Questions about CFD -- CFD Online Discussion Forums

April 4, 1999, 05:47	Questions about CFD	#1
Lebeau alexandre Guest Posts: n/a	I have some questions about CFD : WHat is exactly Y+, formula? Physics explanation? what is the diffenrence between rampant, fluent and UNS? Is there a methods to determinate the first cells size on a meshing, with wall law? without? What is the method when you want to do hybrid mesh with geomesh and TGrid? Is using unstructured with prism for adaptation a good method? When is it better to use wall law or not, how to you know the kind of mesh would be the best? I am new to CFD and maybe those questions would look stupid or trivial, but I think they are the basis of this area Thank you for your answers and your help. Al.

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