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what is emetric2?
Posted Jul 23, 2014, 5:48 p.m. EDT Heat Transfer & Phase Change, Computational Fluid Dynamics (CFD), Modeling Tools & Definitions, Parameters, Variables, & Functions Version 4.3b 1 Reply
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I am having trouble understanding a variable in CFD model. The cell Reynolds number is defined as:
spf.cellRe= 0.25*spf.rho*sqrt(emetric(u,v)/emetric2)/spf.mu
I realize spf.rho is sure the density of the fluid and spf.mu is the viscosity of the fluid, however, i cannot seem to understand nor find out what emetric(u,v) or emetric2 is. Can someone help me with this? thanks.
and yes i do know the defination of reynolds number. thanks.
Hello Mengbai Wu
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It is Inner product of covariant element metric tensor (协变张量内积). If you are interested in it and emetric(u,v), please look for some definitions and explanations of metric tensor.