BC in which to set gradient for, or access, different species Y -- CFD Online Discussion Forums

April 1, 2015, 11:06	BC in which to set gradient for, or access, different species Y	#1
Athanassios New Member Athanassios Join Date: Nov 2014 Posts: 5 Rep Power: 12	Hi peeps, I need to implement a boundary condition (fvPatchField) for reactingFoam, where the gradient for one species is calculated and due to reactions on that boundary other species are affected. Let's say, I have SiH4 (Silan) and this is reacting on that boundary so that Si sticks on it (=> inlet, let's say on a wafer) and 2H2 is emitted (=> outlet). How can I implement such a boundary condition? How can I access and set the gradient for another species (one (H2) or more, depending on the reaction) from one boundary condition? Would it be better to do that in a modified reactingFoam solver? How could I do that? I would be very very happy to get some answers to this question! Many thanks in advance!! Athanassios

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