[jimteb]

Hi,

Is there a difference between the wall and patch boundaries when considering inviscid flow (i.e. mu=0, slip at walls for velocity, no turbulence model)? Would I be right to say that the wall and patch types have the same effect under these conditions?

To test this I ran the pitzDaily case using rhoPimpleFoam, with mu=0, slip at the "wall" for velocity, and no turbulence model. This was ran separately with patch and wall boundaries for the "wall". I could not see any difference between the two, where comparing the pressure and velocity contours. However, I am not sure whether this will be the case in other scenarios.

Thanks

[piu58]

You need the wall boundary only if you want to use wall functions.

[jimteb]

Originally Posted by piu58

You need the wall boundary only if you want to use wall functions.

Thanks, I understand your point. I am still curious as to whether the wall and patch boundaries are essentially equivalent for inviscid flow?