CFD Online Discussion Forums - Implementation of Robin boundary condition in OpenFoam

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sourav8016

August 28, 2021 00:41

Implementation of Robin boundary condition in OpenFoam

I have to code the following Boundary Condition in OpenFoam. I'm seeking for suggestions how to code this:

$\kappa u_* y (1- \frac{y}{h})\frac{\partial C}{\partial y} + w_0 C = 0$

where $\kappa ,u_* , w_0$ are constants.

is concentration.

Tobermory

August 28, 2021 07:15

The base boundary condition that you want is "mixed" - check out https://www.openfoam.com/documentati...bcs-mixed.html. You'll need to use something like swak4Foam to set your value fractions though.

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