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Proceedings Papers

Uncertainty Quantification Analysis of Back Facing Steps Film Cooling Configurations

Eiji Sakai, Meng Bai, Richard Ahlfeld, Francesco Montomoli
Proc. ASME. GT2018, Volume 5A: Heat Transfer, V05AT12A009, June 11–15, 2018
Paper No: GT2018-75686
DOI: https://doi.org/10.1115/GT2018-75686
View Paper titled, Uncertainty Quantification Analysis of Back Facing Steps Film Cooling Configurations
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Topics: Film cooling, Uncertainty quantification, Engineering simulation, Simulation, Uncertainty, Approximation, Chaos, Coolants, Cooling, Eddies (Fluid dynamics)
Proceedings Papers

Numerical Study on Effects of Density Ratio on Film Cooling Flow Structure and Film Cooling Effectiveness

Eiji Sakai, Toshihiko Takahashi
Proc. ASME. GT2017, Volume 5A: Heat Transfer, V05AT12A001, June 26–30, 2017
Paper No: GT2017-63168
DOI: https://doi.org/10.1115/GT2017-63168
View Paper titled, Numerical Study on Effects of Density Ratio on Film Cooling Flow Structure and Film Cooling Effectiveness
Click here to open pdf in another window PDF for Numerical Study on Effects of Density Ratio on Film Cooling Flow Structure and Film Cooling Effectiveness
Topics: Density, Film cooling, Flow (Dynamics), Vortices, Shear (Mechanics), Engineering simulation, Simulation, Blades, Coolants, Cooling
Proceedings Papers

Numerical Evaluation of Influence of Internal Ribs on Heat Transfer in Flat Plate Film Cooling

Yukiko Agata, Toshihiko Takahashi, Eiji Sakai, Koichi Nishino
Proc. ASME. GT2013, Volume 3B: Heat Transfer, V03BT13A053, June 3–7, 2013
Paper No: GT2013-95450
DOI: https://doi.org/10.1115/GT2013-95450
View Paper titled, Numerical Evaluation of Influence of Internal Ribs on Heat Transfer in Flat Plate Film Cooling
Click here to open pdf in another window PDF for Numerical Evaluation of Influence of Internal Ribs on Heat Transfer in Flat Plate Film Cooling
Topics: Film cooling, Flat plates, Heat transfer, Cooling, Turbines, Blades, Heat transfer coefficients, Temperature, Computational fluid dynamics, Thermal efficiency
Proceedings Papers

Development of Nondestructive Testing Method for Examining Thermal Resistance of Thermal Barrier Coatings on Gas Turbine Blades

Takayuki Ozeki, Tomoharu Fujii, Eiji Sakai, Tetsuo Fukuchi, Norikazu Fuse
Proc. ASME. GT2013, Volume 4: Ceramics; Concentrating Solar Power Plants; Controls, Diagnostics and Instrumentation; Education; Electric Power; Fans and Blowers, V004T02A005, June 3–7, 2013
Paper No: GT2013-94748
DOI: https://doi.org/10.1115/GT2013-94748
View Paper titled, Development of Nondestructive Testing Method for Examining Thermal Resistance of Thermal Barrier Coatings on Gas Turbine Blades
Click here to open pdf in another window PDF for Development of Nondestructive Testing Method for Examining Thermal Resistance of Thermal Barrier Coatings on Gas Turbine Blades
Topics: Blades, Gas turbines, Nondestructive evaluation, Thermal barrier coatings, Thermal resistance, Temperature, Heating, Carbon dioxide lasers, Combustion, Durability
Proceedings Papers

Experimental Study on Effects of Internal Rib and Rear Bump on Film Effectiveness

Eiji Sakai, Toshihiko Takahashi, Yukiko Agata
Proc. ASME. GT2012, Volume 4: Heat Transfer, Parts A and B, 1245-1258, June 11–15, 2012
Paper No: GT2012-68268
DOI: https://doi.org/10.1115/GT2012-68268
View Paper titled, Experimental Study on Effects of Internal Rib and Rear Bump on Film Effectiveness
Click here to open pdf in another window PDF for Experimental Study on Effects of Internal Rib and Rear Bump on Film Effectiveness
Topics: Engineering simulation, Film cooling, Flow (Dynamics), Simulation, Turbine blades, Vortices
Journal Articles

Experimental Study on Effects of Internal Ribs and Rear Bumps on Film Cooling Effectiveness

Eiji Sakai, Toshihiko Takahashi, Yukiko Agata
Journal: Journal of Turbomachinery
Article Type: Research-Article
J. Turbomach. May 2013, 135(3): 031025.
Paper No: TURBO-12-1116
DOI: https://doi.org/10.1115/1.4007546
Published Online: March 25, 2013
View Article titled, Experimental Study on Effects of Internal Ribs and Rear Bumps on Film Cooling Effectiveness
Click here to open pdf in another window PDF for Experimental Study on Effects of Internal Ribs and Rear Bumps on Film Cooling Effectiveness
Topics: Film cooling, Flow (Dynamics)
Proceedings Papers

Experimental and Numerical Study on Effects of Turbulence Promoters on Flat Plate Film Cooling

Eiji Sakai, Toshihiko Takahashi
Proc. ASME. GT2011, Volume 5: Heat Transfer, Parts A and B, 105-115, June 6–10, 2011
Paper No: GT2011-45196
DOI: https://doi.org/10.1115/GT2011-45196
View Paper titled, Experimental and Numerical Study on Effects of Turbulence Promoters on Flat Plate Film Cooling
Click here to open pdf in another window PDF for Experimental and Numerical Study on Effects of Turbulence Promoters on Flat Plate Film Cooling
Topics: Film cooling, Flat plates, Turbulence, Flow (Dynamics), Cooling, Simulation, Temperature, Coolants, Eddies (Fluid dynamics), Reynolds number
Journal Articles

Assessment of URANS and DES for Prediction of Leading Edge Film Cooling

Toshihiko Takahashi, Ken-ichi Funazaki, Hamidon Bin Salleh, Eiji Sakai, Kazunori Watanabe
Journal: Journal of Turbomachinery
Article Type: Research Papers
J. Turbomach. May 2012, 134(3): 031008.
DOI: https://doi.org/10.1115/1.4003054
Published Online: July 14, 2011
View Article titled, Assessment of URANS and DES for Prediction of Leading Edge Film Cooling
Click here to open pdf in another window PDF for Assessment of URANS and DES for Prediction of Leading Edge Film Cooling
Topics: Film cooling, Flow (Dynamics), Temperature, Turbulence, Cooling, Computational fluid dynamics
Proceedings Papers

Assessment of URANS and DES for Prediction of Leading Edge Film Cooling

Toshihiko Takahashi, Ken-ich Funazaki, Hamidon Bin Salleh, Eiji Sakai, Kazunori Watanabe
Proc. ASME. GT2010, Volume 4: Heat Transfer, Parts A and B, 1387-1399, June 14–18, 2010
Paper No: GT2010-22325
DOI: https://doi.org/10.1115/GT2010-22325
View Paper titled, Assessment of URANS and DES for Prediction of Leading Edge Film Cooling
Click here to open pdf in another window PDF for Assessment of URANS and DES for Prediction of Leading Edge Film Cooling
Topics: Film cooling, Turbulence, Computational fluid dynamics, Simulation, Temperature, Vortices, Blades, Convection, Cooling, Durability
Proceedings Papers

Development of Non-Destructive Heat Resistance Evaluation System for TBC on Gas Turbine Blade

Tomoharu Fujii, Toshihiko Takahashi, Eiji Sakai, Terutaka Fujioka
Proc. ASME. GT2010, Volume 3: Controls, Diagnostics and Instrumentation; Cycle Innovations; Marine, 125-131, June 14–18, 2010
Paper No: GT2010-22613
DOI: https://doi.org/10.1115/GT2010-22613
View Paper titled, Development of Non-Destructive Heat Resistance Evaluation System for TBC on Gas Turbine Blade
Click here to open pdf in another window PDF for Development of Non-Destructive Heat Resistance Evaluation System for TBC on Gas Turbine Blade
Topics: Blades, Gas turbines, Heat, Temperature, Combustion, Base metals, Carbon dioxide lasers, Combined cycles, Combustion chambers, Cooling
Proceedings Papers

Numerical Study on Flat Plate and Leading Edge Film Cooling

Eiji Sakai, Toshihiko Takahashi, Ken-ichi Funazaki, Hamidon Bin Salleh, Kazunori Watanabe
Proc. ASME. GT2009, Volume 3: Heat Transfer, Parts A and B, 491-503, June 8–12, 2009
Paper No: GT2009-59517
DOI: https://doi.org/10.1115/GT2009-59517
View Paper titled, Numerical Study on Flat Plate and Leading Edge Film Cooling
Click here to open pdf in another window PDF for Numerical Study on Flat Plate and Leading Edge Film Cooling
Topics: Film cooling, Flat plates, Reynolds-averaged Navier–Stokes equations, Flow (Dynamics), Pipes, Simulation, Computation, Cooling, Turbulence