[tjliang]

Hello Foamers,

I want to define in my case file a boundary condition of Vel( electric potential) at the solid-fluid interface which depends on the T( temperature) value at exact the same point(namely , also in interface). I use ChtmultiregionFoam as my solver, is it possible to achieve that, namely boundary condition of A field related with the B Field?

I haven't used GroovyBC but heard of that. In some documentation i see the following:mapped(fieldName) For a mapped patch get the value of the field “on the other side” (P). Does it mean I can use the expression like mapped(T) in the interface boundary of Vel? I really lack much knowledge of that. i will be appreciated if someone offer me hints.

Thanks in advance,

Peng