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Proceedings Papers

Thrust Force Measurements in an Axial Steam Turbine Test Rig: Effect of Disk Balance Holes

Diganta Narzary, David Stasenko, Nikhil Rao
Proc. ASME. GT2021, Volume 8: Oil and Gas Applications; Steam Turbine, V008T22A010, June 7–11, 2021
Paper No: GT2021-59242
DOI: https://doi.org/10.1115/GT2021-59242
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Topics: Disks, Force measurement, Steam turbines, Thrust, Pressure, Cavities, Rotors, Stators, Airfoils, Axial flow
Proceedings Papers

Thrust Force Measurements in an Axial Steam Turbine Test Rig

David Stasenko, Nikhil Rao, Diganta Narzary
Proc. ASME. GT2020, Volume 9: Oil and Gas Applications; Organic Rankine Cycle Power Systems; Steam Turbine, V009T23A013, September 21–25, 2020
Paper No: GT2020-14673
DOI: https://doi.org/10.1115/GT2020-14673
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Topics: Force measurement, Steam turbines, Thrust, Pressure, Cavities, Rotors, Disks, Stators, Leakage flows, Axial flow
Journal Articles

Film Cooling Performance of Tripod Antivortex Injection Holes Over the Pressure and Suction Surfaces of a Nozzle Guide Vane

Sridharan Ramesh, Christopher LeBlanc, Diganta Narzary, Srinath Ekkad, Mary Anne Alvin
Journal: Journal of Thermal Science and Engineering Applications
Article Type: Research-Article
J. Thermal Sci. Eng. Appl. June 2017, 9(2): 021006.
Paper No: TSEA-15-1181
DOI: https://doi.org/10.1115/1.4035290
Published Online: January 24, 2017
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Topics: Airfoils, Coolants, Cooling, Film cooling, Flow (Dynamics), Geometry, Pressure, Suction, Heat conduction, Density
Proceedings Papers

Turbine Blade Tip Film-Cooling and Heat Transfer Measurements at High Blowing Ratios

Diganta Narzary, Kevin Liu, Je-Chin Han, Shantanu Mhetras, Kenneth Landis
Proc. ASME. GT2014, Volume 5B: Heat Transfer, V05BT13A025, June 16–20, 2014
Paper No: GT2014-25793
DOI: https://doi.org/10.1115/GT2014-25793
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Topics: Film cooling, Heat transfer, Turbine blades, Blades, Heat transfer coefficients, Rails, Suction, Cascades (Fluid dynamics), Pressure, Coolants
Proceedings Papers

Measurement and Modelling of Blade Tip Cooling in Gas Turbines

Julio Teloxa, Diganta Narzary, F. Z. Sierra, Jiang Lei, Francisco Carrillo, Je-Chin Han
Proc. ASME. GT2013, Volume 3B: Heat Transfer, V03BT13A034, June 3–7, 2013
Paper No: GT2013-94812
DOI: https://doi.org/10.1115/GT2013-94812
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Topics: Blades, Cooling, Gas turbines, Modeling, Cavities, Clearances (Engineering), Metals, Reynolds number, Temperature, Airfoils
Proceedings Papers

Performance of Tripod Antivortex Injection Holes on Vane Film Cooling

Christopher LeBlanc, Diganta Narzary, Srinath Ekkad, Mary Anne Alvin
Proc. ASME. HT2012, Volume 1: Heat Transfer in Energy Systems; Theory and Fundamental Research; Aerospace Heat Transfer; Gas Turbine Heat Transfer; Transport Phenomena in Materials Processing and Manufacturing; Heat and Mass Transfer in Biotechnology; Environmental Heat Transfer; Visualization of Heat Transfer; Education and Future Directions in Heat Transfer, 745-755, July 8–12, 2012
Paper No: HT2012-58135
DOI: https://doi.org/10.1115/HT2012-58135
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Topics: Film cooling, Design, Coolants, Geometry, Density, Pressure, Suction, Vortices, Airfoils, Carbon dioxide
Proceedings Papers

Heat Transfer and Thermal Mechanical Stress Distributions in Gas Turbine Blades

Fernando Z. Sierra, Diganta Narzary, Candelario Bolaina, Je Chin Han, Janusz Kubiak, Jesu´s Nebradt
Proc. ASME. GT2009, Volume 3: Heat Transfer, Parts A and B, 115-126, June 8–12, 2009
Paper No: GT2009-59194
DOI: https://doi.org/10.1115/GT2009-59194
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Topics: Blades, Gas turbines, Heat transfer, Stress, Cooling, Metals, Temperature, Temperature distribution, Air flow, Boundary-value problems
Proceedings Papers

Turbine Blade Platform Film Cooling With Typical Stator-Rotor Purge Flow and Discrete-Hole Film Cooling

Zhihong Gao, Diganta Narzary, Je-Chin Han
Proc. ASME. GT2008, Volume 4: Heat Transfer, Parts A and B, 263-274, June 9–13, 2008
Paper No: GT2008-50286
DOI: https://doi.org/10.1115/GT2008-50286
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Topics: Film cooling, Flow (Dynamics), Rotors, Stators, Turbine blades, Pressure, Blades, Cooling, Cascades (Fluid dynamics), Mach number
Proceedings Papers

Influence of Cooling Flow Rate Variation on Gas Turbine Blade Temperature Distributions

Fernando Z. Sierra Espinosa, Je Chin Han, Areli Uribe Portugal, J. Kubiak, Diganta Narzary, Sarah Blake, Fernando Cadena, Hugo Lara, Jesu´s Nebradt
Proc. ASME. GT2008, Volume 4: Heat Transfer, Parts A and B, 45-53, June 9–13, 2008
Paper No: GT2008-50103
DOI: https://doi.org/10.1115/GT2008-50103
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Topics: Blades, Cooling, Flow (Dynamics), Gas turbines, Temperature distribution, Temperature, Air flow, Compressors, Thermal stresses, Combustion
Journal Articles

Turbine Blade Platform Film Cooling With Typical Stator-Rotor Purge Flow and Discrete-Hole Film Cooling

Zhihong Gao, Diganta Narzary, Je-Chin Han
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. October 2009, 131(4): 041004.
DOI: https://doi.org/10.1115/1.3068327
Published Online: July 1, 2009
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Topics: Film cooling, Flow (Dynamics), Pressure, Rotors, Stators, Blades, Cooling, Coolants
Proceedings Papers

Upstream Vortex Effects on Turbine Blade Platform Film Cooling With Typical Stator-Rotor Purge Flow

Zhihong Gao, Diganta Narzary, Shantanu Mhetras, Je-Chin Han
Proc. ASME. IMECE2007, Volume 8: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A and B, 707-718, November 11–15, 2007
Paper No: IMECE2007-41717
DOI: https://doi.org/10.1115/IMECE2007-41717
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Topics: Film cooling, Flow (Dynamics), Rotors, Stators, Turbine blades, Vortices, Blades, Wings, Cascades (Fluid dynamics), Chords (Trusses)
Journal Articles

Effect of Inlet Flow Angle on Gas Turbine Blade Tip Film Cooling

Zhihong Gao, Diganta Narzary, Shantanu Mhetras, Je-Chin Han
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. July 2009, 131(3): 031005.
DOI: https://doi.org/10.1115/1.2987235
Published Online: April 8, 2009
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Topics: Blades, Coolants, Film cooling, Flow (Dynamics), Pressure, Cavities
Proceedings Papers

Effect of Inlet Flow Angle on Gas Turbine Blade Tip Film Cooling

Zhihong Gao, Diganta Narzary, Shantanu Mhetras, Je-Chin Han
Proc. ASME. GT2007, Volume 4: Turbo Expo 2007, Parts A and B, 43-53, May 14–17, 2007
Paper No: GT2007-27066
DOI: https://doi.org/10.1115/GT2007-27066
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Topics: Blades, Film cooling, Flow (Dynamics), Gas turbines, Pressure, Cavities, Coolants, Design, Cascades (Fluid dynamics), Clearances (Engineering)
Journal Articles

Effect of a Cutback Squealer and Cavity Depth on Film-Cooling Effectiveness on a Gas Turbine Blade Tip

Shantanu Mhetras, Diganta Narzary, Zhihong Gao, Je-Chin Han
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. April 2008, 130(2): 021002.
DOI: https://doi.org/10.1115/1.2776949
Published Online: February 12, 2008
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Topics: Blades, Cavities, Film cooling, Pressure, Coolants, Gas turbines, Flow (Dynamics)