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Keywords: Nusselt number
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Proceedings Papers

Proc. ASME. GT2022, Volume 6B: Heat Transfer — General Interest/Additive Manufacturing Impacts on Heat Transfer; Internal Air Systems; Internal Cooling, V06BT13A018, June 13–17, 2022
Paper No: GT2022-82914
... AM DMLS roughness sand grain height CFD friction factor Nusselt number pressure loss heat transfer Abstract Additive Manufacturing (AM) in turbine technology enables the manufacture of complex and detailed shapes such as optimized cooling channel designs. However, the AM...
Proceedings Papers

Proc. ASME. GT2021, Volume 5B: Heat Transfer — General Interest; Internal Air Systems; Internal Cooling, V05BT15A008, June 7–11, 2021
Paper No: GT2021-59080
... transfer performance over the simulated Mass flow rate, kg/s flow range. When the Reynolds number is 14,000, the best heat transfer performance can be achieved, and the comprehensive Nu Nusselt number heat transfer performance parameters of SC, SR, SD and SFS cases can increase by up to 11.0%, 14.3%, 12.2...
Proceedings Papers

Proc. ASME. GT2020, Volume 7A: Heat Transfer, V07AT15A034, September 21–25, 2020
Paper No: GT2020-16115
.... The turning internal radius has stronger effect than turning angle. With higher jet Reynolds number, both the heat transfer and total pressure loss increase dramatically, and the effects of geometrical parameters are clearer. turbine blade internal cooling Reynolds number Nusselt number total...
Proceedings Papers

Proc. ASME. GT2020, Volume 7A: Heat Transfer, V07AT15A024, September 21–25, 2020
Paper No: GT2020-15389
... of this investigation is to reduce the vortex occurring near the rib for improving the performance of heat transfer, such as the Nusselt number and thermal performance factor. To investigate the heat transfer performance and fluid flow characteristics of internal cooling turbine blades, a parametric study of the cutted...
Proceedings Papers

Proc. ASME. GT2019, Volume 5A: Heat Transfer, V05AT11A005, June 17–21, 2019
Paper No: GT2019-90421
... film cooling , which is pushed by centrifugal force and minimizes the mixing with spent cooling air. Namely, the greatly organized coolant flow generates higher cooling effectiveness and lower coolant demand. Both the Nusselt number on the channel surfaces and total pressure loss increase significantly...
Proceedings Papers

Proc. ASME. GT2007, Volume 4: Turbo Expo 2007, Parts A and B, 287-294, May 14–17, 2007
Paper No: GT2007-27296
... and water as coolant. They are expressed in dimensionless forms of polynomial of Reynolds number and Prandtl number. The same correlation of Nusselt number is found applicable to both fluids and its value is almost two times larger than Dittus Boelter correlation. It was also shown that the above form...