[corenc]

Hi all,

I am a newbie of OpenFOAM and CFD. I have a question of my first test:

I used potentialFOAM to solve a simple channel flow. The slip bounday condition seems work well. Then I change the boundary to no-slip , ie, set the velocity on boundary to fixedvalue zero.

Then I get a very strange result.

The velocity field is nearly the same as the one of slip condition. I can not see a velocity profile that smoothly ramps down to zero to the boudnaries. Velocity ramps down only in those triangles that has edges (vertieces) on boundaries. So it shoul not be correct.

Could you tell me what's the possible reason leading to this error ?

Thanks in advance.