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Journal Articles

Excitation of a Separated Flow by a Series of Protuberances Near the Leading Edge of a Model Aerofoil

Pradeep Singh, S. Sarkar
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. November 2023, 145(11): 111001.
Paper No: TURBO-23-1047
https://doi.org/10.1115/1.4063048
Published Online: August 16, 2023
View Article titled, Excitation of a Separated Flow by a Series of Protuberances Near the Leading Edge of a Model Aerofoil
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Topics: Airfoils, Bubbles, Excitation, Flow (Dynamics), Separation (Technology), Shear (Mechanics), Turbulence, Fluctuations (Physics), Boundary layers
Proceedings Papers

Transition of a Laminar Separated Boundary Layer Under Varying Adverse Pressure Gradient

Ravi Kumar, Pradeep Singh, S. Sarkar
Proc. ASME. GT2022, Volume 10D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Turbomachinery General Interest; Unsteady Flows in Turbomachinery, V10DT37A029, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-83045
https://doi.org/10.1115/GT2022-83045
View Paper titled, Transition of a Laminar Separated Boundary Layer Under Varying Adverse Pressure Gradient
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Topics: Boundary layers, Bubbles, Pressure gradient, Separation (Technology)
Proceedings Papers

Effects of Freestream Turbulence on Air-Mist Film Cooling: Two-Phase Flow Simulations

Anjali Dwivedi, S. Sarkar
Proc. ASME. GT2022, Volume 6A: Heat Transfer — Combustors; Film Cooling, V06AT12A019, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-81923
https://doi.org/10.1115/GT2022-81923
View Paper titled, Effects of Freestream Turbulence on Air-Mist Film Cooling: Two-Phase Flow Simulations
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Topics: Film cooling, Gas turbines, Simulation, Turbulence, Two-phase flow
Proceedings Papers

Effect of Surface Corrugations on Laminar and Transitional Flows

Ishita Jain, S. Sarkar
Proc. ASME. GT2022, Volume 11: Wind Energy, V011T38A007, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-81910
https://doi.org/10.1115/GT2022-81910
View Paper titled, Effect of Surface Corrugations on Laminar and Transitional Flows
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Topics: Flow (Dynamics)
Proceedings Papers

Transitional Flow and Heat Transfer on the Pressure Surface of a C-D Compressor Blade

S. Katiyar, S. Sarkar
Proc. ASME. IMECE2021, Volume 10: Fluids Engineering, V010T10A014, November 1–5, 2021
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2021-71171
https://doi.org/10.1115/IMECE2021-71171
View Paper titled, Transitional Flow and Heat Transfer on the Pressure Surface of a C-D Compressor Blade
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Topics: Blades, Compressors, Flow (Dynamics), Heat transfer, Large eddy simulation, Pressure
Proceedings Papers

Effect of Hemispherical Protuberance on the Leading-Edge to Control the Laminar Separation Bubble

Pradeep Singh, S. Sarkar
Proc. ASME. IMECE2021, Volume 10: Fluids Engineering, V010T10A017, November 1–5, 2021
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2021-73068
https://doi.org/10.1115/IMECE2021-73068
View Paper titled, Effect of Hemispherical Protuberance on the Leading-Edge to Control the Laminar Separation Bubble
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Topics: Bubbles, Separation (Technology), Turbulence, Vortices
Journal Articles

Excitation of Shear Layer Due to Surface Roughness Near the Leading Edge: An Experiment

Pradeep Singh, S. Sarkar
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. May 2021, 143(5): 051301.
Paper No: FE-20-1373
https://doi.org/10.1115/1.4049685
Published Online: February 8, 2021
View Article titled, Excitation of Shear Layer Due to Surface Roughness Near the Leading Edge: An Experiment
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Topics: Bubbles, Excitation, Shear (Mechanics), Surface roughness, Flow (Dynamics), Turbulence, Separation (Technology), Boundary layers
Proceedings Papers

Leading Edge Contamination of a C-D Compressor Blade Using Large Eddy Simulation

S. Katiyar, S. Sarkar
Proc. ASME. GT2020, Volume 2A: Turbomachinery, V02AT32A002, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14192
https://doi.org/10.1115/GT2020-14192
View Paper titled, Leading Edge Contamination of a C-D Compressor Blade Using Large Eddy Simulation
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Topics: Blades, Compressors, Contamination, Large eddy simulation, Separation (Technology)
Proceedings Papers

Large Eddy Simulation of Wake-Shear Layer Interactions Over a Multi-Element Aerofoil

Souvik Naskar, S. Sarkar
Proc. ASME. GT2020, Volume 2E: Turbomachinery, V02ET41A001, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14115
https://doi.org/10.1115/GT2020-14115
View Paper titled, Large Eddy Simulation of Wake-Shear Layer Interactions Over a Multi-Element Aerofoil
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Topics: Airfoils, Large eddy simulation, Shear (Mechanics), Wakes
Proceedings Papers

Flow and Heat Transfer Analysis of Mist-Film Cooling on a Flat Plate

Anjali Dwivedi, Ankit Verma, S. Sarkar
Proc. ASME. GTINDIA2017, Volume 1: Compressors, Fans and Pumps; Turbines; Heat Transfer; Combustion, Fuels and Emissions, V001T03A005, December 7–8, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GTINDIA2017-4568
https://doi.org/10.1115/GTINDIA2017-4568
View Paper titled, Flow and Heat Transfer Analysis of Mist-Film Cooling on a Flat Plate
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Topics: Cooling, Flat plates, Flow (Dynamics), Heat transfer, Drops, Blades, Latent heat, Absorption, Computation, Computer simulation
Proceedings Papers

Absolute and Convective Instabilities of a Separated Boundary Layer Near the Leading Edge of an Aerofoil

S. Sarkar, K. S. Jadhav
Proc. ASME. GT2017, Volume 2D: Turbomachinery, V02DT46A031, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-65265
https://doi.org/10.1115/GT2017-65265
View Paper titled, Absolute and Convective Instabilities of a Separated Boundary Layer Near the Leading Edge of an Aerofoil
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Topics: Airfoils, Boundary layers, Impulse (Physics), Chords (Trusses), Deflection, Flow (Dynamics), Particulate matter, Reynolds number, Spacetime, Stability
Journal Articles

A Passivity-Based Power-Shaping Control of Building HVAC Systems

V. Chinde, K. C. Kosaraju, A. Kelkar, R. Pasumarthy, S. Sarkar, N. M. Singh
Journal: Journal of Dynamic Systems, Measurement, and Control
Publisher: ASME
Article Type: Research-Article
J. Dyn. Sys., Meas., Control. November 2017, 139(11): 111007.
Paper No: DS-16-1393
https://doi.org/10.1115/1.4036885
Published Online: July 28, 2017
View Article titled, A Passivity-Based Power-Shaping Control of Building HVAC Systems
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Topics: Air conditioning, Control equipment, Control systems, Dynamics (Mechanics), Equilibrium (Physics), Heat exchangers, Heating, HVAC equipment, Simulation, Storage
Journal Articles

Effect of Vortex Generators on Film Cooling Effectiveness

S. Sarkar, Ganesh Ranakoti
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. June 2017, 139(6): 061009.
Paper No: TURBO-16-1203
https://doi.org/10.1115/1.4035275
Published Online: February 7, 2017
View Article titled, Effect of Vortex Generators on Film Cooling Effectiveness
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Topics: Film cooling, Generators, Vortices, Flow (Dynamics), Coolants
Journal Articles

Features of a Laminar Separated Boundary Layer Near the Leading-Edge of a Model Airfoil for Different Angles of Attack: An Experimental Study

K. Anand, S. Sarkar
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. February 2017, 139(2): 021201.
Paper No: FE-15-1723
https://doi.org/10.1115/1.4034606
Published Online: November 3, 2016
View Article titled, Features of a Laminar Separated Boundary Layer Near the Leading-Edge of a Model Airfoil for Different Angles of Attack: An Experimental Study
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Topics: Airfoils, Boundary layers, Bubbles, Flow (Dynamics), Separation (Technology), Turbulence, Fluctuations (Physics), Shear (Mechanics)
Journal Articles

Large Eddy Simulation of Self-Sustained Cavity Oscillation for Subsonic and Supersonic Flows

K. M. Nair, S. Sarkar
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. January 2017, 139(1): 011102.
Paper No: FE-15-1493
https://doi.org/10.1115/1.4034371
Published Online: October 18, 2016
View Article titled, Large Eddy Simulation of Self-Sustained Cavity Oscillation for Subsonic and Supersonic Flows
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Topics: Acoustics, Cavities, Eddies (Fluid dynamics), Flow (Dynamics), Oscillations, Shear (Mechanics), Supersonic flow, Vortices, Waves, Feedback
Proceedings Papers

Effect of Vortex Generators on Film Cooling Effectiveness

S. Sarkar, Ganesh Ranakoti
Proc. ASME. GTINDIA2015, ASME 2015 Gas Turbine India Conference, V001T04A007, December 2–3, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GTINDIA2015-1392
https://doi.org/10.1115/GTINDIA2015-1392
View Paper titled, Effect of Vortex Generators on Film Cooling Effectiveness
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Topics: Film cooling, Generators, Vortices, Jets, Combustion chambers, Computation, Coolants, Density, Flat plates, Gases
Proceedings Papers

Thermal Analysis of a Turbine Blade: Effect of Film Cooling and Internal Convective Cooling

S. Sarkar, P. Gupta
Proc. ASME. GTINDIA2015, ASME 2015 Gas Turbine India Conference, V001T04A003, December 2–3, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GTINDIA2015-1296
https://doi.org/10.1115/GTINDIA2015-1296
View Paper titled, Thermal Analysis of a Turbine Blade: Effect of Film Cooling and Internal Convective Cooling
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Topics: Cooling, Film cooling, Thermal analysis, Turbine blades, Blades, Gas turbines, Heat transfer, Suction, Aerodynamics, Computational fluid dynamics
Journal Articles

Interactions of Separation Bubble With Oncoming Wakes by Large-Eddy Simulation

S. Sarkar, Harish Babu, Jasim Sadique
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. February 2016, 138(2): 021703.
Paper No: HT-14-1534
https://doi.org/10.1115/1.4031645
Published Online: October 21, 2015
View Article titled, Interactions of Separation Bubble With Oncoming Wakes by Large-Eddy Simulation
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Topics: Boundary layers, Bubbles, Flow (Dynamics), Heat transfer, Separation (Technology), Turbulence, Wakes, Vortices, Temperature, Fluctuations (Physics)
Journal Articles

Effects of Free-Stream Turbulence on Transition of a Separated Boundary Layer Over the Leading-Edge of a Constant Thickness Airfoil

A. Samson, S. Sarkar
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. February 2016, 138(2): 021202.
Paper No: FE-14-1220
https://doi.org/10.1115/1.4031249
Published Online: September 3, 2015
View Article titled, Effects of Free-Stream Turbulence on Transition of a Separated Boundary Layer Over the Leading-Edge of a Constant Thickness Airfoil
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Topics: Boundary layers, Bubbles, Flow (Dynamics), Turbulence, Separation (Technology), Airfoils, Shear (Mechanics)
Proceedings Papers

Experiments on Leading-Edge Induced Separated Shear Layer Under Various Imposed Pressure Gradients

K. Anand, S. Sarkar, N. Thilakan
Proc. ASME. GTINDIA2014, ASME 2014 Gas Turbine India Conference, V001T05A003, December 15–17, 2014
Publisher: American Society of Mechanical Engineers
Paper No: GTINDIA2014-8177
https://doi.org/10.1115/GTINDIA2014-8177
View Paper titled, Experiments on Leading-Edge Induced Separated Shear Layer Under Various Imposed Pressure Gradients
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Topics: Pressure gradient, Shear (Mechanics), Separation (Technology), Bubbles, Flow (Dynamics), Reynolds number, Chords (Trusses), Deflection, Dimensions, Flat plates