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Airbreathing rotating detonation wave engine cycle analysis

机译:呼吸旋转爆轰波发动机循环分析

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摘要

A cycle analysis model for an airbreathing, rotating detonation wave engine (RDE) is presented. The engine consists of a steady inlet system with an isolator which delivers air into an annular combustor. A detonation wave continuously rotates around the combustor with side relief as the flow expands towards the nozzle. A model for the side relief is used to find the pressure distribution around the combustor. Air and fuel enter the combustor when the rarefaction wave pressure behind the detonation front drops to the inlet supply pressure. To create a stable RDE, the inlet pressure is matched in a convergence process with the average combustor pressure by increasing the annulus channel radial width with respect to the isolator channel. Performance of this engine is considered using several parametric studies and compared with rocket-mode computational results. A hydrogen-air RDE reaches a specific impulse of 3800 s and can reach a flight speed of Mach 5.
机译:提出了一种呼吸旋转爆轰波发动机(RDE)的循环分析模型。发动机由带隔离器的稳定进气系统组成,该隔离器将空气输送到环形燃烧器中。随着气流向喷嘴扩展,爆震波绕着燃烧器连续旋转,并带有侧面释放。侧面泄压模型用于查找燃烧室周围的压力分布。当爆炸前部后面的稀疏波压力下降到进气口供应压力时,空气和燃料进入燃烧室。为了产生稳定的RDE,在进气过程中,通过增加环形通道相对于隔离通道的径向宽度,使入口压力与平均燃烧器压力相匹配。该引擎的性能是通过一些参数研究得出的,并与火箭模式的计算结果进行了比较。氢空气RDE达到3800 s的特定脉冲,可以达到5马赫的飞行速度。

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