关键词: 整体式火箭冲压发动机;突扩型燃烧室;流场;计算方法

Abstract: A numerical simulation of cold flow field in a dump combustor with four 30-degree side inlet and a nozzle is presented in this paper. The segment calculation method is first used for this kind of calculation with complex configuration boundary. The research shows that the segment calculation method can increase the grid utilization, reduce the computation time, eliminate the false diffusion and raise the computational precision. Computational results are fundamentally in accordance with the experimental data.

Key words: Integrate rocket ramjet;Dump combustion chamber;Flow field;Calculation method