| 冲压发动机突扩燃烧室回流旋涡“热缩”效应的研究 |
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| 引用本文： | 王卫东,过增元,张振家.冲压发动机突扩燃烧室回流旋涡“热缩”效应的研究[J].推进技术,1996,17(1):8-12. |
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| 作者姓名： | 王卫东 过增元 张振家 |
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| 作者单位： | 航天工业总公司３１所 |
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| 摘 要： | 对均匀混气进口突扩燃烧室进行了数值研究，比较了燃烧状态和非燃烧状态突扩回流区。发现燃烧状态的回流区长度比非燃烧状态减小了３６％（混气当量比为０．６５）。分析了燃烧引起回流区长度减小的两个重要原因：温度梯度对速度矢量的偏折和加速作用以及热阻力作用。
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| 关 键 词： | 突扩燃烧室，流动分布，热效应，数值模拟 |
COMBUSTION EFFECT ON RECIRCULATION ZONE IN A RAMJET DUMP COMBUSTOR |
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| Wang Weitong,Guo Zengyuan and Zhang Zhenjia.COMBUSTION EFFECT ON RECIRCULATION ZONE IN A RAMJET DUMP COMBUSTOR[J].Journal of Propulsion Technology,1996,17(1):8-12. |
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| Authors: | Wang Weitong Guo Zengyuan and Zhang Zhenjia |
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| Institution: | he 31st Research Iust., Beijing, 100074;he 31st Research Iust., Beijing, 100074;he 31st Research Iust., Beijing, 100074 |
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| Abstract: | numerical study is conducted to investigate the combustion effect on recirculationzone in a ramjet combustor. The results show that heat addition to such flow will lead to the reductiono f CRZ length because of velocity vector depending on temperature gradient and pressure gradient. |
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| Keywords: | Dump combustion chamber Flow distribution Thermal response Numerical simulation |
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