| 颗粒相对固体火箭发动机稳定性影响的大涡模拟研究 |
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| 引用本文： | 范兵,关正西.颗粒相对固体火箭发动机稳定性影响的大涡模拟研究[J].上海航天,2008,25(6). |
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| 作者姓名： | 范兵 关正西 |
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| 作者单位： | 第二炮兵工程学院,陕西,西安,710025 |
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| 摘 要： | 为研究颗粒相对固体火箭发动机(SRM)稳定性的影响,在考虑颗粒燃烧和两相间耦合的条件下时模型固体火箭发动机内部多相湍流进行了大涡模拟.结果发现:在颗粒相的作用下,发动机上游形成了强度很小的小尺度湍流;在主燃烧室可观察到颗粒相具抑制大尺度湍流向流场核心区和近壁区渗透的作用,抑制作用受颗粒大小和含量的影响.颗粒相可增加小尺度的湍流扰动,但同时也抑制了主燃烧室内大尺度湍流的不稳定性.
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| 关 键 词： | 固体火箭发动机 稳定性 大涡模拟 湍流 多相流 颗粒相 |
Investigation on Influence of Particular Phase to Stability of Solid Rocket Motor by Large Eddy Simulation |
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| FAN Bing,GUAN Zheng-xi.Investigation on Influence of Particular Phase to Stability of Solid Rocket Motor by Large Eddy Simulation[J].Aerospace Shanghai,2008,25(6). |
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| Authors: | FAN Bing GUAN Zheng-xi |
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| Institution: | FAN Bing,GUAN Zheng-xi(The Second Artillery Engineering College,Xi\'an Shaanxi 710025,China) |
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| Abstract: | In order to investigate the influence of particular phase to stability of solid rocket motor,large eddy simulation was performed on model solid rocket motor in consideration of burning particles and two ways coupling between the two phases in this paper.The results showed that weak small scale turbulence was formed in the upstream motor because of the particular phase,and the particular phase had a role of inhibiting penetration of turbulence towards central core and near wall region in main chamber.The lev... |
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| Keywords: | Solid rocket motor Stability Large eddy simulation Turbulence Multiphase flow Particular phase |
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