gradient calculation of cell vertex finite volume method -- CFD Online Discussion Forums

January 29, 2014, 05:19	gradient calculation of cell vertex finite volume method	#1
h.bozorgi New Member hoda Join Date: Jan 2014 Posts: 1 Rep Power: 0	I am solving shallow water equations using cell vertex finite volume method. The computational domain is discretized into a triangular mesh. I need to calculate the flow variable gradient at vertex of each triangular. I used least-square method but it wasn't accurate. maybe I didn't calculate properly at boundary!? I'm considering using Green-Guass method but I don't know how to calculate the gradient at vertex which are on boundary, such as solid wall, inflow or outflow boundary. Any one can give some suggestion. Thanks in advance.

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