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Outlet BC inside fluid domain

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Old   May 16, 2019, 23:44
Default Outlet BC inside fluid domain
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Dear all,

I have a model like simpleFoam/windAroundBuildings with the same inlet and outlet BC, but there is a heat-exchanger building inside the domain. This building has some fans which functioned as compressors. To make the mesh simpler, is it possible to draw the fans just as circle planes and outlet is applied as BC?

Any suggestions will be very helpful. Thank you in advance.
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Old   May 19, 2019, 17:55
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It sounds like you want a momentum/energy source inside your domain. You can do this with fvOptions -- look for "momentumSource" or "energySource" in the code.

Caelan
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Old   May 20, 2019, 21:17
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Quote:
Originally Posted by clapointe View Post
It sounds like you want a momentum/energy source inside your domain. You can do this with fvOptions -- look for "momentumSource" or "energySource" in the code.

Caelan
Do you mean I have to insert fvOptions in system/controlDict? Or do I have to modify the solver?
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Old   May 20, 2019, 22:22
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If the solver is built to use fvOptions (ie equations have fvOptions as a source term), then you do not need to modify the solver. If a file called "fvOptions" exists -- in constant or system, depending on OF version I think -- then the solver will read it (and some sort of message will be displayed in the terminal or log) and apply the chosen option. Try searching the tutorials for "scalarSemiImplicitSource" or "vectorSemiImplicitSource" for examples.

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