中文摘要：

三维(3D ) 反应在一间上演超声的燃烧室的流动数字地被检验。以便获得最佳溪流明智的旋涡，当秒阶段墙注射与第一阶段的中央神气注射结合了，一个打扫斜面注射者被选择。二阶段的注射的表演与上演一个的注射的相比，当神气被使在两个盒子中安装了时。二阶段的注射能在墙附近充分利用剩余氧并且释放更多的热。秒阶段注射进一步下游地在墙注射以后在一个升起的墙压力和好燃烧效果在隔离乾和结果避免强壮的冲击波。因此，它允许更多的燃料没有引起，被注入超声的燃烧室热窒息。从秒阶段的平行注射把斜面表演弄低总计压力损失和最好燃烧的效率，与另外的注射角度相比。

英文摘要：

The three-dimensional （3D） reacting flow in a staged supersonic combustor is examined numerically. In order to obtain the optimum stream-wise vortices, a swept ramp injector is chosen as the second-stage wall injection combined with the first-stage central strut injection. The performance of the two-staged injection is compared with that of a one-staged injection, while the strut is kept installed in both cases. The two-staged injections can make full use of the residual oxygen near the wall and release more heat. The second-stage injection further downstream avoids the strong shock waves in the isolator and results in a rising wall pressure and good burning effects after the wall injection. Therefore, it allows more fuel to be injected into the supersonic combustor without causing thermal choking. Parallel injection from the second-stage swept ramp shows low total pressure loss and the best burning efficiency, compared with the other injection angles.