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FEM v's FVM

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Old   February 10, 2002, 18:50
Default FEM v's FVM
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Tommy
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Hi everybody,

I have a problem that I am trying to find a straight forward answer on i.e. reams of theoretical derivations does not do it for me... I ran a certain grid independant mesh using FIDAP and Fluent and I plotted the results for the wall shear rates. Though the models had the exact same flow conditions and the model was grid independant the results were quite different. They are two different solvers and there must be expected to be different results due to discretisation, however I need to know what the reason between the way they calculate wall shear rates. Is it due to the interpolation methods used to the cell nodes? Has anybody else done FEM/FVM comparisons? Thanks for any comments, Tommy.
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