Differentiating between Boundary and Interface Faces -- CFD Online Discussion Forums

May 31, 2012, 05:07	Differentiating between Boundary and Interface Faces	#1
rmonaghan New Member Rory Monaghan Join Date: May 2010 Posts: 3 Rep Power: 16	Hello, I am working with a UDF over a domain containing interfaces between different mesh structures. I need to distinguish between (a) interior cell faces, (b) boundary faces (i.e. at the edge of the domain) and (c) cell faces at INTERFACE boundaries (i.e. within the domain). I am using the BOUNDARY_FACE_THREAD_P macro to pick out boundary faces but this also picks out interface faces. Is there a unique macro to identify interface faces or can anyone suggest a way to distinguish between them? Thanks very much! Rory

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