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July 5, 2011, 12:37 |
gradScheme Calculation
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#1 |
Senior Member
Join Date: Nov 2009
Location: Michigan
Posts: 135
Rep Power: 16 |
How does OF calculate gradient. Suppose Gauss linear is the chosen grad scheme. Which cells does it consider for calculating the gradient?
If the grid is cartesian (perfectly aligned with x,y and z axes), calculation of gradients on the faces of the cell is straightforward. But how does OF handle for a grid not aligned with x,y and z axes? |
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July 6, 2011, 08:31 |
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#2 |
Senior Member
Kathrin Kissling
Join Date: Mar 2009
Location: Besigheim, Germany
Posts: 134
Rep Power: 17 |
Hey,
have a look at the dissertation of Hrv Jasak. http://powerlab.fsb.hr/ped/kturbo/Op...jeJasakPhD.pdf The nonorthogonal correction is explained there. Best Kathrin |
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