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Proceedings Papers

On the Structure of Turbulent Bubbly Gas-Liquid Flows

Ramendra P. Roy
Proc. ASME. IMECE97, Fluids Engineering, 105-118, November 16–21, 1997
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1997-0762
https://doi.org/10.1115/IMECE1997-0762
View Paper titled, On the Structure of Turbulent Bubbly Gas-Liquid Flows
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Topics: Flow (Dynamics), Turbulence, Vapors, Boiling, Bubbles, Refrigerants, Fluids, Lasers, Modeling, Nitrogen
Proceedings Papers

Some Aspects of Particle Agglomeration in Simulated Slurry Fuels

P. Roy Choudhury
Proc. ASME. IMECE97, Heat Transfer: Volume 2, 179-186, November 16–21, 1997
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1997-0880
https://doi.org/10.1115/IMECE1997-0880
View Paper titled, Some Aspects of Particle Agglomeration in Simulated Slurry Fuels
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Topics: Agglomeration (Materials), Fuels, Particulate matter, Slurries, Drops, Combustion, Flow (Dynamics), Electrons, Evaporation, Flames
Proceedings Papers

A Study of the Flow Field and Convective Heat Transfer in a Model Rotor-Stator Cavity

Ramendra P. Roy, Vivek Agarwal, Shankar Devasenathipathy, Junru He, Lars Meier, Yong W. Kim, Jeff Howe, Ko-Sun Ho
Proc. ASME. IMECE97, Heat Transfer: Volume 3, 97-107, November 16–21, 1997
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1997-0898
https://doi.org/10.1115/IMECE1997-0898
View Paper titled, A Study of the Flow Field and Convective Heat Transfer in a Model Rotor-Stator Cavity
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Topics: Cavities, Convection, Flow (Dynamics), Rotors, Stators, Disks, Computation, Cooling, Gas turbines, Pressure
Proceedings Papers

Measurement of the Thermal and Velocity Fields in the Liquid Phase of Turbulent Subcooled Bubbly Boiling Flow

R. P. Roy, S. Kang, J. A. Zarate
Proc. ASME. IMECE99, Heat Transfer: Volume 4, 317-324, November 14–19, 1999
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1999-1133
https://doi.org/10.1115/IMECE1999-1133
View Paper titled, Measurement of the Thermal and Velocity Fields in the Liquid Phase of Turbulent Subcooled Bubbly Boiling Flow
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Topics: Boiling, Flow (Dynamics), Subcooling, Turbulence, Wire, Temperature, Circuits, Dimensions, Fluids, Lasers
Proceedings Papers

Modeling and Simulation of Subcooled Turbulent Boiling Flow

J. A. Zarate, R. P. Roy, S. Kang, Andre Laporta
Proc. ASME. IMECE2000, Heat Transfer: Volume 4, 263-271, November 5–10, 2000
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2000-1531
https://doi.org/10.1115/IMECE2000-1531
View Paper titled, Modeling and Simulation of Subcooled Turbulent Boiling Flow
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Topics: Boiling, Flow (Dynamics), Modeling, Simulation, Subcooling, Turbulence, Heat flux, Approximation, Bubbles, Computer simulation
Proceedings Papers

Comparison of Radiation Models for a Turbulent Piloted Methane/Air Jet Flame: A Frozen-Field Study

Chloe David, Wenjun Ge, Somesh P. Roy, Michael F. Modest, Ramanan Sankaran
Proc. ASME. HT2021, ASME 2021 Heat Transfer Summer Conference, V001T10A002, June 16–18, 2021
Publisher: American Society of Mechanical Engineers
Paper No: HT2021-62417
https://doi.org/10.1115/HT2021-62417
View Paper titled, Comparison of Radiation Models for a Turbulent Piloted Methane/Air Jet Flame: A Frozen-Field Study
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Topics: Air jets, Flames, Methane, Radiation (Physics), Turbulence, Engineering simulation, Radiative heat transfer, Simulation, Combustion, Combustion chambers
Proceedings Papers

Hot Gas Ingestion Model Employing Flow Network With Axisymmetric Solvers

Yong W. Kim, Michael N. Okpara, Hans Hamm, Ramendra P. Roy, Hee-Koo Moon
Proc. ASME. GT2018, Volume 5B: Heat Transfer, V05BT15A034, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-77055
https://doi.org/10.1115/GT2018-77055
View Paper titled, Hot Gas Ingestion Model Employing Flow Network With Axisymmetric Solvers
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Topics: Flow (Dynamics), Cavities, Disks, Discharge coefficient, Geometry, Pressure, Sealing (Process), Turbines, Carbon dioxide, Cavity flows
Proceedings Papers

Unsteady Pressure Characteristics in the Mainstream/Disc Cavity of a Turbine-Stage

A. V. Mirzamoghadam, J. Balasubramanian, M. Michael, R. P. Roy
Proc. ASME. GT2017, Volume 5B: Heat Transfer, V05BT15A015, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-63844
https://doi.org/10.1115/GT2017-63844
View Paper titled, Unsteady Pressure Characteristics in the Mainstream/Disc Cavity of a Turbine-Stage
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Topics: Cavities, Disks, Pressure, Turbines, Flow (Dynamics), Air flow, Pressure measurement, Annulus, Blades, Computational fluid dynamics
Proceedings Papers

Experiments on Front- and Aft- Disk Cavity Ingestion in a Subscale 1.5-Stage Axial Turbine

J. Balasubramanian, M. Michael, R. P. Roy, Y. W. Kim, H. K. Moon
Proc. ASME. GT2016, Volume 5A: Heat Transfer, V05AT15A002, June 13–17, 2016
Publisher: American Society of Mechanical Engineers
Paper No: GT2016-56214
https://doi.org/10.1115/GT2016-56214
View Paper titled, Experiments on Front- and Aft- Disk Cavity Ingestion in a Subscale 1.5-Stage Axial Turbine
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Topics: Cavities, Disks, Turbines, Pressure, Rotors, Air flow, Clearances (Engineering), Annulus, Carbon dioxide, Discharge coefficient
Journal Articles

Experimental Study of Ingestion in the Rotor–Stator Disk Cavity of a Subscale Axial Turbine Stage

J. Balasubramanian, P. S. Pathak, J. K. Thiagarajan, P. Singh, R. P. Roy, A. V. Mirzamoghadam
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research-Article
J. Turbomach. September 2015, 137(9): 091010.
Paper No: TURBO-15-1012
https://doi.org/10.1115/1.4030099
Published Online: September 1, 2015
View Article titled, Experimental Study of Ingestion in the Rotor–Stator Disk Cavity of a Subscale Axial Turbine Stage
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Topics: Annulus, Cavities, Discharge coefficient, Disks, Flow (Dynamics), Pressure, Sealing (Process), Stators, Turbines, Rotors
Journal Articles

Implementation of High-Order Spherical Harmonics Methods for Radiative Heat Transfer on openfoam

Wenjun Ge, Ricardo Marquez, Michael F. Modest, Somesh P. Roy
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. May 2015, 137(5): 052701.
Paper No: HT-14-1548
https://doi.org/10.1115/1.4029546
Published Online: May 1, 2015
View Article titled, Implementation of High-Order Spherical Harmonics Methods for Radiative Heat Transfer on openfoam
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Topics: Approximation, Boundary-value problems, Flames, Radiative heat transfer, Slabs, Computation, Radiation (Physics)
Proceedings Papers

A Study of the Flow Field in a Model Rotor-Stator Disk Cavity

R. P. Roy, S. Devasenathipathy, G. Xu, Y. Zhao
Proc. ASME. GT1999, Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration, V003T01A064, June 7–10, 1999
Publisher: American Society of Mechanical Engineers
Paper No: 99-GT-246
https://doi.org/10.1115/99-GT-246
View Paper titled, A Study of the Flow Field in a Model Rotor-Stator Disk Cavity
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Topics: Cavities, Disks, Flow (Dynamics), Rotors, Stators, Air flow, Pressure, Fluids, Rotation, Blades
Proceedings Papers

Experimental Study of Ingestion in the Rotor-Stator Disk Cavity of a Subscale Axial Turbine Stage

J. Balasubramanian, P. S. Pathak, J. K. Thiagarajan, P. Singh, R. P. Roy, A. V. Mirzamoghadam
Proc. ASME. GT2014, Volume 5C: Heat Transfer, V05CT16A011, June 16–20, 2014
Publisher: American Society of Mechanical Engineers
Paper No: GT2014-25487
https://doi.org/10.1115/GT2014-25487
View Paper titled, Experimental Study of Ingestion in the Rotor-Stator Disk Cavity of a Subscale Axial Turbine Stage
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Topics: Cavities, Disks, Rotors, Stators, Turbines, Discharge coefficient, Flow (Dynamics), Annulus, Pressure, Clearances (Engineering)
Proceedings Papers

Flow and Heat Transfer at the Hub Endwall of Inlet Vane Passages — Experiments and Simulations

R. P. Roy, K. D. Squires, M. Gerendas, S. Song, W. J. Howe, A. Ansari
Proc. ASME. GT2000, Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration, V003T01A006, May 8–11, 2000
Publisher: American Society of Mechanical Engineers
Paper No: 2000-GT-0198
https://doi.org/10.1115/2000-GT-0198
View Paper titled, Flow and Heat Transfer at the Hub Endwall of Inlet Vane Passages — Experiments and Simulations
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Topics: Engineering simulation, Flow (Dynamics), Heat transfer, Simulation, Turbulence, Cascades (Fluid dynamics), Computer simulation, Heat flux, Liquid crystals, Momentum
Proceedings Papers

Pressure Field and Main-Stream Gas Ingestion in a Rotor-Stator Disk Cavity

R. P. Roy, G. Xu, J. Feng, S. Kang
Proc. ASME. GT2001, Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration, V003T01A089, June 4–7, 2001
Publisher: American Society of Mechanical Engineers
Paper No: 2001-GT-0564
https://doi.org/10.1115/2001-GT-0564
View Paper titled, Pressure Field and Main-Stream Gas Ingestion in a Rotor-Stator Disk Cavity
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Topics: Cavities, Disks, Pressure, Rotors, Stators, Engineering simulation, Simulation, Computational fluid dynamics, Blades
Proceedings Papers

Experiments on Aft-Disk Cavity Ingestion in a Model 1.5-Stage Axial-Flow Turbine

J. Balasubramanian, N. Junnarkar, D. W. Zhou, R. P. Roy, Y. W. Kim, H. K. Moon
Proc. ASME. GT2011, Volume 5: Heat Transfer, Parts A and B, 871-881, June 6–10, 2011
Publisher: American Society of Mechanical Engineers
Paper No: GT2011-45895
https://doi.org/10.1115/GT2011-45895
View Paper titled, Experiments on Aft-Disk Cavity Ingestion in a Model 1.5-Stage Axial-Flow Turbine
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Topics: Axial flow, Cavities, Disks, Turbines, Air flow, Rotors, Trajectories (Physics), Blades, Clearances (Engineering), Fluids
Journal Articles

Computational Model of a Hybrid Pressurized Solid Oxide Fuel Cell Generator/Gas Turbine Power Plant

Adrian Dumitrescu, T. W. Lee, R. P. Roy
Journal: Journal of Energy Resources Technology
Publisher: ASME
Article Type: Research Papers
J. Energy Resour. Technol. March 2011, 133(1): 012602.
https://doi.org/10.1115/1.4003707
Published Online: March 29, 2011
View Article titled, Computational Model of a Hybrid Pressurized Solid Oxide Fuel Cell Generator/Gas Turbine Power Plant
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Topics: Gas turbines, Generators, Hybrid power systems, Simulation, Solid oxide fuel cells, Anodes, Power stations, Exergy, Flow (Dynamics), Fuels
Proceedings Papers

Flow Field in a Single-Stage Model Air Turbine Rotor-Stator Cavity With Pre-Swirled Purge Flow

D. M. Dunn, D. W. Zhou, K. Saha, K. D. Squires, R. P. Roy, Y. W. Kim, H. K. Moon
Proc. ASME. GT2010, Volume 7: Turbomachinery, Parts A, B, and C, 2477-2487, June 14–18, 2010
Publisher: American Society of Mechanical Engineers
Paper No: GT2010-22869
https://doi.org/10.1115/GT2010-22869
View Paper titled, Flow Field in a Single-Stage Model Air Turbine Rotor-Stator Cavity With Pre-Swirled Purge Flow
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Topics: Cavities, Flow (Dynamics), Rotors, Stators, Turbines, Pressure, Blades, Computation, Disks, Reynolds number
Journal Articles

Main Gas Ingestion in a Turbine Stage for Three Rim Cavity Configurations

D. W. Zhou, R. P. Roy, C.-Z. Wang, J. A. Glahn
Journal: Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2011, 133(3): 031023.
https://doi.org/10.1115/1.4002423
Published Online: December 7, 2010
View Article titled, Main Gas Ingestion in a Turbine Stage for Three Rim Cavity Configurations
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Topics: Cavities, Rotors, Stators, Flow (Dynamics), Turbines, Pressure
Proceedings Papers

Main Gas Ingestion in a Turbine Stage for Three Rim Cavity Configurations

D. W. Zhou, R. P. Roy, C.-Z. Wang, J. A. Glahn
Proc. ASME. GT2009, Volume 3: Heat Transfer, Parts A and B, 1239-1252, June 8–12, 2009
Publisher: American Society of Mechanical Engineers
Paper No: GT2009-59851
https://doi.org/10.1115/GT2009-59851
View Paper titled, Main Gas Ingestion in a Turbine Stage for Three Rim Cavity Configurations
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Topics: Cavities, Turbines, Flow (Dynamics), Stators, Air flow, Computer simulation, Dimensions, Geometry, Particulate matter, Pressure