Experimental Investigation of a Pulse Detonation Engine with a Two-Dimensional Ejector
Experimental Investigation of a Pulse Detonation Engine with a Two-Dimensional Ejector
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二维喷射器脉冲爆震发动机的实验研究
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
A. Dean
中科院分区：
文献类型：
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作者：
D. Allgood;E. Gutmark;A. Rasheed;A. Dean
对脉冲爆震发动机(PDE)与引射器的集成进行了参数研究。二维喷射器内部流动的高速阴影可视化为确定集成系统的性能提供了一种定性方法。实验结果表明，喷射器的进气几何形状及其相对于PDE排气面的轴向位置对喷射器的性能非常敏感。当喷射器的入口是等高线时，可以获得显著的卷吸水平，而流动分离降低了具有直而薄的入口唇口的喷射器的卷吸效率
A parametric study into the integration of a pulse detonation engine (PDE) with an ejector was performed. High-speed shadowgraph visualizations of the flow inside the two-dimensional ejector provided a qualitative method of determining the performance of the integrated system. The performance was observed to be sensitive to the inlet geometry of the ejector as well as its axial position relative to the exhaust plane of the PDE. Significant levels of entrainment were obtained when the ejector's inlet was contoured, whereas flow separation reduced entrainment efficiency in the ejector with a straight thin inlet lip