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how to get the divergence of a vector variable on a patch

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Old   March 18, 2013, 10:06
Default how to get the divergence of a vector variable on a patch
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Gao Pan
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For example,
First,
volVectorField A
(
//....
);
Then, I want to calculate the divergence of A.boundaryField()[patchI]. And how to make it?
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Old   March 18, 2013, 15:12
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Check the utility foamCalc
It calculates divergence of fields
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