![]() ![]() When I calculate/plot htc with 3rd turbulence model then the values changed too much. Other Research paper shows similar trends. When I calculate/plot heat transfer coefficient using 1st & 2nd turbulence model then the obtained values appears near the experimental values. I exported the results (Wall Heat Transfer Coefficient, Wall Adjacent temperature and Wall heat flux) in Microsoft Excel and then I used tbulk (bulk temperature) to calculate my new heat transfer coefficient (htc) as mentioned in the FAQ. I have gone through this page ( ) and also read other posts. These turbulence model calculate wall heat transfer coefficient based on turbulent wall function. ![]() ![]() SST Turbulence Model with automatic wall function and with Transitional turbulence Gamma-Theta. SST Turbulence Model with automatic wall function (Default)ģ. k epsilon Turbulence Model with scalable wall function (Default)Ģ. I used three turbulence model available in CFX in order to get best match with experimental values available on the mid span of blade (both pressure & suction side).ġ. The domain include hot gas domain, solid blade domain and cold gas domain (cooling channels). I performed steady-state CFD analysis (3D conjugate heat transfer analysis) of a gas turbine blade using Ansys CFX 2020 R1. ![]()
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