[panda60]

Dear all,
I am confused about kqRWallFunction.
I know k is turbulent kinetic energy, and R is Renolds stress. what's the meaning of q ?

Because in buoyant flow, temperature also need a wallfunction like velocity. But I don't know how to use this in OpenFOAM.

Thanks.

[romant]

Originally Posted by panda60

Dear all,
I am confused about kqRWallFunction.
I know k is turbulent kinetic energy, and R is Renolds stress. what's the meaning of q ?

Because in buoyant flow, temperature also need a wallfunction like velocity. But I don't know how to use this in OpenFOAM.

Thanks.

OpenFOAM has a turbulence model called qZeta, in which q = k^(1/2), which is set with the same wall function. The wall function just sets k, q and R to 0 at the wall.