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Journal Articles

Aerothermal Performance of Axially Varying Winglet-Squealer Blade Tips

Anmol Garg, Nagabhushana Rao Vadlamani, Balaji Srinivasan

J. Turbomach. July 2023, 145(7): 071009.

Paper No: TURBO-22-1134

DOI: https://doi.org/10.1115/1.4056712

Published Online: February 10, 2023

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Topics: Blades, Cavities, Flow (Dynamics), Pressure, Design, Leakage, Vortices, Leakage flows, High pressure (Physics)

Proceedings Papers

Crosswind Aerodynamic Analysis Using Quasi 3D Ducts

Sumit Shankar Sarvankar, Adrin Issai Arasu, Nagabhushana Rao Vadlamani

Proc. ASME. GT2022, Volume 10C: Turbomachinery — Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions, V10CT33A018, June 13–17, 2022

Paper No: GT2022-82964

DOI: https://doi.org/10.1115/GT2022-82964

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Topics: Ducts, Plasmas (Ionized gases), Separation (Technology), Actuators, Aerodynamics, Boundary layers, Computer simulation, Design, Flow (Dynamics), Flow control

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

Aerothermal Performance of Axially Varying Winglet-Squealer Blade Tips

Anmol Garg, Nagabhushana Rao Vadlamani, Balaji Srinivasan

Proc. ASME. GT2022, Volume 10B: Turbomachinery — Axial Flow Turbine Aerodynamics; Deposition, Erosion, Fouling, and Icing; Radial Turbomachinery Aerodynamics, V10BT30A030, June 13–17, 2022

Paper No: GT2022-82947

DOI: https://doi.org/10.1115/GT2022-82947

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Topics: Blades, Design, Pressure, Cavities, Accounting, Dynamics (Mechanics), Flow (Dynamics), Fluid dynamics, Heat, High pressure (Physics)

Journal Articles

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

Ananth Sivaramakrishnan Malathi, Massimiliano Nardini, Aditya Vaid, Nagabhushana Rao Vadlamani, Richard D. Sandberg

J. Turbomach. February 2023, 145(2): 021001.

Paper No: TURBO-22-1214

DOI: https://doi.org/10.1115/1.4055501

Published Online: October 11, 2022

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Topics: Boundary layers, Flow (Dynamics), Pressure gradient, Suction, Surface roughness, Turbulence, Simulation, Skin friction (Fluid dynamics), Turbine blades, Shapes

Proceedings Papers

Inverse Design of Airfoils Using Convolutional Neural Network and Deep Neural Network

Amit Kumar, Nagabhushana Rao Vadlamani

Proc. ASME. GTINDIA2021, ASME 2021 Gas Turbine India Conference, V001T02A001, December 2–3, 2021

Paper No: GTINDIA2021-74765

DOI: https://doi.org/10.1115/GTINDIA2021-74765

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Topics: Airfoils, Artificial neural networks, Design, Shapes, Pressure, Errors

Proceedings Papers

Modelling Wall-Pressure Spectra in Turbulent Boundary Layers Using Neural Networks

Akash Haridas, Nagabhushana Rao Vadlamani

Proc. ASME. GTINDIA2021, ASME 2021 Gas Turbine India Conference, V001T02A006, December 2–3, 2021

Paper No: GTINDIA2021-76301

DOI: https://doi.org/10.1115/GTINDIA2021-76301

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Topics: Artificial neural networks, Boundary layer turbulence, Modeling, Pressure, Spectra (Spectroscopy), Compressibility, Fluctuations (Physics), Pressure gradient

Journal Articles

Toward Future Installations: Mutual Interactions of Short Intakes With Modern High Bypass Fans

Nagabhushana Rao Vadlamani, Teng Cao, Rob Watson, Paul G. Tucker

J. Turbomach. August 2019, 141(8): 081013.

Paper No: TURBO-19-1024

DOI: https://doi.org/10.1115/1.4044080

Published Online: July 26, 2019

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Topics: Blades, Design, Flow (Dynamics), Pressure, Rotors, Separation (Technology), Shock (Mechanics), Simulation, Mach number, Engines

Journal Articles

Comparative Studies of RANS Versus Large Eddy Simulation for Fan–Intake Interaction

Yunfei Ma, Nagabhushana Rao Vadlamani, Jiahuan Cui, Paul Tucker

J. Fluids Eng. March 2019, 141(3): 031106.

Paper No: FE-18-1286

DOI: https://doi.org/10.1115/1.4041393

Published Online: October 5, 2018

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Topics: Flow (Dynamics), Large eddy simulation, Reynolds-averaged Navier–Stokes equations, Turbulence, Separation (Technology), Generators, Simulation, Rotors

Proceedings Papers

A Mixed-Fidelity Numerical Study for Fan-Distortion Interaction

Yunfei Ma, Jiahuan Cui, Nagabhushana Rao Vadlamani, Paul G. Tucker

Proc. ASME. GT2018, Volume 1: Aircraft Engine; Fans and Blowers; Marine, V001T01A002, June 11–15, 2018

Paper No: GT2018-75090

DOI: https://doi.org/10.1115/GT2018-75090

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Topics: Computational fluid dynamics, Design, Eddies (Fluid dynamics), Flow (Dynamics), Geometry, Large eddy simulation, Pressure, Rotors, Separation (Technology), Simulation

Journal Articles

A Mixed-Fidelity Numerical Study for Fan–Distortion Interaction

Yunfei Ma, Jiahuan Cui, Nagabhushana Rao Vadlamani, Paul Tucker

J. Turbomach. September 2018, 140(9): 091003.

Paper No: TURBO-18-1136

DOI: https://doi.org/10.1115/1.4040860

Published Online: August 20, 2018

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Topics: Blades, Flow (Dynamics), Geometry, Pressure, Rotors, Separation (Technology), Design, Simulation, Generators, Modeling

Proceedings Papers

Improved Hierarchical Modelling for Aerodynamically Coupled Systems

Rob Watson, Jiahuan Cui, Yunfei Ma, James Tyacke, Nagabhushana Rao Vadlamani, Mohammed F. Alam, Yushuang Dai, Paul G. Tucker, Teng Cao, Paul Hield, Mark Wilson, Kevin Menzies, Christopher Sheaf

Proc. ASME. GT2017, Volume 2B: Turbomachinery, V02BT41A056, June 26–30, 2017

Paper No: GT2017-65223

DOI: https://doi.org/10.1115/GT2017-65223

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Topics: Modeling, Geometry, Simulation, Aircraft engines, Blades, Compressors, Computation, Cross-flow, Cycles, Diffusers

Journal Articles

Fan–Intake Interaction Under High Incidence

Teng Cao, Nagabhushana Rao Vadlamani, Paul G. Tucker, Angus R. Smith, Michal Slaby, Christopher T. J. Sheaf

J. Eng. Gas Turbines Power. April 2017, 139(4): 041204.

Paper No: GTP-16-1336

DOI: https://doi.org/10.1115/1.4034701

Published Online: November 2, 2016

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Topics: Design, Flow (Dynamics), Mach number, Separation (Technology), Reynolds-averaged Navier–Stokes equations, Pressure, Simulation, Computational fluid dynamics

Proceedings Papers

Fan-Intake Interaction Under High Incidence

Teng Cao, Nagabhushana Rao Vadlamani, Paul G. Tucker, Angus R. Smith, Michal Slaby, Christopher T. J. Sheaf

Proc. ASME. GT2016, Volume 1: Aircraft Engine; Fans and Blowers; Marine, V001T01A014, June 13–17, 2016

Paper No: GT2016-56561

DOI: https://doi.org/10.1115/GT2016-56561

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Topics: Computer simulation, Delays, Design, Flow (Dynamics), Geometry, Mach number, Reynolds-averaged Navier–Stokes equations, Separation (Technology), Turbofans

Proceedings Papers

LES for Turbines: Methodologies, Cost and Future Outlooks

James Tyacke, Paul Tucker, Richard Jefferson-Loveday, Nagabhushana Rao Vadlamani, Robert Watson, Iftekhar Naqavi, Xiaoyu Yang

Proc. ASME. GT2013, Volume 6B: Turbomachinery, V06BT37A007, June 3–7, 2013

Paper No: GT2013-94416

DOI: https://doi.org/10.1115/GT2013-94416

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Topics: Turbines, Flow (Dynamics), Reynolds-averaged Navier–Stokes equations, Physics, Cooling, Design, Ducts, Eddies (Fluid dynamics), High pressure (Physics), Large eddy simulation

Journal citation

NARROW

Aerothermal Performance of Axially Varying Winglet-Squealer Blade Tips

Crosswind Aerodynamic Analysis Using Quasi 3D Ducts

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

Aerothermal Performance of Axially Varying Winglet-Squealer Blade Tips

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

Inverse Design of Airfoils Using Convolutional Neural Network and Deep Neural Network

Modelling Wall-Pressure Spectra in Turbulent Boundary Layers Using Neural Networks

Toward Future Installations: Mutual Interactions of Short Intakes With Modern High Bypass Fans

Comparative Studies of RANS Versus Large Eddy Simulation for Fan–Intake Interaction

A Mixed-Fidelity Numerical Study for Fan-Distortion Interaction

A Mixed-Fidelity Numerical Study for Fan–Distortion Interaction

Improved Hierarchical Modelling for Aerodynamically Coupled Systems

Fan–Intake Interaction Under High Incidence

Fan-Intake Interaction Under High Incidence

LES for Turbines: Methodologies, Cost and Future Outlooks

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