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Gradient calculation in unstructured mesh.

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Old   October 10, 1999, 04:18
Default Gradient calculation in unstructured mesh.
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H.Choi
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I've been writing my own research code using unstructured, pressure-based FV approach. I uses node centered scheme, edge-based data structure, and Gauss theorem. As I know, Gauss Theorem, Least square, or weighted least square method are generally used to calculate cell gradients. Can anyone give me some advice and information about differences of these methods?
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