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Basic Questions Regarding UDS and UDFs

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Old   October 20, 2016, 23:30
Default Basic Questions Regarding UDS and UDFs
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Lim Kiang Teng
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In my problem, I have two bodies [ A | B ]

Let's say I have defined a UDS (i.e. moisture content) which is initialized to some value in A.

If I use a DEFINE_PROFILE at the interface between A and B representing the flux of A into B, will A be depleted over time in a transient solution? (Due to mass transfer from A to the interface)

I'm still new to fluent so please tell me if you need more information.
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Old   October 22, 2016, 06:05
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Paolo Lampitella
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You can't do what you describe in Fluent, but just because you don't actually need to.

As you are just fixing the exchange between A and B, you can simulate them separately. B is just fine by itself. I have some doubts on the feasibility of fixing the outlet profile in A (as that tipically requires a velocity inlet boundary condition), but that might work (sometimes it does for the velocity).
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