If you are looking for some online training course for OpenFOAM, you are welcome to join my youtube channel. There, I uploaded some videos on how to do numerical simulation using OpenFOAM step by step.
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Calculate Nusslet number along pipe
Nusslet Number is a dimensionless number and usually reported in heat transfer context. It is defined as:
OpenFOAM workshop at IHA
I cooperate with different groups and organization for OpenFOAM training.
IHA (Iranian Hydraulic Association) is one of them. The workshop is held in 3 levels, one introductory level and two complementary levels.