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Ishan Verma
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Proceedings Papers

Tuning of Generalized K-Omega Turbulence Model by Using Adjoint Optimization and Machine Learning for Gas Turbine Combustor Applications

George Klavaris, Min Xu, Saurabh Patwardhan, Ishan Verma, Stefano Orsino, Pravin Nakod
Proc. ASME. GT2023, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A049, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103649
https://doi.org/10.1115/GT2023-103649
View Paper titled, Tuning of Generalized K-Omega Turbulence Model by Using Adjoint Optimization and Machine Learning for Gas Turbine Combustor Applications
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Topics: Artificial neural networks, Combustion chambers, Gas turbines, Machine learning, Modeling, Optimization, Turbulence
Proceedings Papers

Computationally Efficient Workflow for Conjugate Heat Transfer With LES for Gas Turbine Combustors

Ishan Verma, Sudhanshu Prasad, Krishna Zore, Sourabh Shrivastava
Proc. ASME. GT2023, Volume 7A: Heat Transfer — Combustors; Film Cooling, V07AT11A006, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103677
https://doi.org/10.1115/GT2023-103677
View Paper titled, Computationally Efficient Workflow for Conjugate Heat Transfer With LES for Gas Turbine Combustors
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Topics: Combustion chambers, Gas turbines, Heat transfer, Workflow, Cooling, Engineering simulation, Modeling, Simulation, Fluids, Radiation (Physics)
Proceedings Papers

Numerical Simulation of Turbulent Premixed Flames Using Thickened Flame Model

Yu Xia, Ashish Newale, Rakesh Yadav, Ishan Verma, Didier Bessette
Proc. ASME. GT2023, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A047, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102039
https://doi.org/10.1115/GT2023-102039
View Paper titled, Numerical Simulation of Turbulent Premixed Flames Using Thickened Flame Model
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Topics: Computer simulation, Flames, Turbulence, Simulation, Chemistry, Heat, Combustion, Eddies (Fluid dynamics), Filters, Flow (Dynamics)
Proceedings Papers

Assessment of Flamelet Generated Manifold Approach With Inclusion of Stretch Effects of Pure Hydrogen Flames

Matteo Amerighi, Pier Carlo Nassini, Antonio Andreini, Stefano Orsino, Ishan Verma, Rakesh Yadav, Sunil Patil
Proc. ASME. GT2023, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A077, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102651
https://doi.org/10.1115/GT2023-102651
View Paper titled, Assessment of Flamelet Generated Manifold Approach With Inclusion of Stretch Effects of Pure Hydrogen Flames
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Topics: Flamelet generated manifold, Flames, Hydrogen, Chemistry, Engineering simulation, Gas turbines, Simulation, Temperature, Aircraft engines, Aviation
Journal Articles

Solution-Based Mesh Adaption Criteria Development for Accelerating Flame Tracking Simulations

Sourabh Shrivastava, Ishan Verma, Rakesh Yadav, Pravin Nakod
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2023, 145(5): 051005.
Paper No: GTP-22-1407
https://doi.org/10.1115/1.4055751
Published Online: December 20, 2022
View Article titled, Solution-Based Mesh Adaption Criteria Development for Accelerating Flame Tracking Simulations
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Topics: Flames, Flow (Dynamics), Fuels, Simulation, Sprays, Combustion, Temperature, Ignition
Proceedings Papers

Prediction of Thermoacoustic Instability and Fluid-Structure Interactions for Gas Turbine Combustor

Yu Xia, Patrick Sharkey, Ishan Verma, Alok Khaware, Davor Cokljat
Proc. ASME. GT2022, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A003, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-78296
https://doi.org/10.1115/GT2022-78296
View Paper titled, Prediction of Thermoacoustic Instability and Fluid-Structure Interactions for Gas Turbine Combustor
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Topics: Combustion chambers, Fluid structure interaction, Gas turbines, Flow (Dynamics), Oscillations, Deformation, Turbulence, Combustion, Computational fluid dynamics, Design
Proceedings Papers

Modeling of Flashback With Different Blends of CH4 and H2 by Using Finite Rate Chemistry With Large Eddy Simulation

Ishan Verma, Rakesh Yadav, Naseem Ansari, Stefano Orsino, Shaoping Li, Pravin Nakod
Proc. ASME. GT2022, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A026, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82601
https://doi.org/10.1115/GT2022-82601
View Paper titled, Modeling of Flashback With Different Blends of CH4 and H2 by Using Finite Rate Chemistry With Large Eddy Simulation
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Topics: Chemistry, Combustion, Hydrogen, Large eddy simulation, Methane, Modeling, Combustion chambers, Engineering simulation, Simulation, Boundary layers
Proceedings Papers

Solution-Based Mesh Adaption Criteria Development for Accelerating Flame Tracking Simulations

Sourabh Shrivastava, Ishan Verma, Rakesh Yadav, Pravin Nakod
Proc. ASME. GT2022, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A027, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82620
https://doi.org/10.1115/GT2022-82620
View Paper titled, Solution-Based Mesh Adaption Criteria Development for Accelerating Flame Tracking Simulations
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Topics: Flames, Simulation
Proceedings Papers

Turbulent Combustion Modeling of Swirl Stabilized Blended CH 4 /H 2 Flames by Using Flamelet Generated Manifold

Ishan Verma, Rakesh Yadav, Sourabh Shrivastava, Pravin Nakod
Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T03A012, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-82583
https://doi.org/10.1115/GT2022-82583
View Paper titled, Turbulent Combustion Modeling of Swirl Stabilized Blended CH 4 /H 2 Flames by Using Flamelet Generated Manifold
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Topics: Combustion, Flamelet generated manifold, Flames, Methane, Modeling, Turbulence
Proceedings Papers

Numerical Simulations of a Lifted Hydrogen Jet Flame Using Flamelet Generated Manifold Approach

Yu Xia, Ishan Verma, Pravin Nakod, Rakesh Yadav, Stefano Orsino, Shaoping Li
Proc. ASME. GT2022, Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine, V002T03A004, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-80733
https://doi.org/10.1115/GT2022-80733
View Paper titled, Numerical Simulations of a Lifted Hydrogen Jet Flame Using Flamelet Generated Manifold Approach
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Topics: Computer simulation, Flamelet generated manifold, Flames, Hydrogen, Flow (Dynamics), Temperature, Combustion, Engineering simulation, Fuels, Simulation
Journal Articles

Numerical Simulations of a Lifted Hydrogen Jet Flame Using Flamelet Generated Manifold Approach

Yu Xia, Ishan Verma, Pravin Nakod, Rakesh Yadav, Stefano Orsino, Shaoping Li
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. September 2022, 144(9): 091009.
Paper No: GTP-22-1238
https://doi.org/10.1115/1.4055104
Published Online: August 16, 2022
View Article titled, Numerical Simulations of a Lifted Hydrogen Jet Flame Using Flamelet Generated Manifold Approach
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Topics: Flamelet generated manifold, Flames, Fuels, Simulation, Temperature, Combustion, Flow (Dynamics), Turbulence
Journal Articles

Prediction of Thermoacoustic Instability and Fluid–Structure Interactions for Gas Turbine Combustor

Yu Xia, Patrick Sharkey, Ishan Verma, Alok Khaware, Davor Cokljat
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. September 2022, 144(9): 091005.
Paper No: GTP-22-1237
https://doi.org/10.1115/1.4055015
Published Online: July 28, 2022
View Article titled, Prediction of Thermoacoustic Instability and Fluid–Structure Interactions for Gas Turbine Combustor
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Topics: Displacement, Fluid structure interaction, Pressure, Oscillations, Limit cycles, Combustion chambers, Deformation, Flow (Dynamics), Flames, Fluids
Proceedings Papers

Dynamic Mesh Adaption for Scale-Resolving Reacting Flow Simulations

Yu Xia, Phil Stopford, Patrick Sharkey, Ishan Verma
Proc. ASME. GT2021, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A038, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59100
https://doi.org/10.1115/GT2021-59100
View Paper titled, Dynamic Mesh Adaption for Scale-Resolving Reacting Flow Simulations
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Topics: Combustion, Diffusion (Physics), Eddies (Fluid dynamics), Ejectors, Flamelet generated manifold, Flames, Flow simulation, Resolution (Optics), Simulation, Stress
Proceedings Papers

Comparison of Performance of Flamelet Generated Manifold Model With That of Finite Rate Combustion Model for Hydrogen Blended Flames

Sourabh Shrivastava, Ishan Verma, Rakesh Yadav, Pravin Nakod, Stefano Orsino
Proc. ASME. GT2021, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A040, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-60232
https://doi.org/10.1115/GT2021-60232
View Paper titled, Comparison of Performance of Flamelet Generated Manifold Model With That of Finite Rate Combustion Model for Hydrogen Blended Flames
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Topics: Combustion, Flamelet generated manifold, Flames, Hydrogen
Proceedings Papers

Modeling of Combustor-Turbine Vane Interaction Using Stress-Blended Eddy Simulation

Ishan Verma, Samir Rida, Laith Zori, Jaydeep Basani, Benjamin Kamrath, Dustin Brandt
Proc. ASME. GT2021, Volume 2D: Turbomachinery — Multidisciplinary Design Approaches, Optimization, and Uncertainty Quantification; Radial Turbomachinery Aerodynamics; Unsteady Flows in Turbomachinery, V02DT39A008, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-59344
https://doi.org/10.1115/GT2021-59344
View Paper titled, Modeling of Combustor-Turbine Vane Interaction Using Stress-Blended Eddy Simulation
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Topics: Combustion chambers, Eddies (Fluid dynamics), Modeling, Simulation, Stress, Turbines, Stators, Flow (Dynamics), Boundary-value problems, Computational fluid dynamics
Proceedings Papers

A Fully Non-Adiabatic Flamelet Generated Manifold Model for High Fidelity Modeling of Turbulent Combustion in Gas Turbine Like Conditions

Rakesh Yadav, Ishan Verma, Abhijit Modak, Shaoping Li
Proc. ASME. GT2020, Volume 4B: Combustion, Fuels, and Emissions, V04BT04A026, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15814
https://doi.org/10.1115/GT2020-15814
View Paper titled, A Fully Non-Adiabatic Flamelet Generated Manifold Model for High Fidelity Modeling of Turbulent Combustion in Gas Turbine Like Conditions
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Topics: Combustion, Flamelet generated manifold, Gas turbines, Modeling, Turbulence, Flames, Temperature, Combustion chambers, Manifolds, Density
Proceedings Papers

SBES/FGM Simulation of Film-Cooled Surface Heat Transfer and Near-Wall Reaction

Yu Xia, Patrick Sharkey, Stefano Orsino, Mike Kuron, Florian Menter, Ishan Verma, Robert Malecki, Baris Sen
Proc. ASME. GT2020, Volume 7B: Heat Transfer, V07BT12A025, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-14717
https://doi.org/10.1115/GT2020-14717
View Paper titled, SBES/FGM Simulation of Film-Cooled Surface Heat Transfer and Near-Wall Reaction
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Topics: Flamelet generated manifold, Heat transfer, Simulation, Cooling, Heat flux, Flow (Dynamics), Aircraft engines, Turbulence, Blades, Combustion
Journal Articles

Stress-Blended Eddy Simulation/Flamelet Generated Manifold Simulation of Film-Cooled Surface Heat Transfer and Near-Wall Reaction

Yu Xia, Patrick Sharkey, Stefano Orsino, Mike Kuron, Florian Menter, Ishan Verma, Robert Malecki, Baris Sen
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. January 2021, 143(1): 011008.
Paper No: TURBO-20-1204
https://doi.org/10.1115/1.4049133
Published Online: December 29, 2020
View Article titled, Stress-Blended Eddy Simulation/Flamelet Generated Manifold Simulation of Film-Cooled Surface Heat Transfer and Near-Wall Reaction
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Topics: Cooling, Heat flux, Simulation, Flamelet generated manifold, Heat transfer, Flat plates, Stress, Eddies (Fluid dynamics), Computational fluid dynamics
Proceedings Papers

Modeling Combustion in a Rearward-Facing Step Using a Hybrid RANS/LES Method

Ishan Verma, Rakesh Yadav, Pravin Nakod, Patrick Sharkey, Shaoping Li, Ellen Meeks
Proc. ASME. GTINDIA2019, Volume 2: Combustion, Fuels, and Emissions; Renewable Energy: Solar and Wind; Inlets and Exhausts; Emerging Technologies: Hybrid Electric Propulsion and Alternate Power Generation; GT Operation and Maintenance; Materials and Manufacturing (Including Coatings, Composites, CMCs, Additive Manufacturing); Analytics and Digital Solutions for Gas Turbines/Rotating Machinery, V002T04A012, December 5–6, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GTINDIA2019-2522
https://doi.org/10.1115/GTINDIA2019-2522
View Paper titled, Modeling Combustion in a Rearward-Facing Step Using a Hybrid RANS/LES Method
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Topics: Combustion, Flamelet generated manifold, Modeling, Reynolds-averaged Navier–Stokes equations
Proceedings Papers

Flamelet Generated Manifold Simulation of Turbulent Non-Premixed Bluff Body Flames

Ishan Verma, Rakesh Yadav, Pravin Nakod, Patrick Sharkey, Shaoping Li, Ellen Meeks
Proc. ASME. GTINDIA2019, Volume 2: Combustion, Fuels, and Emissions; Renewable Energy: Solar and Wind; Inlets and Exhausts; Emerging Technologies: Hybrid Electric Propulsion and Alternate Power Generation; GT Operation and Maintenance; Materials and Manufacturing (Including Coatings, Composites, CMCs, Additive Manufacturing); Analytics and Digital Solutions for Gas Turbines/Rotating Machinery, V002T04A013, December 5–6, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GTINDIA2019-2525
https://doi.org/10.1115/GTINDIA2019-2525
View Paper titled, Flamelet Generated Manifold Simulation of Turbulent Non-Premixed Bluff Body Flames
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Topics: Flamelet generated manifold, Flames, Reynolds-averaged Navier–Stokes equations, Simulation, Turbulence