Face centered or vertex centered
Does Cfx uses a cell-centered or vertex-centered finite volume approach ?
Thank you very much for the attention Tommaso |
Re: Face centered or vertex centered
CFX uses vertex-centered finite volume.
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Re: Face centered or vertex centered
CFX additionally uses finite element shape functions to approximate the profile within the elements. As opposed to a cell centered discretization being applied at each face connecting two mesh vertices.
Or, maybe this is more clear: You put solution points on the vertex and use either: a cell centered (not sure if a commercial code does this) or a FEM discretization (like CFX). Or, your solution points are at cell centroids and you use a cell centered discretization (like FLUENT for example). Any of the methods should pretty much give the same answer under a mesh refinement and will also have similar mesh convergence... |
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