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首页> 外文期刊>International Journal of Turbo and Jet Engines >Influencing Factors on the Performance of Pulse Detonation Engine at Test Bench
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Influencing Factors on the Performance of Pulse Detonation Engine at Test Bench

机译：影响试验台脉冲爆震发动机性能的因素

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摘要

Unsteady operation of valveless pulse detonation engine results in unsteady gas dynamics of air inflow. In this paper, a simplified model has been developed to evaluate actual performance of pulse detonation engine with consideration of intake condition. The volume of plenum chamber, inflow area of pulsed detonation chamber and the operation frequency are considered as influencing factors on pulsed detonation chamber thrust performance. The simulation results show bigger plenum chamber volume leads to less inflow perturbation of pulsed detonation chamber. If the gas state of inflow is not determined by unsteady character, the negative thrust of pulsed detonation chamber will decrease with the increase in frequency. But when unsteady character has an effect on inflow, the negative thrust of pulsed detonation chamber increases with the increase in frequency. The experimental results of pulse detonation engine on test bench confirmed the simulation results.
机译：无阀脉冲爆震发动机的不稳定运行会导致空气流入的气体动力学不稳定。在本文中，开发了一个简化模型来评估考虑进气条件的脉冲爆震发动机的实际性能。增压室的容积，脉冲爆震室的流入面积和工作频率是影响脉冲爆震室推力性能的因素。仿真结果表明，更大的增压室容积导致更少的脉冲爆震室流入扰动。如果流入的气体状态不是由不稳定特性决定的，则脉冲爆震室的负推力会随着频率的增加而减小。但是，当不稳定特性对流入有影响时，脉冲爆震室的负推力会随着频率的增加而增加。脉冲爆震发动机在试验台上的实验结果证实了仿真结果。

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