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Modify the momentum equations

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Old   September 12, 2020, 02:42
Exclamation Modify the momentum equations
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a0407
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Hi guys, I derived this governing equations. There is a coefficient in front of the convective term, and also there is an additional term in the end of these momentum equations. I know that I can add the last term by adding source terms function, but how do I add the coefficient? Thanks.
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