The reliable and controllable initiation of the oblique detonation wave at an appropriate location is vital to maintain the optimal thrust of the propulsion systems. A novel structure is proposed in the current research to dynamically control the initiation of the oblique detonation wave in a combustor with a confined cone. The novel structure is based on the traditional single cone, of which the cone angle is ${\theta }_0$. The novel cone utilizes a leading cone with a smaller cone angle (${\theta }_1$) + a larger rear cone angle (${\theta }_2$), where ${\theta }_1<{\theta }_0<{\theta }_2$. A parametric study is conducted based on reactive Euler equations to test the performance of the novel structure on detonation initiation. It is found that the oblique detonation can be stabilized with less total pressure loss and less drag force under a wide range of Mach numbers. It is found that an ‘internal reflection’ of the rear shock wave exists in the first and second reflection of the leading shock wave. The ‘internal reflection’, which has not been reported before, enhances the temperature elevation and pressure elevation in the induction region of the oblique detonation wave. A possible strategy of dynamic control based on the novel structure is proposed. The force exerted on the rear cone is different under different Mach numbers, pushing the rear cone to a state of a certain cone angle. The novel structure performance very well for controllable initiation of the oblique detonation wave.

在适当的位置可靠且可控地产生倾斜爆轰波对于维持推进系统的最佳推力至关重要。在当前的研究中提出了一种新颖的结构，以动态控制带有密闭圆锥形燃烧室的倾斜爆轰波的起爆。新颖的结构基于传统的单锥，其锥角为${\theta }_0$。新型圆锥体采用了锥角较小的前导圆锥体（${\theta }_{\mathrm{1个}}$）+较大的后锥角（${\theta }_2$），在哪里 ${\theta }_{\mathrm{1个}}<{\theta }_0<{\theta }_2$。基于反应性欧拉方程进行了参数研究，以测试新型结构在起爆中的性能。可以发现，在较大的马赫数范围内，斜爆震可以用较小的总压力损失和较小的拉力来稳定。发现在后部冲击波的“内部反射”存在于前部冲击波的第一和第二反射中。以前从未报道过的“内部反射”会增加倾斜爆轰波感应区域的温度升高和压力升高。提出了一种基于新型结构的动态控制策略。在不同的马赫数下，施加在后锥体上的力是不同的，从而将后锥体推到一定的圆锥角状态。