standard wall function UDF fluent (k-omega model) -- CFD Online Discussion Forums

April 27, 2017, 19:05	standard wall function UDF fluent (k-omega model)	#1
alinik Senior Member ali Join Date: Oct 2009 Posts: 318 Rep Power: 18	Hi all, Has anyone written a wall function in UDF for k-omega turbulence model? Apparently there are two methods that this can be done. 1)Adding a source term in momentum equation. 2)modifying turbulence viscosity in cells adjacent to the wall. ( more info: https://www.cfd-online.com/Wiki/Two_...all_treatments and https://www.cfd-online.com/Wiki/Two_...all_treatments) I am trying to the latter. But I am lost. Do I have to iterate over y+ or can I used the macros in fluent library for that matter. Thanks, Ali

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