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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

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
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
Proceedings Papers

The Flow Field and Main Gas Ingestion in a Rotor-Stator Cavity

R. P. Roy, D. W. Zhou, S. Ganesan, C.-Z. Wang, R. E. Paolillo, B. V. Johnson
Proc. ASME. GT2007, Volume 4: Turbo Expo 2007, Parts A and B, 1189-1198, May 14–17, 2007
Publisher: American Society of Mechanical Engineers
Paper No: GT2007-27671
https://doi.org/10.1115/GT2007-27671
View Paper titled, The Flow Field and Main Gas Ingestion in a Rotor-Stator Cavity
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Topics: Cavities, Flow (Dynamics), Rotors, Stators, Fluids, Air flow, Computational fluid dynamics, Turbines, Blades, Disks
Proceedings Papers

Experiments on Gas Ingestion Through Axial-Flow Turbine Rim Seals

R. P. Roy, J. Feng, D. Narzary, P. Saurabh, R. E. Paolillo
Proc. ASME. GT2004, Volume 4: Turbo Expo 2004, 347-358, June 14–17, 2004
Publisher: American Society of Mechanical Engineers
Paper No: GT2004-53394
https://doi.org/10.1115/GT2004-53394
View Paper titled, Experiments on Gas Ingestion Through Axial-Flow Turbine Rim Seals
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Topics: Axial flow, Turbines, Air flow, Blades, Cavities, Rotors, Computational fluid dynamics, Disks, Flow (Dynamics), Pressure
Journal Articles

Flow and Heat Transfer in Heat Recovery Steam Generators

N. Hegde, I. Han, T. W. Lee, R. P. Roy
Journal: Journal of Energy Resources Technology
Publisher: ASME
Article Type: Research Papers
J. Energy Resour. Technol. September 2007, 129(3): 232–242.
https://doi.org/10.1115/1.2751505
Published Online: March 24, 2007
View Article titled, Flow and Heat Transfer in Heat Recovery Steam Generators
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Topics: Flow (Dynamics), Heat recovery steam generators, Heat transfer, Simulation, Combustion gases
Journal Articles

Experiment on Gas Ingestion Through Axial-Flow Turbine Rim Seals

R. P. Roy, J. Feng, D. Narzary, R. E. Paolillo
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Technical Papers
J. Eng. Gas Turbines Power. July 2005, 127(3): 573–582.
https://doi.org/10.1115/1.1850499
Published Online: June 24, 2005
View Article titled, Experiment on Gas Ingestion Through Axial-Flow Turbine Rim Seals
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Topics: Blades, Disks, Pressure, Rotors, Stators, Turbines, Cavities, Air flow
Journal Articles

A Computational Model of a Combined Cycle Power Generation Unit

V. Ramaprabhu, Graduate Research Assistant, R. P. Roy, Professor, Fellow ASME
Journal: Journal of Energy Resources Technology
Publisher: ASME
Article Type: Technical Papers
J. Energy Resour. Technol. September 2004, 126(3): 231–240.
https://doi.org/10.1115/1.1789523
Published Online: October 19, 2004
View Article titled, A Computational Model of a Combined Cycle Power Generation Unit
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Topics: Combined cycles, Combustion chambers, Compressors, Condensers (steam plant), Energy generation, Flow (Dynamics), Gas turbines, Heat recovery steam generators, Pressure, Steam
Journal Articles

Vapor Phase Measurements in Subcooled Boiling Flow

S. Kang, R. P. Roy, Professor, Fellow ASME
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Technical Notes
J. Heat Mass Transfer. December 2002, 124(6): 1207–1209.
https://doi.org/10.1115/1.1517269
Published Online: December 3, 2002
View Article titled, Vapor Phase Measurements in Subcooled Boiling Flow
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Topics: Boiling, Bubbles, Flow (Dynamics), Probes, Sensors, Subcooling, Vapors, Fibers