average gradient of FVM on unstructured mesh -- CFD Online Discussion Forums

November 28, 2003, 11:30	average gradient of FVM on unstructured mesh	#1
beginner03 Guest Posts: n/a	When I compute viscous term, I need to use gradient on each edge of control volume. If I use cell-centered discretization, I can use average of gradients at cell centers on the two sides of an edge. How can I compute the gradient of speeds on a boundary edge. In ghost boundary cell, there is no gradient. Thanks for your help in advance.

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