[nimasam]

Hello Dear foamers

In my problem, BC for velocity component (u,v,w) is:

du/dz=A*dT/dx,
dv/dz=A*dT/dy,
w=0

any hint please, to write above BC


1- is it possible to write such BC with groovyBC?
2- my search, shows the closet BC for my condition is directionMixed, but i have no idea how to change it to be compatible with my new conditions

[cheng1988sjtu]

Did you try to use groovcBCDirection instead?

I also want to do something like this, and I found that groovcBCDirection can do what you want. you may find this link useful:

https://github.com/wyldckat/swak4foa...edBendPipe/0/U