论文部分内容阅读
为研究共用喷管多爆震管间爆震流场的相互作用,利用CFD商业软件,选用通用有限速率模型,以氢气和氧气混合物为例,对不同喷管喉部面积和不同爆震管数的共用喷管多管爆震发动机工作过程进行了数值模拟,并对其性能进行了比较与分析。计算结果表明,喷管喉部面积和爆震管数目对爆震管间的相互影响产生很大影响,模拟结果可为多爆震管脉冲爆震发动机的设计提供理论基础。
In order to study the interaction between the detonation flow field and the multi-detonation tube in a common nozzle, the commercial finite element model of CFD and the mixture of hydrogen and oxygen were used to study the influence of different nozzle throat area and detonation tube number Of the common nozzle multi-tube detonation engine numerical simulation of the work process, and its performance were compared and analyzed. The results show that the laryngeal area of the nozzle and the number of detonation tubes have a great influence on the interaction between the detonation tubes. The simulation results can provide the theoretical basis for the design of the detonation tube detonation engine.