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Proceedings Papers

Non-Synchronous Vibration and Related Tip Clearance Flow Characteristic in a Low-Speed Axial Fan

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He Zhang, Ming Zhang, Xu Dong, Dakun Sun, Xiaofeng Sun
Proc. ASME. GT2024, Volume 12D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V12DT36A024, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129094
https://doi.org/10.1115/GT2024-129094
View Paper titled, Non-Synchronous Vibration and Related Tip Clearance Flow Characteristic in a Low-Speed Axial Fan
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Topics: Clearances (Engineering), Flow (Dynamics), Vibration
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
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Topics: Clearances (Engineering), Geometry, NASA, Performance evaluation, Vaneless diffusers
Proceedings Papers

Efficient Quantification of Aerodynamic Performance Uncertainty due to Geometric Variability Using an Adjoint Method

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Qian Zhang, Shenren Xu, Dejun Meng, Dingxi Wang, Xiuquan Huang
Proc. ASME. GT2024, Volume 12D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V12DT34A022, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-127703
https://doi.org/10.1115/GT2024-127703
View Paper titled, Efficient Quantification of Aerodynamic Performance Uncertainty due to Geometric Variability Using an Adjoint Method
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Topics: Uncertainty, Uncertainty quantification, Computational fluid dynamics, Blades, Dimensions, Vortices, Clearances (Engineering), Compressors, Corners (Structural elements), Design
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

Effect of Geometry and Heat Flux on Turbine Over-Tip Flow Power Extraction

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Lukas Benjamin Inhestern, Dieter Peitsch, Guillermo Paniagua
Proc. ASME. GT2024, Volume 13: Heat Transfer: General Interest / Additive Manufacturing Impacts on Heat Transfer; Wind Energy, V013T13A024, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-126598
https://doi.org/10.1115/GT2024-126598
View Paper titled, Effect of Geometry and Heat Flux on Turbine Over-Tip Flow Power Extraction
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Topics: Flow (Dynamics), Geometry, Heat flux, Heat transfer, Leakage flows, Turbines, Design, Leakage, Turbulence, Vortices
Proceedings Papers

Comprehensive Experimental Assessment of Unsteady Pressure and Heat Flux in a Small-Core Turbine Over-Tip Shroud

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Antonio Castillo Sauca, Lakshya Bhatnagar, Lukas Benjamin Inhestern, Guillermo Paniagua
Proc. ASME. GT2024, Volume 4: Controls, Diagnostics, and Instrumentation, V004T05A016, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-124106
https://doi.org/10.1115/GT2024-124106
View Paper titled, Comprehensive Experimental Assessment of Unsteady Pressure and Heat Flux in a Small-Core Turbine Over-Tip Shroud
Open the PDF for Comprehensive Experimental Assessment of Unsteady Pressure and Heat Flux in a Small-Core Turbine Over-Tip Shroud in another window
Topics: Clearances (Engineering), Heat flux, Pressure, Turbines
Proceedings Papers

Tracking of Bristle Tip Deflections to Demonstrate Blow-Down in Brush Seals

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Joshua P. Bowen, Aaron A. Bowsher, Peter F. Crudgington, Sam Bull, Carl M. Sangan, James A. Scobie
Proc. ASME. GT2024, Volume 8: Heat Transfer: Internal Air Systems; Heat Transfer: Internal Cooling; Industrial and Cogeneration, V008T14A020, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-128820
https://doi.org/10.1115/GT2024-128820
View Paper titled, Tracking of Bristle Tip Deflections to Demonstrate Blow-Down in Brush Seals
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Topics: Deflection, Pressure, Sealing (Process), Clearances (Engineering), Flow (Dynamics), Design, Gas turbines, Mechanical behavior, Rotors, Stress
Proceedings Papers

Numerical Investigation on the Robustness Assessment and Enhancement of Labyrinth Seal With Axial Displacement and Clearance Deviation

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Xin Jin, Chuankai Liu, Peng Liu, Zijun Li, Shuiting Ding
Proc. ASME. GT2024, Volume 8: Heat Transfer: Internal Air Systems; Heat Transfer: Internal Cooling; Industrial and Cogeneration, V008T14A001, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-122314
https://doi.org/10.1115/GT2024-122314
View Paper titled, Numerical Investigation on the Robustness Assessment and Enhancement of Labyrinth Seal With Axial Displacement and Clearance Deviation
Open the PDF for Numerical Investigation on the Robustness Assessment and Enhancement of Labyrinth Seal With Axial Displacement and Clearance Deviation in another window
Topics: Clearances (Engineering), Displacement, Robustness
Proceedings Papers

On the Relationship Between Swirl and Unsteadiness Within Turbine Rim Seals

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Simon Vella, Hui Tang, Mauro Carnevale, James A. Scobie, Gary D. Lock, Francesco Salvatori, Carl M. Sangan
Proc. ASME. GT2024, Volume 8: Heat Transfer: Internal Air Systems; Heat Transfer: Internal Cooling; Industrial and Cogeneration, V008T14A023, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129016
https://doi.org/10.1115/GT2024-129016
View Paper titled, On the Relationship Between Swirl and Unsteadiness Within Turbine Rim Seals
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Topics: Clearances (Engineering), Emission spectroscopy, Spectroscopy, Turbines
Proceedings Papers

The Axial-Throughflow Influence on the Taylor Vortices In Taylor-Couette-Poiseuille System

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Siyi Li, Qiang Du, Yaguang Xie, Guang Liu, Zengyan Lian, Yifu Luo, Lei Xie
Proc. ASME. GT2024, Volume 8: Heat Transfer: Internal Air Systems; Heat Transfer: Internal Cooling; Industrial and Cogeneration, V008T14A013, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-126931
https://doi.org/10.1115/GT2024-126931
View Paper titled, The Axial-Throughflow Influence on the Taylor Vortices In Taylor-Couette-Poiseuille System
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Topics: Flow (Dynamics), Vortices, Heat transfer, Aircraft engines, Clearances (Engineering), Computer simulation, Cooling, Cylinders, Flow control, High pressure (Physics)
Proceedings Papers

Effects of Mainstream Incidence Angle on the Cooling Performance of the Rotational Turbine Blade Tip

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Xilai Wang, Zhi Tao, Haiwang Li, Zhiyu Zhou, Gang Xie, Long Meng
Proc. ASME. GT2024, Volume 7: Heat Transfer: Combustors; Heat Transfer: Film Cooling, V007T12A030, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-126197
https://doi.org/10.1115/GT2024-126197
View Paper titled, Effects of Mainstream Incidence Angle on the Cooling Performance of the Rotational Turbine Blade Tip
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Topics: Clearances (Engineering), Cooling, Turbine blades
Proceedings Papers

Investigation of Grooved Front Plate for Inlet Swirl Reduction in Brush Seals

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Abdullah M. Abbas, Michael J. Pekris, John W. Chew
Proc. ASME. GT2024, Volume 8: Heat Transfer: Internal Air Systems; Heat Transfer: Internal Cooling; Industrial and Cogeneration, V008T14A015, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-127753
https://doi.org/10.1115/GT2024-127753
View Paper titled, Investigation of Grooved Front Plate for Inlet Swirl Reduction in Brush Seals
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Topics: Aerodynamics, Clearances (Engineering), Computational fluid dynamics, Design, Drag (Fluid dynamics), Engines, Experimental design, Flow (Dynamics), Fluid-dynamic forces, Fuel efficiency
Proceedings Papers

Modeling of Frictional Inter-Bristle Contact in Brush Seals With Shaft Radial Movements

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Harry M. Phan, Michael J. Pekris, John W. Chew, Thomas J. Greenslade
Proc. ASME. GT2024, Volume 8: Heat Transfer: Internal Air Systems; Heat Transfer: Internal Cooling; Industrial and Cogeneration, V008T14A016, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-127824
https://doi.org/10.1115/GT2024-127824
View Paper titled, Modeling of Frictional Inter-Bristle Contact in Brush Seals With Shaft Radial Movements
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Topics: Friction, Modeling, Clearances (Engineering), Leakage flows, Pressure, Wear, Compression, Computer simulation, Heat, Thermal efficiency
Proceedings Papers

Development of Large-Diameter Hybrid Film-Riding Seals for sCO 2 Turbines

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Rahul A. Bidkar, Uttara Kumar, Deepak Trivedi, Xiaohua Zhang, Collin Rambacher, Aaron Rimpel, Thomas Kerr, Jeremy Johnson
Proc. ASME. GT2024, Volume 8: Heat Transfer: Internal Air Systems; Heat Transfer: Internal Cooling; Industrial and Cogeneration, V008T14A004, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-123289
https://doi.org/10.1115/GT2024-123289
View Paper titled, Development of Large-Diameter Hybrid Film-Riding Seals for sCO 2 Turbines
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Topics: Turbines, Temperature, Clearances (Engineering), Film thickness, Fluids, Carbon dioxide, Design, Rotors, Computational fluid dynamics, Deformation
Proceedings Papers

Experimental Characterization of a Bladeless Air Compressor

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Ravi Nath Tiwari, Federico Reggio, Mario Luigi Ferrari, Ward De Paepe, Alberto Traverso
Proc. ASME. GT2024, Volume 9: Manufacturing Materials and Metallurgy; Microturbines, Turbochargers, and Small Turbomachines; Oil & Gas Applications; Steam Turbine, V009T18A009, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-123669
https://doi.org/10.1115/GT2024-123669
View Paper titled, Experimental Characterization of a Bladeless Air Compressor
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Topics: Air compressors, Compressors, Computational fluid dynamics, Experimental characterization, Leakage, Flow (Dynamics), Design, Engineering prototypes, Pressure, Clearances (Engineering)
Proceedings Papers

Leakage Loss Reduction by Shroud Cavity Shape Improvement in Reaction Turbine

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Masahiro Sato, Kazunobu Ndong, Hiroaki Taniguchi
Proc. ASME. GT2024, Volume 9: Manufacturing Materials and Metallurgy; Microturbines, Turbochargers, and Small Turbomachines; Oil & Gas Applications; Steam Turbine, V009T20A007, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-124167
https://doi.org/10.1115/GT2024-124167
View Paper titled, Leakage Loss Reduction by Shroud Cavity Shape Improvement in Reaction Turbine
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Topics: Cavities, Leakage, Shapes, Turbines, Blades, Leakage flows, Clearances (Engineering), Flow (Dynamics), Design, Fins
Proceedings Papers

Combined Effects of Fluid Inertia and Gas Rarefaction on The Performance of Textured Gas Bearings

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Kefan Xu, Guanghui Zhang, Yiken Lu, Jiazhen Han, Zhongwen Huang, Wenjie Gong
Proc. ASME. GT2024, Volume 10A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing, V10AT22A008, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-124993
https://doi.org/10.1115/GT2024-124993
View Paper titled, Combined Effects of Fluid Inertia and Gas Rarefaction on The Performance of Textured Gas Bearings
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Topics: Fluids, Gas bearings, Inertia (Mechanics), Journal bearings, Texture (Materials), Clearances (Engineering), Slip flow, Algorithms, Design, Finite difference methods
Proceedings Papers

Large Axial Vibrations in Turbomachines: Non-Linear Behaviour of Double Sided Lubricated Thrust Bearing

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Ludovico Dassi, Steven Chatterton, Edoardo Gheller, Paolo Pennacchi
Proc. ASME. GT2024, Volume 10A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing, V10AT22A007, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-124990
https://doi.org/10.1115/GT2024-124990
View Paper titled, Large Axial Vibrations in Turbomachines: Non-Linear Behaviour of Double Sided Lubricated Thrust Bearing
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Topics: Nonlinear dynamics, Thrust bearings, Turbomachinery, Vibration, Machinery, Bearings, Clearances (Engineering), Bifurcation, Compressors, Flow (Dynamics)
Proceedings Papers

A New Experimental Facility for the Study of Blade Tip Rubs at Engine Relevant Temperatures

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Noah Broski, Christopher Keener, Theodore Loizos, Randall Mathison, Kiran D’Souza, Thomas Kasprow, Agnieszka M. Wusatowska-Sarnek
Proc. ASME. GT2024, Volume 10A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing, V10AT23A011, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129413
https://doi.org/10.1115/GT2024-129413
View Paper titled, A New Experimental Facility for the Study of Blade Tip Rubs at Engine Relevant Temperatures
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Topics: Blades, Engines, Gas turbines, Temperature, Turbomachinery, Linings (Textiles), Temperature control, Design, Aircraft engines, Clearances (Engineering)