Influence of difference schemes and limiters on numerical simulation of double-ellipsoid

In order to study the effect of difference schemes and limiters, on the basis of Navier-Stokes equation, the flow fields around double-ellipsoid were simulated numerically using Roe scheme of FDS and van Leer scheme of FVS. The limiters of min mod, van Leer, Osher_C under Roe difference scheme were also simulated. The effects of different difference schemes and limiters on the simulation results of double-ellipsoid's aerodynamics and aerothermodynamics were researched and the flow fields of double-ellipsoid were analyzed. The results indicate that the effect of difference schemes and limiters on pressure is less than heat flux and Ree scheme with minmod limitors can obtain high accuracy results.