共用喷管多管爆震发动机工作过程数值模拟

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。

Simulation of multitube pulse detonation engines with common nozzle

To investigate the flow-field interaction among detonation tubes sharing a common nozzle in a multi-tube pulse detonation,multi-tube PDE with different nozzle throat area and with different detonation tube number were simulated by CFD and hydrogen-oxygen mixture was used.The results indicated that the strength of the tube-to-tube interactions can be decreased through increase nozzle throat area or increase detonation tube number.The numerical simulation results provided theory and practice for optimizing mu...