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Journal Articles

Effects of Variable Pressure Outlets for Array Jet Impingement Cooling With a Bidirectional Exit Air Scheme

Michael Bonds, Jr., Ganesh Subbarama Iyer, Srinath V. Ekkad
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. November 2023, 145(11): 113801.
Paper No: HT-23-1014
https://doi.org/10.1115/1.4063106
Published Online: September 4, 2023
View Article titled, Effects of Variable Pressure Outlets for Array Jet Impingement Cooling With a Bidirectional Exit Air Scheme
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Topics: Flow (Dynamics), Impingement cooling, Liquid crystals, Reynolds number, Temperature, Transients (Dynamics), Jets, Heat transfer coefficients, Pressure, Combustion
Proceedings Papers

Detailed Heat Transfer Coefficient Distributions Under an Array of Impinging Jets With Coolant Extraction

Yizhe Huang, Srinath V. Ekkad, Je-Chin Han
Proc. ASME. IMECE96, Heat Transfer: Volume 2 — Heat Transfer in Turbulent Flows; Fundamentals of Convection Heat Transfer; Fundamentals of Natural Convection in Laminar and Turbulent Flows; Natural Circulation, 143-150, November 17–22, 1996
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1996-0067
https://doi.org/10.1115/IMECE1996-0067
View Paper titled, Detailed Heat Transfer Coefficient Distributions Under an Array of Impinging Jets With Coolant Extraction
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Topics: Coolants, Heat transfer coefficients, Jets, Heat transfer, Flow (Dynamics), Coating processes, Coatings, Impingement cooling, Liquid crystals, Pressure
Proceedings Papers

Effusion Cooling: Influence of Pressure Drop

Michael Bonds, Jr., Benjamin H. Wahls, Srinath V. Ekkad, Nagaraja Rudrapatna, Rudy Dudebout, Ryan Meyer
Proc. ASME. GT2022, Volume 6A: Heat Transfer — Combustors; Film Cooling, V06AT11A003, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82067
https://doi.org/10.1115/GT2022-82067
View Paper titled, Effusion Cooling: Influence of Pressure Drop
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Topics: Combustion gases, Cooling, Pressure drop
Journal Articles

Effect of Spanwise Hole-to-Hole Spacing on Overall Cooling Effectiveness of Effusion Cooled Combustor Liners for a Swirl-Stabilized Can Combustor

Shoaib Ahmed, Benjamin H. Wahls, Srinath V. Ekkad, Hanjie Lee, Yin-Hsiang Ho
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2022, 144(7): 071015.
Paper No: TURBO-21-1168
https://doi.org/10.1115/1.4054442
Published Online: May 27, 2022
View Article titled, Effect of Spanwise Hole-to-Hole Spacing on Overall Cooling Effectiveness of Effusion Cooled Combustor Liners for a Swirl-Stabilized Can Combustor
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Topics: Combustion chambers, Cooling, Flow (Dynamics), Coolants, Temperature
Journal Articles

Effect of Pin Fins on Jet Impingement Heat Transfer Over a Rotating Disk

Pratik S. Bhansali, Kishore Ranganath Ramakrishnan, Srinath V. Ekkad
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. April 2022, 144(4): 042303.
Paper No: HT-21-1503
https://doi.org/10.1115/1.4053371
Published Online: February 10, 2022
View Article titled, Effect of Pin Fins on Jet Impingement Heat Transfer Over a Rotating Disk
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Topics: Disks, Fins, Flow (Dynamics), Heat transfer, Nozzles, Rotating disks, Rotation, Heat losses, Reynolds number
Includes: Supplementary data
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

Dimple Enhanced Heat Transfer in High Aspect Ratio Channels

Srinath V. Ekkad, Hasan Nasir
Proc. ASME. IMECE2001, Heat Transfer: Volume 5 — Computational, Aerospace and Environmental Heat Transfer, 385-391, November 11–16, 2001
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2001/HTD-24322
https://doi.org/10.1115/IMECE2001/HTD-24322
View Paper titled, Dimple Enhanced Heat Transfer in High Aspect Ratio Channels
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Topics: Heat transfer, Pressure drop, Channel flow, Flow (Dynamics), Heat transfer coefficients, Liquid crystals, Reynolds number, Transients (Dynamics)
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

Effect of Rotation on Heat Transfer in AR = 2:1 and AR = 4:1 Channels Connected by a Series of Crossover Jets

Srivatsan Madhavan, Prashant Singh, Srinath V. Ekkad
Proc. ASME. GT2021, Volume 5B: Heat Transfer — General Interest; Internal Air Systems; Internal Cooling, V05BT15A014, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59426
https://doi.org/10.1115/GT2021-59426
View Paper titled, Effect of Rotation on Heat Transfer in AR = 2:1 and AR = 4:1 Channels Connected by a Series of Crossover Jets
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Topics: Heat transfer, Jets, Rotation, Cooling, Fins, Flow (Dynamics), Blades, Chords (Trusses), Coolants, Gas turbines
Proceedings Papers

Effect of Variation of Pin-fin Height on Jet Impingement Heat Transfer on a Rotating Surface

Pratik S. Bhansali, Srinath V. Ekkad
Proc. ASME. HT2021, ASME 2021 Heat Transfer Summer Conference, V001T04A006, June 16–18, 2021
Publisher: American Society of Mechanical Engineers
Paper No: HT2021-63946
https://doi.org/10.1115/HT2021-63946
View Paper titled, Effect of Variation of Pin-fin Height on Jet Impingement Heat Transfer on a Rotating Surface
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Topics: Disks, Fins, Heat transfer, Rotating disks, Rotation, Aluminum, Cooling, Gas turbines, Gases, Reynolds number
Journal Articles

Characterization of Transient Wall Heat Load for a Low NOx Lean Premixed Swirl Stabilized Can Combustor Under Reacting Conditions

Kishore Ranganath Ramakrishnan, Shoaib Ahmed, Srinath V. Ekkad
Journal: Journal of Thermal Science and Engineering Applications
Publisher: ASME
Article Type: Research Papers
J. Thermal Sci. Eng. Appl. February 2022, 14(2): 021012.
Paper No: TSEA-21-1060
https://doi.org/10.1115/1.4051375
Published Online: June 22, 2021
View Article titled, Characterization of Transient Wall Heat Load for a Low NOx Lean Premixed Swirl Stabilized Can Combustor Under Reacting Conditions
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Topics: Combustion chambers, Flames, Heat, Reynolds number, Stress, Transients (Dynamics), Temperature, Nitrogen oxides, Particulate matter, Heat flux
Journal Articles

Overall Cooling Effectiveness of Effusion Cooled Can Combustor Liner Under Reacting and Non-Reacting Conditions

Shoaib Ahmed, Kishore Ranganath Ramakrishnan, Srinath V. Ekkad
Journal: Journal of Thermal Science and Engineering Applications
Publisher: ASME
Article Type: Research Papers
J. Thermal Sci. Eng. Appl. February 2022, 14(2): 021009.
Paper No: TSEA-21-1160
https://doi.org/10.1115/1.4051371
Published Online: June 18, 2021
View Article titled, Overall Cooling Effectiveness of Effusion Cooled Can Combustor Liner Under Reacting and Non-Reacting Conditions
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Topics: Combustion chambers, Cooling, Flow (Dynamics), Temperature, Coolants
Journal Articles

A Modern Review on Jet Impingement Heat Transfer Methods

Srinath V. Ekkad, Prashant Singh
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Technology Review
J. Heat Mass Transfer. June 2021, 143(6): 064001.
Paper No: HT-20-1557
https://doi.org/10.1115/1.4049496
Published Online: April 21, 2021
View Article titled, A Modern Review on Jet Impingement Heat Transfer Methods
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Topics: Heat transfer, Flow (Dynamics), Jets
Proceedings Papers

Parametric Study on Micro-Roughness Shapes for Enhanced Jet Impingement Heat Transfer

Ramaswamy Devakottai, Srivatsan Madhavan, Prashant Singh, Srinath V. Ekkad
Proc. ASME. GT2020, Volume 7A: Heat Transfer, V07AT15A018, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15051
https://doi.org/10.1115/GT2020-15051
View Paper titled, Parametric Study on Micro-Roughness Shapes for Enhanced Jet Impingement Heat Transfer
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Topics: Heat transfer, Shapes, Surface roughness
Journal Articles

Professor Satish G. Kandlikar on His 70th Birthday

Mohamed M. Awad, Daniel Attinger, Adrian Bejan, Ali Beskok, Gian Piero Celata, Stéphane Colin, Vijay K. Dhir, Paolo Di Marco, Srinath V. Ekkad, Srinivas Garimella, Masahiro Kawaji, Michael R. King, Norbert Kockmann, Jon Kriegel, Sushanta K. Mitra, Saeed Moghaddam, Yuri S. Muzychka, Vinod Narayanan, Gherhardt Ribatski, S. A. Sherif, Masahiro Shoji, Peter Stephan, John R. Thome, Patricia B. Weisensee
Journal: Journal of Thermal Science and Engineering Applications
Publisher: ASME
Article Type: Guest Editorial
J. Thermal Sci. Eng. Appl. December 2020, 12(6): 060301.
Paper No: TSEA-20-1603
https://doi.org/10.1115/1.4048813
Published Online: November 24, 2020
View Article titled, Professor Satish G. Kandlikar on His 70th Birthday
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Topics: Engineering teachers, Heat transfer
Journal Articles

Experimental and Numerical Study of Chord-Wise Eight-Passage Serpentine Cooling Design for Eliminating the Coriolis Force Adverse Effect on Heat Transfer

Prashant Singh, Ajay Sarja, Srinath V. Ekkad
Journal: Journal of Thermal Science and Engineering Applications
Publisher: ASME
Article Type: Research Papers
J. Thermal Sci. Eng. Appl. February 2021, 13(1): 011026.
Paper No: TSEA-19-1128
https://doi.org/10.1115/1.4047655
Published Online: August 11, 2020
View Article titled, Experimental and Numerical Study of Chord-Wise Eight-Passage Serpentine Cooling Design for Eliminating the Coriolis Force Adverse Effect on Heat Transfer
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Topics: Coolants, Cooling, Coriolis force, Flow (Dynamics), Fluids, Heat transfer, Heat transfer coefficients, Reynolds number, Rotation, Temperature
Journal Articles

Array Jet Impingement on High Porosity Thin Metal Foams: Effect of Foam Height, Pore-Density, and Spent Air Crossflow Scheme on Flow Distribution and Heat Transfer

Vivek Subramaniam Sambamurthy, Srivatsan Madhavan, Prashant Singh, Srinath V. Ekkad
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. November 2020, 142(11): 112301.
Paper No: HT-20-1060
https://doi.org/10.1115/1.4047560
Published Online: July 17, 2020
View Article titled, Array Jet Impingement on High Porosity Thin Metal Foams: Effect of Foam Height, Pore-Density, and Spent Air Crossflow Scheme on Flow Distribution and Heat Transfer
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Topics: Density, Flow (Dynamics), Heat transfer, Metal foams, Foams (Chemistry), Heat transfer coefficients, Porosity
Journal Articles

Three-Dimensional Transient Heat Conduction Equation Solution for Accurate Determination of Heat Transfer Coefficient

Shoaib Ahmed, Prashant Singh, Srinath V. Ekkad
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. May 2020, 142(5): 051302.
Paper No: HT-19-1279
https://doi.org/10.1115/1.4044678
Published Online: March 17, 2020
View Article titled, Three-Dimensional Transient Heat Conduction Equation Solution for Accurate Determination of Heat Transfer Coefficient
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Topics: Heat conduction, Heat transfer coefficients, Liquid crystals, Thermography, Temperature, Transient heat transfer
Proceedings Papers

Three-Dimensional Transient Heat Conduction Equation Solution for Accurate Quantification of Heat Transfer Coefficient in Transient Liquid Crystal Experiments

Shoaib Ahmed, Prashant Singh, Srinath V. Ekkad
Proc. ASME. IMECE2019, Volume 8: Heat Transfer and Thermal Engineering, V008T09A059, November 11–14, 2019
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2019-10760
https://doi.org/10.1115/IMECE2019-10760
View Paper titled, Three-Dimensional Transient Heat Conduction Equation Solution for Accurate Quantification of Heat Transfer Coefficient in Transient Liquid Crystal Experiments
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Topics: Heat conduction, Heat transfer coefficients, Liquid crystals, Transient heat transfer, Transients (Dynamics), Errors, Temperature, Thermography, Heat, Heat transfer
Proceedings Papers

Impingement Heat Transfer of Various Lobe-Shaped Nozzles

Sanskar S. Panse, Srivatsan Madhavan, Prashant Singh, Srinath V. Ekkad
Proc. ASME. IMECE2019, Volume 8: Heat Transfer and Thermal Engineering, V008T09A037, November 11–14, 2019
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2019-10660
https://doi.org/10.1115/IMECE2019-10660
View Paper titled, Impingement Heat Transfer of Various Lobe-Shaped Nozzles
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Topics: Heat transfer, Jets, Nozzles, Thermography, Convection, Diffusion (Physics), Heat transfer coefficients, Reynolds number, Steady state