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Implementation of Robin boundary condition in OpenFoam

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August 28, 2021, 00:41	Implementation of Robin boundary condition in OpenFoam	#1
sourav8016 New Member Sourav Hossain Join Date: Mar 2019 Posts: 25 Rep Power: 7	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. Last edited by sourav8016; August 28, 2021 at 00:43. Reason: previous one was incomplete

August 28, 2021, 07:15		#2
Tobermory Senior Member Join Date: Apr 2020 Location: UK Posts: 669 Rep Power: 14	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. frantov likes this.

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