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How to specify a timevarying nonuniform gradient of p at a patch

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Old   October 4, 2007, 10:08
Default Hello everyone, I want to a
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Thomas Gallinger
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Hello everyone,

I want to apply calculated values onto the gradient of p at a boundary patch. There are new values in every time step and they are non-uniform.

Apllying some values to p is quite simple, but how to specify values for the gradient at the boundary of a field?

Does anyone have a suggestion? Any help appreciated!

Many Thanks
Thomas
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Old   October 4, 2007, 16:00
Default Hi Thomas! If you need it a
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Bernhard Gschaider
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Hi Thomas!

If you need it at every time-step, you propably will have to program a boundary condition.

Have a look at $FOAM_SRC/finiteVolume/fields/fvPatchFields/derived/fixedFluxPressure (that boundary condition sets a pressure gradient, so it might give you an idea how to do it)

Bernhard
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Old   October 5, 2007, 02:02
Default Thanks very much Bernhard!
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Thomas Gallinger
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Thanks very much Bernhard!

I will try it.

Thomas
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