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Is C0 the upstream cell in Fluent?

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Old   October 30, 2009, 11:31
Default Is C0 the upstream cell in Fluent?
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C0 and C1 are telled by the face normal vector. But upstream/downstream are telled by the normal face velocity. So they are different. Am I right?

If I am right, how does Fluent tell which is the upstream cell to calculate the convective item using upwind scheme (flux comes in or goes out)?

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