The application of parallel computation to the compressible turbulence with LES

Parallel computation of the compressible turbulence with LES was performed with computational fluid dynamics. The Message Passing Interface (MPI) parallel environment was constructed based on Linux OS, and the corresponding parallel computational program with LES was developed by adopting the C Language. The approximate Reimann solver and two-step Runge-Kutta time-advance were adopted to solve the Favre-filtered N-S equations. The computational domain was partitioned uniformly into several sub-domains based on multi slave model and the load balance, to improve the parallel computational efficiency. And then the comparison of parallel speedup, parallel efficiency under kinds of dividing-domain methods was done. The numerical results show that the parallel computational program and method are acceptable, and could be further applied to the computation of the more complex turbulence.