准爆轰波传播机理的探索研究

本文分析了准爆轰波的传播过程与物理机制,提出了一个全新的准爆轰波物理模型,开展了理论分析与数值模拟研究.在该物理模型中考虑了超声速流动化学反应放热造成的动量损失,计算结果表明准爆轰波发展过程是热壅塞的.计算与实验结果的定性吻合表明了本文提出的理论模型是正确的,获得的计算结果是合理的,对于准爆轰波物理机理的讨论是有重要意义的.

Preliminary study on the mechanism of quasi-detonation propagation

In this paper, mechanisms of quasi-detonation propagation were theoretically discussed, a new physical model was proposed for the governing equations of quasi-detonations, and one -dimensional numerical simulations were conducted to demonstrate the quasi - detonation phenomenon. In the new physical model, the kinetic energy loss caused by supersonic combustion was considered, as a result, numerical results show that the thermal choking exists in quasi - detonations, and the observable characteristics of quasi - detonations agree well with the previous experimental observations and theoretical analysis. In conclusion, the quasi - detonation model is physically correct, numerical results are reasonable and the study is of fundamental importance for the quasi -detonations research.