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Journal Articles

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

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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 Articletitled, 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

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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

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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

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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

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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

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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

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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 Articletitled, 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

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

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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

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

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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

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

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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

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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

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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 Articletitled, 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

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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 Articletitled, 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

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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 Articletitled, Features of a Laminar Separated Boundary Layer Near the Leading-Edge of a Model Airfoil for Different Angles of Attack: An Experimental Study
Open the PDF for Features of a Laminar Separated Boundary Layer Near the Leading-Edge of a Model Airfoil for Different Angles of Attack: An Experimental Study in another window
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

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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 Articletitled, 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

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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

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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

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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 Articletitled, 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

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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 Articletitled, 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

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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