leakage Mechanisms
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Topics: Compressors, Leakage, Simulation, Blades, Engineering standards, Flow (Dynamics), Geometry, Leakage flows, Modeling, Reynolds-averaged Navier–Stokes equations
Proceedings Papers

Effects of Turbine Blade Tip Pressure Side Winglet and Cavity Rim on Aerodynamic Performance

SooHyun Jo, Youngmin Jeon, Seungchan Baek, Jeonghwan Song, Donghyun You, Wontae Hwang
Proc. ASME. GT2023, Volume 13B: Turbomachinery — Axial Flow Turbine Aerodynamics, V13BT30A001, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-100621
https://doi.org/10.1115/GT2023-100621
View Paper titled, Effects of Turbine Blade Tip Pressure Side Winglet and Cavity Rim on Aerodynamic Performance
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Topics: Blades, Cascades (Fluid dynamics), Cavities, Flow (Dynamics), Leakage flows, Pressure, Turbine blades, Turbines, Design, Leakage
Proceedings Papers

Passive Controls of Tip Clearance Flow in a Transonic Compressor for Stall Margin Improvement: Common Flow Physics

Chunill Hah
Proc. ASME. GT2023, Volume 13A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V13AT29A007, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101077
https://doi.org/10.1115/GT2023-101077
View Paper titled, Passive Controls of Tip Clearance Flow in a Transonic Compressor for Stall Margin Improvement: Common Flow Physics
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Topics: Clearances (Engineering), Compressors, Flow (Dynamics), Passive control, Physics, Leakage flows, Design, Blades, Pressure, Suction
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
Publisher: American Society of Mechanical Engineers
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

Stall Margin Improvement in a Transonic Compressor With a Casing Treatment: Flow Mechanism

Chunill Hah
Proc. ASME. GT2022, Volume 10A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V10AT29A039, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-83363
https://doi.org/10.1115/GT2022-83363
View Paper titled, Stall Margin Improvement in a Transonic Compressor With a Casing Treatment: Flow Mechanism
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Topics: Compressors, Flow (Dynamics), Leakage flows, Collisions (Physics), Design, Blades, Delays, Fluids, Large eddy simulation, Leakage
Proceedings Papers

Casing Treatment: Its Potential and Limitations

Sungho Yoon, Patricia Cargill
Proc. ASME. GT2022, Volume 10A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V10AT29A008, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-80461
https://doi.org/10.1115/GT2022-80461
View Paper titled, Casing Treatment: Its Potential and Limitations
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Topics: Blades, Boundary layers, Compressors, Design, Durability, Dust, Flow (Dynamics), Ice, Industrial research, Leakage flows
Proceedings Papers

Extending Highly Loaded Axial Fan Operability Range Through Novel Blade Design

Diego I. Lopez, Tiziano Ghisu, Timoleon Kipouros, Shahrokh Shahpar, Mark Wilson
Proc. ASME. GT2022, Volume 10A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V10AT29A016, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-81748
https://doi.org/10.1115/GT2022-81748
View Paper titled, Extending Highly Loaded Axial Fan Operability Range Through Novel Blade Design
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Topics: Blades, Design, Momentum, Clearances (Engineering), Stability, Computer simulation, Compressors, Computation, Engineering simulation, Leakage flows
Proceedings Papers

Unsteady Structure of Compressor Tip Leakage Flows

Joshua M. Maynard, Andrew P. S. Wheeler, James V. Taylor, Roger Wells
Proc. ASME. GT2022, Volume 10A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V10AT29A003, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-78371
https://doi.org/10.1115/GT2022-78371
View Paper titled, Unsteady Structure of Compressor Tip Leakage Flows
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Topics: Compressors, Leakage flows, Flow (Dynamics), Blades, Corners (Structural elements), Engineering simulation, Simulation, Turbulence, Unsteady flow, Bubbles