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Proceedings Papers

Learning RANS Model Parameters From LES Using Bayesian Inference

Santosh Hemchandra, Anindya Datta, Matthew P. Juniper
Proc. ASME. GT2023, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A051, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102159
https://doi.org/10.1115/GT2023-102159
View Paper titled, Learning RANS Model Parameters From LES Using Bayesian Inference
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Topics: Reynolds-averaged Navier–Stokes equations, Flow (Dynamics), Design, Turbulence, Combustion, Eddies (Fluid dynamics), Energy dissipation, Engineering design, Engineering simulation, Flames
Proceedings Papers

Precessing Vortex Core Suppression in a Swirl Stabilized Combustor With Hydrogen Addition

Saarthak Gupta, Anindya Datta, Santosh Hemchandra, Isaac Boxx
Proc. ASME. GT2023, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A002, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-100617
https://doi.org/10.1115/GT2023-100617
View Paper titled, Precessing Vortex Core Suppression in a Swirl Stabilized Combustor With Hydrogen Addition
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Topics: Combustion chambers, Hydrogen, Vortices, Flames, Flow (Dynamics), Fuels, Oscillations, Dynamics (Mechanics), Methane, Stability
Proceedings Papers

Hysteresis and Bi-Stability in Transversely Excited Swirling Flows

Ravi Gupta, Rajat Gohiya, Chandan Vempati, Santosh Hemchandra, Pratikash Panda
Proc. ASME. GT2022, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A025, June 13–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: GT2022-80771
https://doi.org/10.1115/GT2022-80771
View Paper titled, Hysteresis and Bi-Stability in Transversely Excited Swirling Flows
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Topics: Acoustics, Stability, Swirling flow
Journal Articles

Hysteresis and Bistability in Transversely Excited Swirling Flows

Ravi Gupta, Rajat Gohiya, Chandan Vempati, Santosh Hemchandra, Pratikash Panda
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2023, 145(1): 011022.
Paper No: GTP-22-1392
https://doi.org/10.1115/1.4055669
Published Online: October 21, 2022
View Article titled, Hysteresis and Bistability in Transversely Excited Swirling Flows
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Topics: Acoustics, Ejectors, Flow (Dynamics), Swirling flow, Combustion chambers, Excitation, Pressure
Journal Articles

Impact of a Centerbody on the Unsteady Flow Dynamics of a Swirl Nozzle: Intermittency of Precessing Vortex Core Oscillations

Saarthak Gupta, Santosh Shanbhogue, Masayasu Shimura, Ahmed Ghoniem, Santosh Hemchandra
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2022, 144(2): 021014.
Paper No: GTP-21-1399
https://doi.org/10.1115/1.4052144
Published Online: November 8, 2021
View Article titled, Impact of a Centerbody on the Unsteady Flow Dynamics of a Swirl Nozzle: Intermittency of Precessing Vortex Core Oscillations
Open the PDF for Impact of a Centerbody on the Unsteady Flow Dynamics of a Swirl Nozzle: Intermittency of Precessing Vortex Core Oscillations in another window
Topics: Flow (Dynamics), Oscillations, Principal component analysis, Wavelets, Nozzles, Vortices, Dynamics (Mechanics), Combustion chambers
Journal Articles

Impact of Hydrogen Addition on the Thermoacoustic Instability and Precessing Vortex Core Dynamics in a CH 4 /H 2 /Air Technically Premixed Combustor

Anindya Datta, Saarthak Gupta, Ianko Chterev, Isaac Boxx, Santosh Hemchandra
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2022, 144(2): 021013.
Paper No: GTP-21-1391
https://doi.org/10.1115/1.4052202
Published Online: November 8, 2021
View Article titled, Impact of Hydrogen Addition on the Thermoacoustic Instability and Precessing Vortex Core Dynamics in a CH 4 /H 2 /Air Technically Premixed Combustor
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Topics: Combustion chambers, Flames, Flow (Dynamics), Fuels, Methane, Oscillations, Vortices, Wavelets, Dynamics (Mechanics), Nozzles
Proceedings Papers

Impact of Hydrogen Addition on the Thermoacoustic Instability and Precessing Vortex Core Dynamics in a CH 4 /H 2 /air Technically Premixed Combustor

Anindya Datta, Saarthak Gupta, Santosh Hemchandra, Ianko Chterev, Isaac Boxx
Proc. ASME. GT2021, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A018, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-58794
https://doi.org/10.1115/GT2021-58794
View Paper titled, Impact of Hydrogen Addition on the Thermoacoustic Instability and Precessing Vortex Core Dynamics in a CH 4 /H 2 /air Technically Premixed Combustor
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Topics: Combustion chambers, Dynamics (Mechanics), Hydrogen, Methane, Vortices, Oscillations, Flames, Flow (Dynamics), Fuels, Nozzles
Proceedings Papers

Impact of a Centrebody on the Unsteady Flow Dynamics of A Swirl Nozzle: Intermittency of PVC Oscillations

Saarthak Gupta, Santosh Hemchandra, Masayasu Shimura, Santosh Shanbhogue, Ahmed Ghoniem
Proc. ASME. GT2021, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A003, June 7–11, 2021
Publisher: American Society of Mechanical Engineers
Paper No: GT2021-58358
https://doi.org/10.1115/GT2021-58358
View Paper titled, Impact of a Centrebody on the Unsteady Flow Dynamics of A Swirl Nozzle: Intermittency of PVC Oscillations
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Topics: Dynamics (Mechanics), Nozzles, Oscillations, Unsteady flow, Flow (Dynamics), Vortices, Bubbles, Combustion chambers, Turbulence, Emissions
Journal Articles

The Role of the Centerbody Wake on the Precessing Vortex Core Dynamics of a Swirl Nozzle

Arnab Mukherjee, Nishanth Muthichur, Chaitali More, Saarthak Gupta, Santosh Hemchandra
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. May 2021, 143(5): 051019.
Paper No: GTP-20-1634
https://doi.org/10.1115/1.4050155
Published Online: March 15, 2021
View Article titled, The Role of the Centerbody Wake on the Precessing Vortex Core Dynamics of a Swirl Nozzle
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Topics: Flow (Dynamics), Nozzles, Stability, Vortices, Wakes, Combustion chambers
Proceedings Papers

The Role of the Centerbody Wake on the Precessing Vortex Core Dynamics of a Swirl Nozzle

Arnab Mukherjee, Nishanth Muthichur, Chaitali More, Saarthak Gupta, Santosh Hemchandra
Proc. ASME. GT2020, Volume 4B: Combustion, Fuels, and Emissions, V04BT04A025, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15777
https://doi.org/10.1115/GT2020-15777
View Paper titled, The Role of the Centerbody Wake on the Precessing Vortex Core Dynamics of a Swirl Nozzle
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Topics: Dynamics (Mechanics), Nozzles, Vortices, Wakes, Flow (Dynamics), Bubbles, Combustion chambers, Hydrodynamic stability, Jets, Large eddy simulation
Journal Articles

Effects of Fuel Staging on the Hydrodynamic Stability of Multinozzle Swirl Flows

Saarthak Gupta, Kiran Manoharan, Santosh Hemchandra
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. October 2020, 142(10): 101010.
Paper No: GTP-19-1450
https://doi.org/10.1115/1.4045017
Published Online: September 29, 2020
View Article titled, Effects of Fuel Staging on the Hydrodynamic Stability of Multinozzle Swirl Flows
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Topics: Flow (Dynamics), Fuels, Nozzles, Density, Hydrodynamic stability, Oscillations, Combustion chambers
Proceedings Papers

Effects of Fuel Staging on the Hydrodynamic Stability of Multi Nozzle Swirl Flows

Saarthak Gupta, Kiran Manoharan, Santosh Hemchandra
Proc. ASME. GT2019, Volume 4B: Combustion, Fuels, and Emissions, V04BT04A012, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-91152
https://doi.org/10.1115/GT2019-91152
View Paper titled, Effects of Fuel Staging on the Hydrodynamic Stability of Multi Nozzle Swirl Flows
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Topics: Flow (Dynamics), Fuels, Hydrodynamic stability, Nozzles, Oscillations, Combustion chambers, Heat, Acoustics, Combustion, Density
Journal Articles

Influence of Nonaxisymmetric Confinement on the Hydrodynamic Stability of Multinozzle Swirl Flows

Harish G. Subramanian, Kiran Manoharan, Santosh Hemchandra
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. February 2019, 141(2): 021016.
Paper No: GTP-18-1410
https://doi.org/10.1115/1.4041080
Published Online: October 4, 2018
View Article titled, Influence of Nonaxisymmetric Confinement on the Hydrodynamic Stability of Multinozzle Swirl Flows
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Topics: Flow (Dynamics), Nozzles, Combustion chambers, Density, Hydrodynamic stability
Proceedings Papers

Influence of Non-Axisymmetric Confinement on the Hydrodynamic Stability of Multi-Nozzle Swirl Flows

Harish G. Subramanian, Kiran Manoharan, Santosh Hemchandra
Proc. ASME. GT2018, Volume 4B: Combustion, Fuels, and Emissions, V04BT04A019, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-76368
https://doi.org/10.1115/GT2018-76368
View Paper titled, Influence of Non-Axisymmetric Confinement on the Hydrodynamic Stability of Multi-Nozzle Swirl Flows
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Topics: Flow (Dynamics), Hydrodynamic stability, Nozzles, Combustion chambers, Flames, Oscillations, Stability, Acoustics, Density, Dynamics (Mechanics)
Journal Articles

Impact of Precessing Vortex Core Dynamics on Shear Layer Response in a Swirling Jet

Mark Frederick, Kiran Manoharan, Joshua Dudash, Brian Brubaker, Santosh Hemchandra, Jacqueline O'Connor
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. June 2018, 140(6): 061503.
Paper No: GTP-17-1429
https://doi.org/10.1115/1.4038324
Published Online: January 17, 2018
View Article titled, Impact of Precessing Vortex Core Dynamics on Shear Layer Response in a Swirling Jet
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Topics: Acoustics, Flow (Dynamics), Shear (Mechanics), Dynamics (Mechanics), Swirling flow, Vortices, Oscillations
Proceedings Papers

Impact of PVC Dynamics on Shear Layer Response in a Swirling Jet

Mark Frederick, Joshua Dudash, Jacqueline O’Connor, Kiran Manoharan, Santosh Hemchandra, Brian Brubaker
Proc. ASME. GT2017, Volume 4B: Combustion, Fuels and Emissions, V04BT04A036, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-64691
https://doi.org/10.1115/GT2017-64691
View Paper titled, Impact of PVC Dynamics on Shear Layer Response in a Swirling Jet
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Topics: Dynamics (Mechanics), Shear (Mechanics), Swirling flow, Acoustics, Combustion, Combustion chambers, Oscillations, Flames, Stability, Flow (Dynamics)
Proceedings Papers

Velocity Field Response of a Forced Swirl Stabilized Premixed Flame

Kiran Manoharan, Travis Smith, Benjamin Emerson, Christopher M. Douglas, Tim Lieuwen, Santosh Hemchandra
Proc. ASME. GT2017, Volume 4A: Combustion, Fuels and Emissions, V04AT04A057, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-63936
https://doi.org/10.1115/GT2017-63936
View Paper titled, Velocity Field Response of a Forced Swirl Stabilized Premixed Flame
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Topics: Flames, Flow (Dynamics), Oscillations, Combustion chambers, Acoustics, Heat, Shear (Mechanics), Gas turbines, Jets, Methane
Proceedings Papers

Role of Shear Layer Instability in Driving Pressure Oscillations in a Backward Facing Step Combustor

Srinivas K. Kirthy, Santosh Hemchandra, Seunghyuck Hong, Santosh Shanbhogue, Ahmed F. Ghoniem
Proc. ASME. GT2016, Volume 4B: Combustion, Fuels and Emissions, V04BT04A010, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-57322
https://doi.org/10.1115/GT2016-57322
View Paper titled, Role of Shear Layer Instability in Driving Pressure Oscillations in a Backward Facing Step Combustor
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Topics: Combustion chambers, Oscillations, Pressure, Shear (Mechanics), Flow (Dynamics), Combustion, Acoustics, Density, Hydrodynamic stability, Sound pressure
Proceedings Papers

Impact of Flow Non-Axisymmetry on Swirling Flow Dynamics and Receptivity to Acoustics

Samuel Hansford, Jacqueline O’Connor, Kiran Manoharan, Santosh Hemchandra
Proc. ASME. GT2015, Volume 4B: Combustion, Fuels and Emissions, V04BT04A025, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-43377
https://doi.org/10.1115/GT2015-43377
View Paper titled, Impact of Flow Non-Axisymmetry on Swirling Flow Dynamics and Receptivity to Acoustics
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Topics: Acoustics, Dynamics (Mechanics), Flow (Dynamics), Swirling flow, Stability, Vortices, Combustion, Excitation, Flames, Flow measurement
Proceedings Papers

Instability Mechanism in a Swirl Flow Combustor: Precession of Vortex Core and Influence of Density Gradient

Kiran Manoharan, Samuel Hansford, Jacqueline O’ Connor, Santosh Hemchandra
Proc. ASME. GT2015, Volume 4A: Combustion, Fuels and Emissions, V04AT04A073, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-42985
https://doi.org/10.1115/GT2015-42985
View Paper titled, Instability Mechanism in a Swirl Flow Combustor: Precession of Vortex Core and Influence of Density Gradient
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Topics: Combustion chambers, Density, Flow (Dynamics), Vortices, Gas turbines, Combustion, Flames, Shear (Mechanics), Fuels, Hydrodynamic stability