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Proceedings Papers

Investigating the Performance of Multi Element Wind Lens

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Kareem Elsafty, Ahmed Elbaz
Proc. ASME. GT2024, Volume 13: Heat Transfer: General Interest / Additive Manufacturing Impacts on Heat Transfer; Wind Energy, V013T37A016, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-128215
https://doi.org/10.1115/GT2024-128215
View Paper titled, Investigating the Performance of Multi Element Wind Lens
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Topics: Computational fluid dynamics, Diffusers, Lenses (Optics), Wind, Wind turbines, Flow (Dynamics), Design, Wind velocity, Drag (Fluid dynamics), Rotors
Proceedings Papers

Optimization of a Battery Electric Hybrid Propulsion System for a Short Range Aircraft

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Jonas Schroeter, Fabian Armbrüster, Reinhold Schaber, Volker Gümmer
Proc. ASME. GT2024, Volume 1: Aircraft Engine, V001T01A037, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-125840
https://doi.org/10.1115/GT2024-125840
View Paper titled, Optimization of a Battery Electric Hybrid Propulsion System for a Short Range Aircraft
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Topics: Aircraft, Batteries, Design, Gas turbines, Optimization, Propulsion systems, Boundary-value problems, Drag (Fluid dynamics), Modeling, Thermal management
Proceedings Papers

Hybrid Electric Aircraft With Unlike Engine Degradation

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Halle E. Buescher, Joseph W. Connolly
Proc. ASME. GT2024, Volume 4: Controls, Diagnostics, and Instrumentation, V004T05A003, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-121184
https://doi.org/10.1115/GT2024-121184
View Paper titled, Hybrid Electric Aircraft With Unlike Engine Degradation
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Topics: Aircraft, Engines, Thrust, Fuels, Aircraft propulsion, Drag (Fluid dynamics), Electromechanical actuators, Fuel consumption, Machinery, Propulsion systems
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

Dynamic Characterization of a Low Drag Power Loss Tilting Pad Journal Bearing

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Roarke Bradley, Adolfo Delgado, Luis San Andrés
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, V10AT22A025, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129170
https://doi.org/10.1115/GT2024-129170
View Paper titled, Dynamic Characterization of a Low Drag Power Loss Tilting Pad Journal Bearing
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Topics: Drag (Fluid dynamics), Journal bearings, Turbomachinery
Proceedings Papers

Design and Analysis of High-Temperature, High-Pressure Seal Test Rig

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Thomas Kerr, Jason Bensmiller
Proc. ASME. GT2024, Volume 10B: Structures and Dynamics — Fatigue, Fracture, and Life Prediction; Probabilistic Methods; Rotordynamics; Structural Mechanics and Vibration, V10BT26A021, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129353
https://doi.org/10.1115/GT2024-129353
View Paper titled, Design and Analysis of High-Temperature, High-Pressure Seal Test Rig
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Topics: Design, High pressure (Physics), High temperature, Fluids, Cooling, Manufacturing, Pressure, Temperature, Thermal expansion, Alloys
Proceedings Papers

Effect of Blade Damage on Low Pressure Ratio Fan Windmill Aerodynamics

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Sofía I. Medina Cassillas, Alejandro Castillo Pardo, Cesare A. Hall, Benjamin Mohankumar
Proc. ASME. GT2024, Volume 12A: Turbomachinery — Axial Flow Fan and Compressor Aerodynamics, V12AT29A005, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-122107
https://doi.org/10.1115/GT2024-122107
View Paper titled, Effect of Blade Damage on Low Pressure Ratio Fan Windmill Aerodynamics
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Topics: Aerodynamics, Blades, Damage, Pressure, Flow (Dynamics), Computational fluid dynamics, Air flow, Chords (Trusses), Design, Drag (Fluid dynamics)
Proceedings Papers

Performance of Rough-Ribbed Low-Pressure Turbine Blades Under Varying Loading and Operating Conditions

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Ananth S. M., Massimiliano Nardini, Melissa Kozul, Nagabhushana Rao Vadlamani, Richard D. Sandberg
Proc. ASME. GT2024, Volume 12B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing, V12BT30A039, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-127998
https://doi.org/10.1115/GT2024-127998
View Paper titled, Performance of Rough-Ribbed Low-Pressure Turbine Blades Under Varying Loading and Operating Conditions
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Topics: Pressure, Surface roughness, Turbine blades, Design, Skin friction (Fluid dynamics), Blades, Boundary layers, Flow (Dynamics), Turbulence, Bubbles
Proceedings Papers

Probabilistic Analysis of Leading Edge Erosion Behavior of a High-Pressure Compressor in a Turbofan Engine

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Andreas Türke, Lukas Schlüter, Matthias Voigt, Robin Schmidt, Andreas Vogel, Ronald Mailach
Proc. ASME. GT2024, Volume 12D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V12DT34A007, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-122239
https://doi.org/10.1115/GT2024-122239
View Paper titled, Probabilistic Analysis of Leading Edge Erosion Behavior of a High-Pressure Compressor in a Turbofan Engine
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Topics: Compressors, Engines, Erosion, High pressure (Physics), Turbofans, Blades, Geometry, Particulate matter, Dust, Wear
Proceedings Papers

Evaluation of Empirical Loss Models for Base Drag Prediction of sCO2 Axial Turbine Aerofoils

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R. Senthil Kumaran, Sharath P. P., Dilipkumar B. Alone, Pramod Kumar
Proc. ASME. GT2023, Volume 12: Supercritical CO2, V012T28A024, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103587
https://doi.org/10.1115/GT2023-103587
View Paper titled, Evaluation of Empirical Loss Models for Base Drag Prediction of sCO2 Axial Turbine Aerofoils
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Topics: Airfoils, Cascades (Fluid dynamics), Drag (Fluid dynamics), Turbines
Proceedings Papers

Propulsion Aerodynamics for a Novel High-Speed Exhaust System

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Spyros Tsentis, Ioannis Goulos, Simon Prince, Vassilios Pachidis, Vladeta Zmijanovic
Proc. ASME. GT2023, Volume 1: Aircraft Engine, V001T01A010, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101005
https://doi.org/10.1115/GT2023-101005
View Paper titled, Propulsion Aerodynamics for a Novel High-Speed Exhaust System
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Topics: Aerodynamics, Cavities, Drag (Fluid dynamics), Exhaust systems, Nozzles, Propulsion
Proceedings Papers

Development of a 250,000 Lb Thrust Bearing Test Rig With Experimental Results

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Jason Wilkes, Farhan Ahmed Omer, Thomas Kerr
Proc. ASME. GT2023, Volume 11A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics, V11AT22A035, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103960
https://doi.org/10.1115/GT2023-103960
View Paper titled, Development of a 250,000 Lb Thrust Bearing Test Rig With Experimental Results
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Topics: Thrust bearings, Bearings, Stress, Rollers, Cooling, Design, Displacement, Drag (Fluid dynamics), Engines, Failure
Proceedings Papers

High-Fidelity Computational Assessment of Aero-Thermal Performance and the Reynolds’ Analogy for Additively Manufactured Anisotropic Surface Roughness

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Thomas O. Jelly, Wagih Abu Rowin, Nicholas Hutchins, Daniel Chung, Koichi Tanimoto, Takuo Oda, Richard D. Sandberg
Proc. ASME. GT2023, Volume 7B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V07BT13A005, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102138
https://doi.org/10.1115/GT2023-102138
View Paper titled, High-Fidelity Computational Assessment of Aero-Thermal Performance and the Reynolds’ Analogy for Additively Manufactured Anisotropic Surface Roughness
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Topics: Additive manufacturing, Anisotropy, Heat transfer, Surface roughness, Turbulence, Flow (Dynamics), Pressure, Channel flow, Computational fluid dynamics, Computer simulation
Proceedings Papers

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

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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

Effects of Riblet Dimensions on the Transitional Boundary Layers Over High-Lift Turbine Blades

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S. M. Ananth, Massimiliano Nardini, Aditya Vaid, Melissa Kozul, Nagabhushana Rao Vadlamani, Richard D. Sandberg
Proc. ASME. GT2023, Volume 13B: Turbomachinery — Axial Flow Turbine Aerodynamics, V13BT30A036, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103536
https://doi.org/10.1115/GT2023-103536
View Paper titled, Effects of Riblet Dimensions on the Transitional Boundary Layers Over High-Lift Turbine Blades
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Topics: Boundary layers, Dimensions, Turbine blades, Surface roughness, Blades, Skin friction (Fluid dynamics), Bubbles, Drag (Fluid dynamics), Flow (Dynamics), Separation (Technology)
Proceedings Papers

Profile Loss Reduction of High Lift Turbine Blades With Rough and Ribbed Surfaces

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S. M. Ananth, Massimiliano Nardini, Aditya Vaid, Richard D. Sandberg, Nagabhushana Rao Vadlamani
Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT30A026, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82558
https://doi.org/10.1115/GT2022-82558
View Paper titled, Profile Loss Reduction of High Lift Turbine Blades With Rough and Ribbed Surfaces
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Topics: Surface roughness, Turbine blades, Blades, Turbulence, Boundary layers, Pressure gradient, Separation (Technology), Suction, Boundary layer turbulence, Bubbles
Proceedings Papers

Analysis of Ultra-High Bypass Ratio Turbofan Nacelle Geometries With Conventional and Short Intakes at Take-Off and Cruise

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Andrea Magrini, Denis Bousi, Ernesto Benini
Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT33A005, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-81912
https://doi.org/10.1115/GT2022-81912
View Paper titled, Analysis of Ultra-High Bypass Ratio Turbofan Nacelle Geometries With Conventional and Short Intakes at Take-Off and Cruise
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Topics: Turbofans, Drag (Fluid dynamics), Engines, Flow (Dynamics), Pressure, Weight (Mass), Diffusion (Physics), Exhaust systems, Rotors, Separation (Technology)
Proceedings Papers

Calculating Windage Losses: A Review

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Fernando Karg Bulnes, Thomas Kerr, Aaron Rimpel
Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT33A016, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82570
https://doi.org/10.1115/GT2022-82570
View Paper titled, Calculating Windage Losses: A Review
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Topics: Compressors, Density, Drag (Fluid dynamics), Fluids, High pressure (Physics), Machinery, Modeling, Reynolds number, Rotation, Rotors
Proceedings Papers

Novel UAS Propeller Design Part 1: Using an Unloaded Tip to Reduce Power Requirements and Lower Generated Sound Levels for Propellers Designed for Minimum Induced Drag

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Charles Wisniewski, Kenneth Van Treuren
Proc. ASME. GT2022, Volume 1: Aircraft Engine; Ceramics and Ceramic Composites, V001T01A012, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-81579
https://doi.org/10.1115/GT2022-81579
View Paper titled, Novel UAS Propeller Design Part 1: Using an Unloaded Tip to Reduce Power Requirements and Lower Generated Sound Levels for Propellers Designed for Minimum Induced Drag
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Topics: Design, Drag (Fluid dynamics), Propellers
Proceedings Papers

Novel UAS Propeller Design Part 2: Design Hub and Tip Angle of Attack Sensitivity of UAS Propellers Designed for Minimum Induced Drag

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Kenneth Van Treuren, Charles Wisniewski
Proc. ASME. GT2022, Volume 1: Aircraft Engine; Ceramics and Ceramic Composites, V001T01A022, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82330
https://doi.org/10.1115/GT2022-82330
View Paper titled, Novel UAS Propeller Design Part 2: Design Hub and Tip Angle of Attack Sensitivity of UAS Propellers Designed for Minimum Induced Drag
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Topics: Design, Drag (Fluid dynamics), Propellers