- **Main CFD Forum**
(*https://www.cfd-online.com/Forums/main/*)

- - **Bc for velocity splitting
**
(*https://www.cfd-online.com/Forums/main/4286-bc-velocity-splitting.html*)

Bc for velocity splitting
Dear all,
I would like to compute an incompressible turb. jet by LES and after that splitting the velocity field u = {u_1, u_2, u_3} into a potential and rotating part: u = rot psi + grad phi after applying the div - operator on this equ., I end up with div u = 0 = laplace phi Can anybody say how to find some usefull bc for this problem. Outside the jet flow I have u = 0 and also phi = 0, but at the jet outflow and inflow, I can not say phi = 0, otherwise I had the trivial solution ( with homogenous dirichlet at the bc) phi =0 everywhere which is obviously wrong. Has anybody experience in this matter or can refer some literature. thanks in advance Matthias |

All times are GMT -4. The time now is 22:01. |