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Boundary condition with value, gradient and constant

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Old   January 25, 2022, 14:50
Default Boundary condition with value, gradient and constant
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Arman N
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Hello everyone,

I need to implement a boundary condition which is a combination of the value and gradient of a parameter with a constant/source term.
For example, for parameter Y the desired equation at boundary is as follows:

c_{1}\nabla Y + c_{2}Y = c_{3}

where c_{1}, c_{2}, and c_{3} are constants.

I wanted to know if there is any BC already available in openFoam for this purpose and if not, how can this be achieved.

*PS: I know this can be somehow implemented using the mixed BC when c_{3} = 0, but I need the more general approach.

Any hint is appreciated.

Arman

Last edited by Arman_N; January 26, 2022 at 10:43. Reason: Refresh
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boundary condition, boundary gradient, boundary value, mixed boundary condition, source term


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