UDS - Calculating Face Normal
I'd like to know how to calculate the (unit) normal to a face using a Fluent macro/function from within a v5.4 user defined function.
I'd like to do this for the face f, passed by Fluent to the function DEFINE_UDS_FLUX(uds_flux,f,thread,i), so as to calculate the flux as a function of the face's orientation.
Any help much appreciated,
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