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Proceedings Papers

The Effect of Forcing on Scalar Transport in a Co-Axial Combustor Geometry

P. R. Chandra, S. Acharya, N. Sebastijanovic, P. Panigrahi
Proc. ASME. IMECE98, Heat Transfer: Volume 2 — Combustion and Radiation Heat Transfer, 57-72, November 15–20, 1998
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1998-0620
https://doi.org/10.1115/IMECE1998-0620
View Paper titled, The Effect of Forcing on Scalar Transport in a Co-Axial Combustor Geometry
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Topics: Combustion chambers, Geometry, Scalars, Flow (Dynamics), Fuels, Gas turbines, Jets, Temperature profiles
Proceedings Papers

Effect of Multi-Modal Forcing on Thermal Transport in a Co-Axial Combustor Geometry

P. R. Chandra, Chun L. Lau, S. Acharya
Proc. ASME. IMECE2001, Heat Transfer: Volume 1 — Fundamentals of Heat Transfer, 23-32, November 11–16, 2001
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2001/HTD-24102
https://doi.org/10.1115/IMECE2001/HTD-24102
View Paper titled, Effect of Multi-Modal Forcing on Thermal Transport in a Co-Axial Combustor Geometry
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Topics: Combustion chambers, Geometry, Scalars, Shear (Mechanics), Combustion, Flow (Dynamics), Fuels, Spectra (Spectroscopy), Temperature
Proceedings Papers

The Influence of Turbulence and Reynolds Number on Multiple Slot Film Cooling Over the Suction Surface

L. W. Soma, F. E. Ames, S. Acharya
Proc. ASME. GT2020, Volume 7B: Heat Transfer, V07BT12A057, September 21–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: GT2020-15619
https://doi.org/10.1115/GT2020-15619
View Paper titled, The Influence of Turbulence and Reynolds Number on Multiple Slot Film Cooling Over the Suction Surface
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Topics: Film cooling, Reynolds number, Suction, Turbulence, Cooling, Flow (Dynamics), Thin films, Geometry, Heat, Stress
Journal Articles

Significance of the Direct Excitation Mechanism for High-Frequency Response of Premixed Flames to Flow Oscillations

Vishal S. Acharya, Timothy C. Lieuwen
Journal: Journal of Engineering for Gas Turbines and Power
Publisher: ASME
Article Type: Research-Article
J. Eng. Gas Turbines Power. January 2021, 143(1): 011005.
Paper No: GTP-20-1617
https://doi.org/10.1115/1.4049204
Published Online: December 23, 2020
View Article titled, Significance of the Direct Excitation Mechanism for High-Frequency Response of Premixed Flames to Flow Oscillations
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Topics: Acoustics, Excitation, Flames, Nozzles, Combustion chambers, Heat, Fluctuations (Physics), Oscillations, Flow (Dynamics)
Proceedings Papers

The Influence of Turbulence and Reynolds Number on Slot Film Cooling Over the Downstream Pressure Surface

L. W. Soma, F. E. Ames, S. Acharya
Proc. ASME. GT2019, Volume 5B: Heat Transfer, V05BT19A007, June 17–21, 2019
Publisher: American Society of Mechanical Engineers
Paper No: GT2019-90508
https://doi.org/10.1115/GT2019-90508
View Paper titled, The Influence of Turbulence and Reynolds Number on Slot Film Cooling Over the Downstream Pressure Surface
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Topics: Film cooling, Pressure, Reynolds number, Turbulence, Cooling, Flow (Dynamics), Jets, Chords (Trusses), Coolants, Density
Proceedings Papers

Heat Transfer and Pressure Drop in a Converging Pedestal Array With Exit Area Variation

L. W. Soma, F. E. Ames, S. Acharya
Proc. ASME. GT2018, Volume 5A: Heat Transfer, V05AT16A003, June 11–15, 2018
Publisher: American Society of Mechanical Engineers
Paper No: GT2018-75578
https://doi.org/10.1115/GT2018-75578
View Paper titled, Heat Transfer and Pressure Drop in a Converging Pedestal Array With Exit Area Variation
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Topics: Heat transfer, Pressure drop, Flow (Dynamics), Cooling, Reynolds number, Air flow, Coolants, Diamonds, Failure, Film cooling
Proceedings Papers

Vane Suction Surface Heat Transfer in Regions of Secondary Flows: The Influence of Turbulence Level, Reynolds Number and the Endwall Boundary Condition

J. Varty, L. W. Soma, F. E. Ames, S. Acharya
Proc. ASME. GT2017, Volume 5A: Heat Transfer, V05AT13A010, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-65037
https://doi.org/10.1115/GT2017-65037
View Paper titled, Vane Suction Surface Heat Transfer in Regions of Secondary Flows: The Influence of Turbulence Level, Reynolds Number and the Endwall Boundary Condition
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Topics: Boundary-value problems, Flow (Dynamics), Heat transfer, Reynolds number, Suction, Turbulence, Heating, Thermal boundary layers, Vortices, Boundary layer turbulence
Proceedings Papers

Heat Transfer and Pressure Drop Measurements in a High Solidity Pin Fin Array With Variable Hole Size Incremental Impingement

A. A. Sheikhmohamed, L. W. Soma, F. E. Ames, S. Acharya
Proc. ASME. GT2017, Volume 5A: Heat Transfer, V05AT16A018, June 26–30, 2017
Publisher: American Society of Mechanical Engineers
Paper No: GT2017-65046
https://doi.org/10.1115/GT2017-65046
View Paper titled, Heat Transfer and Pressure Drop Measurements in a High Solidity Pin Fin Array With Variable Hole Size Incremental Impingement
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Topics: Heat transfer, Pressure drop, Cooling, Film cooling, Flow (Dynamics), Pressure, Heat, Jets, Reynolds number, Stress
Proceedings Papers

An Analysis of a Deposition Tolerant Cooling Approach for Nozzle Guide Vanes

J. E. Kingery, F. E. Ames, J. Downs, S. Acharya, B. J. Barker
Proc. ASME. GT2015, Volume 5B: Heat Transfer, V05BT13A006, June 15–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: GT2015-42419
https://doi.org/10.1115/GT2015-42419
View Paper titled, An Analysis of a Deposition Tolerant Cooling Approach for Nozzle Guide Vanes
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Topics: Cooling, Nozzle guide vanes, Design, Film cooling, Turbulence, Boundary-value problems, Engines, Heat, Pressure, Suction
Proceedings Papers

Mechanisms of Turbulence Transport in a Turbine Blade Coolant Passage With a Rib-Turbulator

P. K. Panigrahi, S. Acharya
Proc. ASME. GT1997, Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration, V003T09A012, June 2–5, 1997
Publisher: American Society of Mechanical Engineers
Paper No: 97-GT-119
https://doi.org/10.1115/97-GT-119
View Paper titled, Mechanisms of Turbulence Transport in a Turbine Blade Coolant Passage With a Rib-Turbulator
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Topics: Coolants, Turbine blades, Turbulence, Flow (Dynamics), Stress, Boundary layer turbulence, Dynamics (Mechanics), Shear (Mechanics), Shear stress, Accounting
Proceedings Papers

PLIF and Temperature Measurements in an Actively Forced Swirl-Stabilized Spray Combustor

V. Santhanam, F. C. Knopf, S. Acharya, E. Gutmark
Proc. ASME. GT1999, Volume 2: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations, V002T02A022, June 7–10, 1999
Publisher: American Society of Mechanical Engineers
Paper No: 99-GT-117
https://doi.org/10.1115/99-GT-117
View Paper titled, PLIF and Temperature Measurements in an Actively Forced Swirl-Stabilized Spray Combustor
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Topics: Combustion chambers, Sprays, Temperature measurement, Fuels, Swirling flow, Combustion, Flames, Vortices, Drops, Shear (Mechanics)
Proceedings Papers

Detailed Mass Transfer Distribution in Rotating, Two-Pass Ribbed Coolant Channels With Vortex Generators

V. Eliades, D. E. Nikitopoulos, S. Acharya
Proc. ASME. GT1999, Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration, V003T01A096, June 7–10, 1999
Publisher: American Society of Mechanical Engineers
Paper No: 99-GT-424
https://doi.org/10.1115/99-GT-424
View Paper titled, Detailed Mass Transfer Distribution in Rotating, Two-Pass Ribbed Coolant Channels With Vortex Generators
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Topics: Coolants, Generators, Mass transfer, Vortices, Ducts, Rotation, Rods, Heat, Reynolds number, Blades
Proceedings Papers

Heat Transfer Enhancements in Rotating Two-Pass Coolant Channels With Profiled Ribs: Part 2 — Detailed Measurements

D. E. Nikitopoulos, V. Eliades, S. Acharya
Proc. ASME. GT2000, Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration, V003T01A034, May 8–11, 2000
Publisher: American Society of Mechanical Engineers
Paper No: 2000-GT-0226
https://doi.org/10.1115/2000-GT-0226
View Paper titled, Heat Transfer Enhancements in Rotating Two-Pass Coolant Channels With Profiled Ribs: Part 2 — Detailed Measurements
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Topics: Coolants, Heat transfer, Mass transfer, Heat, Reynolds number, Rotation
Proceedings Papers

Heat Transfer Enhancements in Rotating Two-Pass Coolant Channels With Profiled Ribs: Part 1 — Average Results

S. Acharya, V. Eliades, D. E. Nikitopoulos
Proc. ASME. GT2000, Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration, V003T01A035, May 8–11, 2000
Publisher: American Society of Mechanical Engineers
Paper No: 2000-GT-0227
https://doi.org/10.1115/2000-GT-0227
View Paper titled, Heat Transfer Enhancements in Rotating Two-Pass Coolant Channels With Profiled Ribs: Part 1 — Average Results
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Topics: Coolants, Heat transfer, Ducts, Heat, Flow (Dynamics), Gas turbines, Reynolds number, Rotation, Vorticity
Proceedings Papers

Velocity Measurements in a Combustor Undergoing Limit-Cycle Pressure Oscillations

J. Li, S. Acharya
Proc. ASME. GT2000, Volume 2: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations, V002T02A012, May 8–11, 2000
Publisher: American Society of Mechanical Engineers
Paper No: 2000-GT-0092
https://doi.org/10.1115/2000-GT-0092
View Paper titled, Velocity Measurements in a Combustor Undergoing Limit-Cycle Pressure Oscillations
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Topics: Combustion chambers, Limit cycles, Oscillations, Pressure, Velocity measurement, Combustion, Flow (Dynamics), Drops, Acoustics, Computational fluid dynamics
Proceedings Papers

Infrared Measurements of Thermoacoustic Instabilities in a Swirl-Stabilized Combustor

D. Allgood, S. Murugappan, S. Acharya, E. Gutmark
Proc. ASME. GT2000, Volume 2: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations, V002T02A016, May 8–11, 2000
Publisher: American Society of Mechanical Engineers
Paper No: 2000-GT-0096
https://doi.org/10.1115/2000-GT-0096
View Paper titled, Infrared Measurements of Thermoacoustic Instabilities in a Swirl-Stabilized Combustor
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Topics: Combustion chambers, Heat, Dynamics (Mechanics), Flames, Pressure, Acoustics, Emissions, Ethanol, Flow (Dynamics), Frequency response
Proceedings Papers

Flow Distribution and Heat Transfer Coefficients Inside Gas Holes Discharging Into an Orthogonal Crossflow

S. Acharya, A. Eshtiaghi, R. Schilp
Proc. ASME. GT2011, Volume 5: Heat Transfer, Parts A and B, 1805-1815, June 6–10, 2011
Publisher: American Society of Mechanical Engineers
Paper No: GT2011-46854
https://doi.org/10.1115/GT2011-46854
View Paper titled, Flow Distribution and Heat Transfer Coefficients Inside Gas Holes Discharging Into an Orthogonal Crossflow
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Topics: Flow (Dynamics), Heat transfer coefficients, Heat transfer, Flow simulation, Fluid dynamics, Reynolds number, Separation (Technology), Transient heat transfer, Velocity measurement
Proceedings Papers

Large Eddy Simulations of Film Cooling Flow Fields From Cylindrical and Shaped Holes

D. H. Leedom, S. Acharya
Proc. ASME. GT2008, Volume 4: Heat Transfer, Parts A and B, 865-877, June 9–13, 2008
Publisher: American Society of Mechanical Engineers
Paper No: GT2008-51009
https://doi.org/10.1115/GT2008-51009
View Paper titled, Large Eddy Simulations of Film Cooling Flow Fields From Cylindrical and Shaped Holes
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Topics: Film cooling, Flow (Dynamics), Large eddy simulation, Coolants, Engineering simulation, Simulation, Blades, Physics, Shapes
Proceedings Papers

Heat/Mass Transfer in a 4:1 AR Smooth and Ribbed Coolant Passage With Rotation in 90-Degree and 45-Degree Orientations

S. Acharya, P. Agarwal, D. E. Nikitopoulos
Proc. ASME. GT2004, Volume 3: Turbo Expo 2004, 813-824, June 14–17, 2004
Publisher: American Society of Mechanical Engineers
Paper No: GT2004-53928
https://doi.org/10.1115/GT2004-53928
View Paper titled, Heat/Mass Transfer in a 4:1 AR Smooth and Ribbed Coolant Passage With Rotation in 90-Degree and 45-Degree Orientations
Open the PDF for Heat/Mass Transfer in a 4:1 AR Smooth and Ribbed Coolant Passage With Rotation in 90-Degree and 45-Degree Orientations in another window
Topics: Coolants, Heat, Mass transfer, Rotation, Heat transfer, Reynolds number, Turbine blades
Proceedings Papers

Latticework (Vortex) Cooling Effectiveness: Part 2 — Rotating Channel Experiments

S. Acharya, Fuguo Zhou, Jonathan Lagrone, Gazi Mahmood, Ronald S. Bunker
Proc. ASME. GT2004, Volume 3: Turbo Expo 2004, 833-843, June 14–17, 2004
Publisher: American Society of Mechanical Engineers
Paper No: GT2004-53983
https://doi.org/10.1115/GT2004-53983
View Paper titled, Latticework (Vortex) Cooling Effectiveness: Part 2 — Rotating Channel Experiments
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Topics: Cooling, Vortices, Heat transfer, Blades, Coolants, Density, Heat transfer coefficients, Rotation, Friction, Geometry