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Proceedings Papers

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

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

Paper No: GT2022-82558

DOI: https://doi.org/10.1115/GT2022-82558

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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

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

Paper No: GT2022-81912

DOI: https://doi.org/10.1115/GT2022-81912

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Topics: Turbofans, Drag (Fluid dynamics), Engines, Flow (Dynamics), Pressure, Weight (Mass), Diffusion (Physics), Exhaust systems, Rotors, Separation (Technology)

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

Charles Wisniewski, Kenneth Van Treuren

Proc. ASME. GT2022, Volume 1: Aircraft Engine; Ceramics and Ceramic Composites, V001T01A012, June 13–17, 2022

Paper No: GT2022-81579

DOI: https://doi.org/10.1115/GT2022-81579

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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

Kenneth Van Treuren, Charles Wisniewski

Proc. ASME. GT2022, Volume 1: Aircraft Engine; Ceramics and Ceramic Composites, V001T01A022, June 13–17, 2022

Paper No: GT2022-82330

DOI: https://doi.org/10.1115/GT2022-82330

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Topics: Design, Drag (Fluid dynamics), Propellers

Proceedings Papers

Effect of a Reduced Oil Flow Rate on the Static and Dynamic Performance of a Tilting Pad Journal Bearing Running in Both the Flooded and Evacuated Conditions

Luis San Andrés, Andy Alcantar

Proc. ASME. GT2022, Volume 8A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Engineering Design, Analysis, and Additive Manufacturing; Fatigue, Fracture, and Life Prediction, V08AT22A006, June 13–17, 2022

Paper No: GT2022-81839

DOI: https://doi.org/10.1115/GT2022-81839

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Topics: Bearings, Flow (Dynamics), Journal bearings, Stress, Drag (Fluid dynamics), Temperature, Damping, Fluid films, Lubricants, Machinery

Proceedings Papers

Calculating Windage Losses: A Review

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

Paper No: GT2022-82570

DOI: https://doi.org/10.1115/GT2022-82570

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Topics: Compressors, Density, Drag (Fluid dynamics), Fluids, High pressure (Physics), Machinery, Modeling, Reynolds number, Rotation, Rotors

Proceedings Papers

Convection in Scaled Turbine Internal Cooling Passages With Additive Manufacturing Roughness

Gabriel J. Stafford, Stephen T. McClain, David R. Hanson, Robert F. Kunz, Karen A. Thole

Proc. ASME. GT2021, Volume 5B: Heat Transfer — General Interest; Internal Air Systems; Internal Cooling, V05BT15A018, June 7–11, 2021

Paper No: GT2021-59684

DOI: https://doi.org/10.1115/GT2021-59684

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Topics: Additive manufacturing, Convection, Cooling, Surface roughness, Turbines, Aluminum, Friction, Compressibility, Computer numerical control machine tools, Drag (Fluid dynamics)

Proceedings Papers

On the Shaft Speed Selection of Parallel Hybrid Aero Engines

Michael Sielemann, Jesse Gohl, Xin Zhao, Konstantinos Kyprianidis, Giorgio Valente, Sharmila Sumsurooah

Proc. ASME. GT2021, Volume 1: Aircraft Engine; Fans and Blowers; Marine; Wind Energy; Scholar Lecture, V001T01A014, June 7–11, 2021

Paper No: GT2021-59500

DOI: https://doi.org/10.1115/GT2021-59500

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Topics: Aircraft, Aircraft engines, Cooling, Design, Drag (Fluid dynamics), Electric propulsion, Electricity (Physics), Fuel consumption, Gas turbines, Mach number

Proceedings Papers

Fan-Intake Coupling With Conventional and Short Intakes

E. J. Gunn, T. Brandvik, M. J. Wilson

Proc. ASME. GT2021, Volume 1: Aircraft Engine; Fans and Blowers; Marine; Wind Energy; Scholar Lecture, V001T01A003, June 7–11, 2021

Paper No: GT2021-58829

DOI: https://doi.org/10.1115/GT2021-58829

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Topics: Annulus, Boundary layers, Computational fluid dynamics, Design, Diffusion (Physics), Drag (Fluid dynamics), Engineering simulation, Engines, Fans, Flow (Dynamics)

Proceedings Papers

A Key Flow Parameter to the Profile Loss of Low-Pressure Turbine Blades

Hidekazu Kodama, Ken-ichi Funazaki

Proc. ASME. GT2021, Volume 2B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing, V02BT32A003, June 7–11, 2021

Paper No: GT2021-58887

DOI: https://doi.org/10.1115/GT2021-58887

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Topics: Flow (Dynamics), Pressure, Turbine blades, Blades, Boundary layers, Form drag, Drag (Fluid dynamics), Design, Friction, Optimization

Proceedings Papers

CFD Analysis of the Influence of Gas Content on the Rotordynamic Force Coefficients for a Circumferentially Grooved Annular Seal for Multiple Phase Pumps

Tingcheng Wu, Luis San Andrés, Xueliang Lu

Proc. ASME. GT2021, Volume 9A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Design and Engineering, V09AT24A005, June 7–11, 2021

Paper No: GT2021-58631

DOI: https://doi.org/10.1115/GT2021-58631

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Topics: Computational fluid dynamics, Pumps, Damping, Pressure, Engineering simulation, Excitation, Flow (Dynamics), Rotors, Simulation, Stability

Proceedings Papers

Measurements to Quantify the Effect of a Reduced Flow Rate on the Performance of a Tilting Pad Journal Bearing (LBP) With Flooded Ends

Luis San Andrés, Jonathan Toner, Andy Alcantar

Proc. ASME. GT2021, Volume 9A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Design and Engineering, V09AT24A007, June 7–11, 2021

Paper No: GT2021-58771

DOI: https://doi.org/10.1115/GT2021-58771

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Topics: Bearings, Flow (Dynamics), Journal bearings, Stress, Temperature, Drag (Fluid dynamics), Babbitt metal, Damping, Energy efficiency, Floods

Proceedings Papers

Effect of Pad Material, Copper vs. Steel, on the Performance of a Tilting Pad Journal Bearing: Measurements and Predictions

Luis San Andrés, Hussain Kaizar, Hardik Jani, Manish Thorat

Proc. ASME. GT2021, Volume 9A: Structures and Dynamics — Aerodynamics Excitation and Damping; Bearing and Seal Dynamics; Emerging Methods in Design and Engineering, V09AT24A017, June 7–11, 2021

Paper No: GT2021-59401

DOI: https://doi.org/10.1115/GT2021-59401

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Topics: Copper, Journal bearings, Steel, Bearings, Stress, Temperature, Stiffness, Clearances (Engineering), Damping, Drag (Fluid dynamics)

Proceedings Papers

Turboelectric Distributed Propulsion Modelling Accounting for Fan Boundary Layer Ingestion and Inlet Distortion

Georgios Athanasakos, Nikolaos Aretakis, Alexios Alexiou, Konstantinos Mathioudakis

Proc. ASME. GT2020, Volume 5: Controls, Diagnostics, and Instrumentation; Cycle Innovations; Cycle Innovations: Energy Storage, V005T06A008, September 21–25, 2020

Paper No: GT2020-14621

DOI: https://doi.org/10.1115/GT2020-14621

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Topics: Accounting, Boundary layers, Modeling, Propulsion, Compressors, Design, Propulsion systems, Dimensions, Drag (Fluid dynamics), Electronic systems

Proceedings Papers

Numerical Investigation on the Static and Rotordynamic Characteristics for Two Types of Novel Mixed Helical Groove Seals

Zhi Fang, Zhigang Li, Jun Li, Zhenping Feng

Proc. ASME. GT2020, Volume 10A: Structures and Dynamics, V10AT25A036, September 21–25, 2020

Paper No: GT2020-16303

DOI: https://doi.org/10.1115/GT2020-16303

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Topics: Bearings, Cavities, Computational fluid dynamics, Dampers, Damping, Deformation, Drag (Fluid dynamics), Energy dissipation, Fluids, High pressure (Physics)

Proceedings Papers

Experimental Drag and Mixing From Lobed Nozzles Under High Swirl Conditions From a Ducted Fan

Maverick Zawislak, Michael Birk

Proc. ASME. GT2020, Volume 1: Aircraft Engine; Fans and Blowers, V001T01A026, September 21–25, 2020

Paper No: GT2020-15211

DOI: https://doi.org/10.1115/GT2020-15211

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Topics: Drag (Fluid dynamics), Nozzles, Vorticity, Thrust, Flow (Dynamics), Vortices, Computational fluid dynamics, Design methodology, Cooling, Design

Proceedings Papers

Robust Aerodynamic Design of Nacelles for Future Civil Aero-Engines

B. Deneys J. Schreiner, Fernando Tejero, David G. MacManus, Christopher Sheaf

Proc. ASME. GT2020, Volume 1: Aircraft Engine; Fans and Blowers, V001T01A015, September 21–25, 2020

Paper No: GT2020-14470

DOI: https://doi.org/10.1115/GT2020-14470

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Topics: Aircraft engines, Design, Engines, Flight, Pareto optimization, Aviation, Cycles, Design methodology, Drag (Fluid dynamics), Emissions

Proceedings Papers

Interpretation of Low-Pressure Turbine Profile Loss Generation Mechanisms From a Viewpoint of Blade Drag Forces

Hidekazu Kodama, Ken-ichi Funazaki

Proc. ASME. GT2020, Volume 2B: Turbomachinery, V02BT33A009, September 21–25, 2020

Paper No: GT2020-14519

DOI: https://doi.org/10.1115/GT2020-14519

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Topics: Blades, Drag (Fluid dynamics), Pressure, Turbines, Form drag, Friction, Reynolds number, Boundary layers, Bubbles, Cascades (Fluid dynamics)

Proceedings Papers

Crystal Visco-Plastic Model for Ni-Base Superalloys Under Thermomechanical Fatigue

Navindra Wijeyeratne, Firat Irmak, Ali P. Gordon, Jun-Young Jeon

Proc. ASME. GT2020, Volume 10B: Structures and Dynamics, V10BT27A003, September 21–25, 2020

Paper No: GT2020-14163

DOI: https://doi.org/10.1115/GT2020-14163

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Topics: Anisotropy, Crystals, Fatigue, Modeling, Superalloys, Thermomechanics, Temperature, Stress, Hardening, Simulation

Proceedings Papers

Numerical Modeling of the Effects of Leading-Edge Erosion and Trailing-Edge Damage on Wind Turbine Loads and Performance

Francesco Papi, Lorenzo Cappugi, Alessandro Bianchini, Sebastian Perez-Becker

Proc. ASME. GT2020, Volume 12: Wind Energy, V012T42A019, September 21–25, 2020

Paper No: GT2020-16310

DOI: https://doi.org/10.1115/GT2020-16310

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Topics: Computer simulation, Damage, Erosion, Stress, Wind turbines, Airfoils, Computational fluid dynamics, Engineering simulation, Fatigue, Simulation

NARROW

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

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

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

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

Effect of a Reduced Oil Flow Rate on the Static and Dynamic Performance of a Tilting Pad Journal Bearing Running in Both the Flooded and Evacuated Conditions

Calculating Windage Losses: A Review

Convection in Scaled Turbine Internal Cooling Passages With Additive Manufacturing Roughness

On the Shaft Speed Selection of Parallel Hybrid Aero Engines

Fan-Intake Coupling With Conventional and Short Intakes

A Key Flow Parameter to the Profile Loss of Low-Pressure Turbine Blades

CFD Analysis of the Influence of Gas Content on the Rotordynamic Force Coefficients for a Circumferentially Grooved Annular Seal for Multiple Phase Pumps

Measurements to Quantify the Effect of a Reduced Flow Rate on the Performance of a Tilting Pad Journal Bearing (LBP) With Flooded Ends

Effect of Pad Material, Copper vs. Steel, on the Performance of a Tilting Pad Journal Bearing: Measurements and Predictions

Turboelectric Distributed Propulsion Modelling Accounting for Fan Boundary Layer Ingestion and Inlet Distortion

Numerical Investigation on the Static and Rotordynamic Characteristics for Two Types of Novel Mixed Helical Groove Seals

Experimental Drag and Mixing From Lobed Nozzles Under High Swirl Conditions From a Ducted Fan

Robust Aerodynamic Design of Nacelles for Future Civil Aero-Engines

Interpretation of Low-Pressure Turbine Profile Loss Generation Mechanisms From a Viewpoint of Blade Drag Forces

Crystal Visco-Plastic Model for Ni-Base Superalloys Under Thermomechanical Fatigue

Numerical Modeling of the Effects of Leading-Edge Erosion and Trailing-Edge Damage on Wind Turbine Loads and Performance

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