UDS flux and boundaries -- CFD Online Discussion Forums

April 18, 2006, 09:36	UDS flux and boundaries	#1
Kasper Skriver Guest Posts: n/a	USER DEFFINED SCALAR If the flux consist of both convective(a) and diffusive(b) flux, then: (a) The udf deffine_uds_flux only deffines the convective flux through all faces, even boundary faces. (b) The diffusive flux is calculated by Fluent, the udf deffine_diffusivity is used to deffine the diffusivity coefficient. At the boundaries: When you use flux as a boundary condition, is it then convective(a) or convective and diffusive(a+b) flux that you deffine?

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