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

- - **Euler computation on hybrid grid**
(*http://www.cfd-online.com/Forums/main/93182-euler-computation-hybrid-grid.html*)

Euler computation on hybrid gridHello,
For some strange reasons, I would like to perform an Euler computation of a NACA0012, M=0.8, a=1.25 on a . hybrid gridObvisouly, I encounter convergence problems :D, stall or crash. Does any of you have some tips in order to enforce convergence ? What I have: - Time-stepping: Euler-Backward, RGK family - Spatial scheme: central scalar, central matrix, and some upwind schemes - Multigrid, Full-multigrid, single grid start-up - Residual smoothing - ... What I tried so far: - deactivate multigrid - increase scalar dissipation coeffs - lowering CFL up to 1 for Euler Backward time-stepping Not working so far... any help would be highly appreciated ! François |

All times are GMT -4. The time now is 17:15. |