Gauss theorem & cell volume -- CFD Online Discussion Forums

February 5, 2005, 06:46	Gauss theorem & cell volume	#1
x_flow Guest Posts: n/a	Hello, I am developing a 3D navier-stokes code. Alhtough is works fine in uniform spacing grids, it seems to give strange results when using uneven spacing grids. I think it is due to the factor between the volume of the cell and the sum of surface area of the cell (Gauss theorem). As the volumes increases, it's surface does not increase in the same degree. Please check this image to see what I am talking about: http://xflow.50megs.com/ngrid.GIF Any help is appreciated. Thank you in advance, x-flow.

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