- **OpenFOAM Running, Solving & CFD**
(*http://www.cfd-online.com/Forums/openfoam-solving/*)

- - **Steady State All Mach Numbers Solver**
(*http://www.cfd-online.com/Forums/openfoam-solving/57836-steady-state-all-mach-numbers-solver.html*)

Dear FOAM'ers, do anyone know Dear FOAM'ers, do anyone know about steady state velocity - pressure coupling algo for all mach number (or for Ma>0.3)?
In literature, i found, that for Ma > 0.3 pressure equation becomes convective-diffusive. After looking to OpenFOAM sources i understand that all of them implements only transient algo for pressure equation of form ddt(psi*p) + div(psi*U*p) - laplacian(rho/A * p) = 0 Trying to use relaxation technique for equation div(psi*U*p) - laplacian(rho/A * p) gave nothing (solution diverges) The only way i found is algo in rhoPimpleFoam, but it is still affected by Co number... any help or suggestions appreciated many thanks |

All times are GMT -4. The time now is 09:42. |