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Proceedings Papers

Development of a Laser Igniter for Direct Fired sCO2 Combustor

Sreenath Gupta, Shashikant Aithal, Ashvin Hosangadi, Timothy Weathers, Jeremy Fetvedt
Proc. ASME. GT2022, Volume 9: Supercritical CO2, V009T28A014, June 13–17, 2022
Paper No: GT2022-82220
https://doi.org/10.1115/GT2022-82220
View Paper titled, Development of a Laser Igniter for Direct Fired sCO2 Combustor
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Topics: Combustion chambers, Ignition, Lasers
Proceedings Papers

Numerical Predictions of Mean Performance and Dynamic Behavior of a 10 MWe sCO2 Compressor with Test Data Validation

Ashvin Hosangadi, Tim Weathers, Zisen Liu, Robert Pelton, Karl Wygant, Jason Wilkes
Proc. ASME. GT2022, Volume 9: Supercritical CO2, V009T28A009, June 13–17, 2022
Paper No: GT2022-82017
https://doi.org/10.1115/GT2022-82017
View Paper titled, Numerical Predictions of Mean Performance and Dynamic Behavior of a 10 MWe sCO2 Compressor with Test Data Validation
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Topics: Carbon dioxide, Compressors, Condensation, Fluids, Surges
Journal Articles

Numerical Predictions of Mean Performance and Dynamic Behavior of a 10 MWe SCO 2 Compressor With Test Data Validation

Ashvin Hosangadi, Timothy Weathers, Jason Liu, Rob Pelton, Karl Wygant, Jason Wilkes
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. December 2022, 144(12): 121019.
Paper No: GTP-22-1347
https://doi.org/10.1115/1.4055532
Published Online: October 14, 2022
View Article titled, Numerical Predictions of Mean Performance and Dynamic Behavior of a 10 MWe SCO 2 Compressor With Test Data Validation
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Topics: Compressors, Design, Flow (Dynamics), Fluids, Simulation, Temperature, Engineering simulation, Pressure, Impellers, Condensation
Proceedings Papers

Measurements of Density and Sound Speed in Mixtures Relevant to sCO 2 Power Cycles

Suhyeon Park, Justin Urso, K. R. V. (Raghu) Manikantachari, Ashvin Hosangadi, Andrea Zambon, Subith S. Vasu
Proc. ASME. GT2020, Volume 11: Structures and Dynamics: Structural Mechanics, Vibration, and Damping; Supercritical CO2, V011T31A003, September 21–25, 2020
Paper No: GT2020-14335
https://doi.org/10.1115/GT2020-14335
View Paper titled, Measurements of Density and Sound Speed in Mixtures Relevant to sCO 2 Power Cycles
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Topics: Density, Supercritical carbon dioxide, Thermodynamic power cycles
Proceedings Papers

A High-Fidelity Modeling Tool to Support the Design of Oxy-Combustors for Direct-Fired sCO 2 Cycles

Andrea C. Zambon, Ashvin Hosangadi, Tim Weathers, Mark Winquist, Jeff Mays, Shinjiro Miyata, Ganesan Subbaraman
Proc. ASME. GT2020, Volume 11: Structures and Dynamics: Structural Mechanics, Vibration, and Damping; Supercritical CO2, V011T31A004, September 21–25, 2020
Paper No: GT2020-14406
https://doi.org/10.1115/GT2020-14406
View Paper titled, A High-Fidelity Modeling Tool to Support the Design of Oxy-Combustors for Direct-Fired sCO 2 Cycles
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Topics: Chemistry, Combustion chambers, Computational fluid dynamics, Cycles, Design, Fluids, Modeling, Nitrogen oxides, Supercritical carbon dioxide, Ejectors
Proceedings Papers

Capturing the Effects of NO x and SO x Impurities on Oxy-Combustion Under Supercritical CO 2 Conditions for Coal-Derived Syngas and Natural Gas Mixtures

Ramees K. Rahman, Samuel Barak, K. R. V. (Raghu) Manikantachari, Erik Ninnemann, Ashvin Hosangadi, Andrea Zambon, Subith S. Vasu
Proc. ASME. GT2020, Volume 3: Ceramics; Coal, Biomass, Hydrogen, and Alternative Fuels, V003T03A004, September 21–25, 2020
Paper No: GT2020-14337
https://doi.org/10.1115/GT2020-14337
View Paper titled, Capturing the Effects of NO x and SO x Impurities on Oxy-Combustion Under Supercritical CO 2 Conditions for Coal-Derived Syngas and Natural Gas Mixtures
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Topics: Coal, Combustion, Natural gas, Nitrogen oxides, Supercritical carbon dioxide, Syngas, Combustion chambers, High pressure (Physics), Methane, Carbon dioxide
Journal Articles

A High-Fidelity Modeling Tool to Support the Design of Oxy-Combustors for Direct-Fired Supercritical CO 2 Cycles

Andrea C. Zambon, Ashvin Hosangadi, Tim Weathers, Mark Winquist, Jeff Mays, Shinjiro Miyata, Ganesan Subbaraman
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
Publisher: ASME
J. Eng. Gas Turbines Power. January 2021, 143(1): 011016.
Paper No: GTP-20-1538
https://doi.org/10.1115/1.4049350
Published Online: January 4, 2021
View Article titled, A High-Fidelity Modeling Tool to Support the Design of Oxy-Combustors for Direct-Fired Supercritical CO 2 Cycles
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Topics: Carbon dioxide, Chemistry, Combustion chambers, Computational fluid dynamics, Design, Diluents, Flames, Fuels, Modeling, Nitrogen oxides
Journal Articles

Probing the Effects of NO x and SO x Impurities on Oxy-Fuel Combustion in Supercritical CO 2 : Shock Tube Experiments and Chemical Kinetic Modeling

Ramees K. Rahman, Samuel Barak, K.R.V. (Raghu) Manikantachari, Erik Ninnemann, Ashvin Hosangadi, Andrea Zambon, Subith S. Vasu
Journal: Journal of Energy Resources Technology
Article Type: Research Papers
Publisher: ASME
J. Energy Resour. Technol. December 2020, 142(12): 122302.
Paper No: JERT-20-1282
https://doi.org/10.1115/1.4047314
Published Online: June 12, 2020
View Article titled, Probing the Effects of NO x and SO x Impurities on Oxy-Fuel Combustion in Supercritical CO 2 : Shock Tube Experiments and Chemical Kinetic Modeling
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Topics: Chemistry, Combustion, High pressure (Physics), Ignition delay, Methane, Nitrogen oxides, Oxidation, Shock tubes, Supercritical carbon dioxide, Modeling
Journal Articles

Measurements of Density and Sound Speed in Mixtures Relevant to Supercritical CO 2 Cycles

Suhyeon Park, Justin Urso, K.R.V. (Raghu) Manikantachari, Ashvin Hosangadi, Andrea Zambon, Subith S. Vasu
Journal: Journal of Energy Resources Technology
Article Type: Research Papers
Publisher: ASME
J. Energy Resour. Technol. October 2020, 142(10): 102105.
Paper No: JERT-20-1264
https://doi.org/10.1115/1.4047081
Published Online: May 26, 2020
View Article titled, Measurements of Density and Sound Speed in Mixtures Relevant to Supercritical CO 2 Cycles
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Topics: Carbon dioxide, Density, Supercritical carbon dioxide, Temperature, Pressure, Cycles, Combustion, Methane
Proceedings Papers

Effect of Diffuser Vane Solidity on Performance of a Multistage Bowl Pump

Paul Cooper, Ashvin Hosangadi
Proc. ASME. AJKFluids2019, Volume 3B: Fluid Applications and Systems, V03BT03A048, July 28–August 1, 2019
Paper No: AJKFluids2019-5633
https://doi.org/10.1115/AJKFluids2019-5633
View Paper titled, Effect of Diffuser Vane Solidity on Performance of a Multistage Bowl Pump
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Topics: Diffusers, Flow (Dynamics), Pumps
Proceedings Papers

Numerical Simulation of Non-Equilibrium Condensation in Supercritical CO 2 Compressors

Kevin W. Brinckman, Ashvin Hosangadi, Zisen Liu, Timothy Weathers
Proc. ASME. GT2019, Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, V009T38A010, June 17–21, 2019
Paper No: GT2019-90497
https://doi.org/10.1115/GT2019-90497
View Paper titled, Numerical Simulation of Non-Equilibrium Condensation in Supercritical CO 2 Compressors
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Topics: Compressors, Computer simulation, Condensation, Equilibrium (Physics), Supercritical carbon dioxide, Drops, Nucleation (Physics), Fluids, Carbon dioxide, Computational fluid dynamics
Journal Articles

Modeling Multiphase Effects in CO 2 Compressors at Subcritical Inlet Conditions

Ashvin Hosangadi, Zisen Liu, Timothy Weathers, Vineet Ahuja, Judy Busby
Journal: Journal of Engineering for Gas Turbines and Power
Article Type: Research-Article
J. Eng. Gas Turbines Power. August 2019, 141(8): 081005.
Paper No: GTP-18-1545
https://doi.org/10.1115/1.4042975
Published Online: March 18, 2019
View Article titled, Modeling Multiphase Effects in CO 2 Compressors at Subcritical Inlet Conditions
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Topics: Carbon dioxide, Compressors, Computational fluid dynamics, Condensation, Flow (Dynamics), Fluids, Impellers, Pressure, Temperature, Vapors
Proceedings Papers

CFD-Aided Hydraulic Development of a Steam Generator Feed Pump

Paul Cooper, Bruno Schiavello, Ashvin Hosangadi, James T. McGuire
Proc. ASME. AJKFluids2015, Volume 1: Symposia, V001T33A010, July 26–31, 2015
Paper No: AJKFluids2015-33419
https://doi.org/10.1115/AJKFluids2015-33419
View Paper titled, CFD-Aided Hydraulic Development of a Steam Generator Feed Pump
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Topics: Boilers, Computational fluid dynamics, Pumps, Flow (Dynamics), Diffusers, Design, Impellers, Pressure, Rotors, Emergencies
Journal Articles

Shape Optimization of a Multi-Element Foil Using an Evolutionary Algorithm

Yu-Tai Lee, Vineet Ahuja, Ashvin Hosangadi, Michael Ebert
Journal: Journal of Fluids Engineering
Article Type: Research Papers
J. Fluids Eng. May 2010, 132(5): 051401.
https://doi.org/10.1115/1.4001343
Published Online: April 28, 2010
View Article titled, Shape Optimization of a Multi-Element Foil Using an Evolutionary Algorithm
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Topics: Computational fluid dynamics, Design, Flow (Dynamics), Optimization, Shapes, Torque, Turbulence, Drag (Fluid dynamics), Simulation, Evolutionary algorithms
Proceedings Papers

Simulations of Cavitation in Orifice and Venturis

Vineet Ahuja, Ashvin Hosangadi
Proc. ASME. PVP2007, Volume 4: Fluid-Structure Interaction, 163-171, July 22–26, 2007
Paper No: PVP2007-26639
https://doi.org/10.1115/PVP2007-26639
View Paper titled, Simulations of Cavitation in Orifice and Venturis
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Topics: Cavitation, Engineering simulation, Simulation, Flow (Dynamics), Flow instability, Temperature effects, Venturi tubes, Blades, Cavities, Ducts
Proceedings Papers

Simulations of Valve Operation in High Pressure Facilities

Vineet Ahuja, Ashvin Hosangadi, Peter Cavallo, Jeremy Shipman
Proc. ASME. PVP2007, Volume 4: Fluid-Structure Interaction, 591-602, July 22–26, 2007
Paper No: PVP2007-26629
https://doi.org/10.1115/PVP2007-26629
View Paper titled, Simulations of Valve Operation in High Pressure Facilities
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Topics: Engineering simulation, High pressure (Physics), Simulation, Valves, Fluids, Test facilities, Accounting, Acoustics, Cavitation, Computational fluid dynamics
Proceedings Papers

Investigation of an Air Supply Centrifugal Fan for Air Cushion Vehicle: Impeller Design and Validation

Yu-Tai Lee, Vineet Ahuja, Ashvin Hosangadi, Michael E. Slipper, Lawrence P. Mulvihill, Roger Birkbeck, Roderick M. Coleman
Proc. ASME. GT2008, Volume 6: Turbomachinery, Parts A, B, and C, 2273-2285, June 9–13, 2008
Paper No: GT2008-50376
https://doi.org/10.1115/GT2008-50376
View Paper titled, Investigation of an Air Supply Centrifugal Fan for Air Cushion Vehicle: Impeller Design and Validation
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Topics: Design, Impellers, Vehicles, Computational fluid dynamics, Fans, Design methodology, Flow (Dynamics), Blades, Computational methods, Flow separation
Proceedings Papers

Shape Optimization of a Multi-Element Airfoil Using CFD

Yu-Tai Lee, Vineet Ahuja, Ashvin Hosangadi, Michael Ebert
Proc. ASME. FEDSM2007, Volume 1: Symposia, Parts A and B, 1823-1833, July 30–August 2, 2007
Paper No: FEDSM2007-37141
https://doi.org/10.1115/FEDSM2007-37141
View Paper titled, Shape Optimization of a Multi-Element Airfoil Using CFD
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Topics: Airfoils, Computational fluid dynamics, Shape optimization, Optimization, Shapes, Reynolds-averaged Navier–Stokes equations, Design, Flow (Dynamics), Hydrofoil, Actuators
Proceedings Papers

Generalized Numerical Framework for Cavitation in Inducers

Ashvin Hosangadi, Vineet Ahuja, Ronald J. Ungewitter
Proc. ASME. FEDSM2003, Volume 1: Fora, Parts A, B, C, and D, 1239-1249, July 6–10, 2003
Paper No: FEDSM2003-45408
https://doi.org/10.1115/FEDSM2003-45408
View Paper titled, Generalized Numerical Framework for Cavitation in Inducers
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Topics: Cavitation, Engineering simulation, Simulation, Pumps, Flow (Dynamics), Acoustics, Cavities, Geometry, NASA, Nitrogen
Proceedings Papers

Computational Analyses of Instabilities and Transients in Valve and Piping Systems

Vineet Ahuja, Ashvin Hosangadi
Proc. ASME. PVP2006-ICPVT-11, Volume 2: Computer Technology, 41-48, July 23–27, 2006
Paper No: PVP2006-ICPVT-11-93453
https://doi.org/10.1115/PVP2006-ICPVT-11-93453
View Paper titled, Computational Analyses of Instabilities and Transients in Valve and Piping Systems
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Topics: Piping systems, Transients (Dynamics), Valves, Cavitation, Engineering simulation, Flow (Dynamics), Pressure, Simulation, Engines, Failure