| Under the two-dimensional body-fitted coordinate, Large-eddy simulation(LES) of turbulent chemically reacting flows in the model afterburner with the V-gutter flame holder was carried out by using parallel computing. The two-dimensional body-fitted grid was created by method of partial differential equation and zonal method. The k-equation subgrid-scale model was used to simulate the turbulent viscosity, the chemical reaction rate was determined by the subgrid EBU combustion model and the heat flux model was employed for the heat flux. A parallel program running on the MPI platform was developed, featuring dynamical memory-allocating. The parallel program was proved to be correct in that the parallel computing results were well in agreement with the results obtained using the sequential program. Three sets of grid of different Size(2003×191,2003×381,402×381 respectively )was created for the purpose of testing of speedup and the results were satisfactory.The results of the numerical simulation can provide useful imformation for the optimum design of the afterburner. Finally Some basic work concerning the post-processing of the parallel computing results was done. A friendly user-interface is designed. The computing and the real-time visualization of the result can be done on different computers on the network via the client-server programming model.
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