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#1 |
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Matthew
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Suppose I have a rectangular cell with vertices at
![]() ![]() I know how to approximate: ![]() on the east, and west faces using Taylor series is a simple way. However, I am confused about how to do it on the north, and south sides. I thought about taking averages around the north(or south) edge. ![]() |
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#2 |
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Matthew
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#3 |
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Filippo Maria Denaro
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That depends on the choice you did for the colocation of phi. Is it at the FV center X(i+1/2),Y(j+1/2) or is cell-vertex ?
It seems a cell-center colocation, thus you need of an interpolation. But why do you need a tangential derivative on the faces? In a FV scheme it never enters into the update. |
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Matthew
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#5 |
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Filippo Maria Denaro
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The normal component of the tensor has tangential derivative ? Then yes, use a linear interpolation.
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finite volume method |
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