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Journal Articles

Local Cooling Enhancement in Incremental Impingement Pin-Fin Configurations: Role of Jet Diameter and Impingement Configurations

Susheel Singh, Sumanta Acharya, Forrest E. Ames
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. June 2025, 147(6): 061001.
Paper No: HT-24-1287
https://doi.org/10.1115/1.4068065
Published Online: April 1, 2025
View Articletitled, Local Cooling Enhancement in Incremental Impingement Pin-Fin Configurations: Role of Jet Diameter and Impingement Configurations
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Topics: Cooling, Flow (Dynamics), Heat transfer, Jets, Pressure drop, Coolants, Fins, Boundary-value problems, Friction
Proceedings Papers

Impingement Flow and Heat Transfer With Fractal Grids

Chen Tang, Sumanta Acharya
Proc. ASME. GT2024, Volume 8: Heat Transfer: Internal Air Systems; Heat Transfer: Internal Cooling; Industrial and Cogeneration, V008T15A034, June 24–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: GT2024-129520
https://doi.org/10.1115/GT2024-129520
View Paper titled, Impingement Flow and Heat Transfer With Fractal Grids
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Topics: Flow (Dynamics), Fractals, Heat transfer
Proceedings Papers

Enhancements to Impingement Heat Transfer Through Nozzle Geometry Modifications

Laura-Cebrian Ortiz, Sumanta Acharya
Proc. ASME. GT2023, Volume 7B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V07BT15A012, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-104178
https://doi.org/10.1115/GT2023-104178
View Paper titled, Enhancements to Impingement Heat Transfer Through Nozzle Geometry Modifications
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Topics: Geometry, Heat transfer, Nozzles
Journal Articles

In Memoriam: Professor Essam E. Khalil —A Tribute to An Outstanding Educator and Researcher

Mohamed M. Awad, S. A. Sherif, Heba Allah Essam E. Khalil, Adel Khalil, Tom I-P. Shih, Omar Abdelaziz, Tarek Abdel-Salam, Ryo S. Amano, Ashwani K. Gupta, Michael Brooks, Bhupendra Khandelwal, Nesrin Ozalp, David Carrington, Suresh K. Aggarwal, Sumanta Acharya, Farzad Mashayek, Xiuling Wang, William E. Lear
Journal: Journal of Solar Energy Engineering
Publisher: ASME
Article Type: In Memoriam
J. Sol. Energy Eng. August 2023, 145(4): 040101.
Paper No: SOL-23-1098
https://doi.org/10.1115/1.4062476
Published Online: May 23, 2023
View Articletitled, In Memoriam: Professor Essam E. Khalil —A Tribute to An Outstanding Educator and Researcher
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Topics: Engineering teachers
Journal Articles

The Influence of Turbulence and Reynolds Number on Endwall Heat Transfer in a Vane Cascade

Maliha Yel Mahi, Emmanuel Chukwuemeka, Shaun Donovan, Forrest Ames, Yousef Kanani, Sumanta Acharya
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2023, 145(7): 071012.
Paper No: TURBO-22-1291
https://doi.org/10.1115/1.4056778
Published Online: February 10, 2023
View Articletitled, The Influence of Turbulence and Reynolds Number on Endwall Heat Transfer in a Vane Cascade
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Topics: Cascades (Fluid dynamics), Heat transfer, Reynolds number, Turbulence, Flow (Dynamics), Pressure
Proceedings Papers

The Influence of Turbulence and Reynolds Number on Endwall Heat Transfer in a Vane Cascade

Maliha Yel Mahi, Emmanuel Chukwuemeka, Shaun Donovan, Forrest Ames, Yousef Kanani, Sumanta Acharya
Proc. ASME. GT2022, Volume 6B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V06BT13A022, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-83477
https://doi.org/10.1115/GT2022-83477
View Paper titled, The Influence of Turbulence and Reynolds Number on Endwall Heat Transfer in a Vane Cascade
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Topics: Cascades (Fluid dynamics), Heat transfer, Reynolds number, Turbulence, Flow (Dynamics), Chords (Trusses), Cooling, Design, Resolution (Optics), Suction
Proceedings Papers

A Numerical Analysis of a Conical Swirl-Stabilized Spray Burner

Boris D. Stojkovic, Sumanta Acharya, Tim G. Morgan, Kevin J. Zanca, Michael J. Graf, Ephraim Gutmark
Proc. ASME. IMECE97, Heat Transfer: Volume 2, 109-118, November 16–21, 1997
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1997-0873
https://doi.org/10.1115/IMECE1997-0873
View Paper titled, A Numerical Analysis of a Conical Swirl-Stabilized Spray Burner
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Topics: Numerical analysis, Sprays, Fuels, Drops, Computational fluid dynamics, Flames, Flow (Dynamics), Momentum, Shapes, Stability
Proceedings Papers

Direct Numerical Simulation of a Coolant Jet in a Periodic Crossflow

Chirdeep Sharma, Sumanta Acharya
Proc. ASME. IMECE98, Heat Transfer: Volume 3 — Application of Heat Transfer in Equipment, Systems, and Education, 363-388, November 15–20, 1998
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1998-0671
https://doi.org/10.1115/IMECE1998-0671
View Paper titled, Direct Numerical Simulation of a Coolant Jet in a Periodic Crossflow
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Topics: Computer simulation, Coolants, Vortices, Engineering simulation, Simulation, Dynamics (Mechanics), Flow (Dynamics), Pressure, Reynolds number, Shear (Mechanics)
Proceedings Papers

Influence of Cross-Flow Induced Swirl and Impingement on Heat Transfer in an Internal Coolant Passage of a Turbine Airfoil

Srinath V. Ekkad, Gautam Pamula, Sumanta Acharya
Proc. ASME. IMECE99, Heat Transfer: Volume 1, 227-233, November 14–19, 1999
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1999-0989
https://doi.org/10.1115/IMECE1999-0989
View Paper titled, Influence of Cross-Flow Induced Swirl and Impingement on Heat Transfer in an Internal Coolant Passage of a Turbine Airfoil
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Topics: Airfoils, Coolants, Cross-flow, Heat transfer, Turbines, Flow (Dynamics), Design, Flow turning, Friction, Heat transfer coefficients
Proceedings Papers

Large Eddy Simulations of Jets in Crossflow: Large Scale Turbulence Effects

Mayank Tyagi, Sumanta Acharya
Proc. ASME. IMECE99, Heat Transfer: Volume 1, 209-218, November 14–19, 1999
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1999-0987
https://doi.org/10.1115/IMECE1999-0987
View Paper titled, Large Eddy Simulations of Jets in Crossflow: Large Scale Turbulence Effects
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Topics: Jets, Large eddy simulation, Turbulence, Waves, Coolants, Friction, Reynolds number, Stress, Vortices, Wakes
Proceedings Papers

Three-Dimensional Flow and Heat Transfer Calculations in Micro-Channel Heat Exchangers

A. K. Saha, Sumanta Acharya
Proc. ASME. IMECE2001, Heat Transfer: Volume 7 — Heat Transfer in Electronic Equipment, Student Research, and Visualization Techniques, 199-208, November 11–16, 2001
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2001/HTD-24394
https://doi.org/10.1115/IMECE2001/HTD-24394
View Paper titled, Three-Dimensional Flow and Heat Transfer Calculations in Micro-Channel Heat Exchangers
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Topics: Flow (Dynamics), Heat exchangers, Heat transfer, Microchannels, Reynolds number, Cylinders, Friction, Computer cooling, Convection, Cooling
Proceedings Papers

Simultaneous Measurements of Droplet Size, Temperature, and Velocity Using an Integrated Phase-Doppler/Rainbow Thermometer

Matt O’ Donnell, Sumanta Acharya
Proc. ASME. IMECE2001, Heat Transfer: Volume 4 — Combustion and Energy Systems, 173-179, November 11–16, 2001
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2001/HTD-24257
https://doi.org/10.1115/IMECE2001/HTD-24257
View Paper titled, Simultaneous Measurements of Droplet Size, Temperature, and Velocity Using an Integrated Phase-Doppler/Rainbow Thermometer
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Topics: Drops, Temperature, Thermometers, Combustion chambers, Instrumentation, Refractive index, Flames, Flight, Lasers, Noise (Sound)
Proceedings Papers

Film Cooling on a Flat Surface With a Single Row of Cylindrical Angled Holes: Effect of Discrete Tabs

Srinath V. Ekkad, Hasan Nasir, Sumanta Acharya
Proc. ASME. IMECE2000, Heat Transfer: Volume 3, 3-12, November 5–10, 2000
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2000-1455
https://doi.org/10.1115/IMECE2000-1455
View Paper titled, Film Cooling on a Flat Surface With a Single Row of Cylindrical Angled Holes: Effect of Discrete Tabs
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Topics: Film cooling, Wind tunnels, Liquid crystals, Reynolds number, Transients (Dynamics), Turbulence
Proceedings Papers

Mass/Heat Transfer in Rotating Dimpled Turbine-Blade Coolant Passages

Sumanta Acharya, Fuguo Zhou
Proc. ASME. IMECE2000, Heat Transfer: Volume 3, 51-60, November 5–10, 2000
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2000-1460
https://doi.org/10.1115/IMECE2000-1460
View Paper titled, Mass/Heat Transfer in Rotating Dimpled Turbine-Blade Coolant Passages
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Topics: Coolants, Heat transfer, Turbine blades, Mass transfer, Flow (Dynamics), Rotation, Cooling, Reynolds number
Journal Articles

Phase-Change Process Inside a Small-Radii Cylinder Subjected to Cyclic Convective Boundary Conditions: A Numerical Study

Yousef Kanani, Avijit Karmakar, Sumanta Acharya
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. October 2021, 143(10): 102401.
Paper No: HT-21-1363
https://doi.org/10.1115/1.4052085
Published Online: September 8, 2021
View Articletitled, Phase-Change Process Inside a Small-Radii Cylinder Subjected to Cyclic Convective Boundary Conditions: A Numerical Study
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Topics: Boundary-value problems, Cylinders, Freezing, Heat transfer, Melting, Temperature, Enthalpy, Phase change materials, Heating and cooling
Journal Articles

Numerical Predictions of Turbine Cascade Secondary Flows and Heat Transfer With Inflow Turbulence

Yousef Kanani, Sumanta Acharya, Forrest Ames
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. December 2021, 143(12): 121008.
Paper No: TURBO-20-1260
https://doi.org/10.1115/1.4051555
Published Online: July 13, 2021
View Articletitled, Numerical Predictions of Turbine Cascade Secondary Flows and Heat Transfer With Inflow Turbulence
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Topics: Boundary layers, Flow (Dynamics), Heat transfer, Inflow, Pressure, Suction, Turbulence, Vortices, Corners (Structural elements), Turbines
Proceedings Papers

Impingement Heat Transfer From a Jet-Array With In-Between Return Holes for the Crossflow

Chen Tang, Sumanta Acharya
Proc. ASME. GT2020, Volume 7A: Heat Transfer, V07AT15A025, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15742
https://doi.org/10.1115/GT2020-15742
View Paper titled, Impingement Heat Transfer From a Jet-Array With In-Between Return Holes for the Crossflow
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Topics: Heat transfer
Proceedings Papers

Numerical Predictions of Turbine Cascade Secondary Flows and Heat Transfer With Inflow Turbulence

Yousef Kanani, Sumanta Acharya, Forrest Ames
Proc. ASME. GT2020, Volume 7B: Heat Transfer, V07BT12A059, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15654
https://doi.org/10.1115/GT2020-15654
View Paper titled, Numerical Predictions of Turbine Cascade Secondary Flows and Heat Transfer With Inflow Turbulence
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Topics: Cascades (Fluid dynamics), Flow (Dynamics), Heat transfer, Inflow, Turbines, Turbulence, Vortices, Suction, Boundary layers, Pressure
Journal Articles

Wettability Effects on Falling Film Flow and Heat Transfer Over Horizontal Tubes in Jet Flow Mode

Avijit Karmakar, Sumanta Acharya
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. December 2020, 142(12): 122301.
Paper No: HT-19-1622
https://doi.org/10.1115/1.4048088
Published Online: September 18, 2020
View Articletitled, Wettability Effects on Falling Film Flow and Heat Transfer Over Horizontal Tubes in Jet Flow Mode
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Topics: Equilibrium (Physics), Film flow, Flow (Dynamics), Fluids, Heat transfer, Jets, Film thickness, Simulation, Wetting, Liquid films
Journal Articles

Large Eddy Simulation of Bypass Transition in Vane Passage With Freestream Turbulence

Yousef Kanani, Sumanta Acharya, Forrest Ames
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. June 2020, 142(6): 061002.
Paper No: TURBO-20-1015
https://doi.org/10.1115/1.4046461
Published Online: May 12, 2020
View Articletitled, Large Eddy Simulation of Bypass Transition in Vane Passage With Freestream Turbulence
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Topics: Turbulence, Suction, Heat transfer, Pressure, Flow (Dynamics), Boundary layers