[Samuel LEE]

Hi

i wanna set movingwall velocity boundary condition using mixed BC.
but i don`t know how to use it exactly.

what i want to give BC is this,
u (zeroGradient, 1 , 0)
and i made like below
------------------------------------
type Mixed;
refValue uniform (0 1 0);
refGradient uniform (0 0 0);
valueFraction uniform 0.5;
-------------------------------------

Because i wanna mix 50:50 zeroGradient and fixedValue,
l gave valueFraction 0.5

Could you correct upper?
and
what is different Mixed and directionMixed ?

Thank you
Samuel.,

[yongxiang]

Hello Sammuel,
have you solved this problem ? Setting both gradient and fixed value for velocity components.
I currently also want to know how to setup up such BC. Would you mind to tell me how you did it?
regards
YX