| 高空模拟试车台主被动引射方案数值研究 |
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| 引用本文： | 陈健,吴继平,王振国,徐万武. 高空模拟试车台主被动引射方案数值研究[J]. 固体火箭技术, 2011, 34(1): 126-130 |
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| 作者姓名： | 陈健 吴继平 王振国 徐万武 |
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| 作者单位： | 国防科技大学,航天与材料工程学院,长沙,410073 |
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| 摘 要： | 采用二维轴对称雷诺平均方程和Spalart-Allmaras湍流模型,对一大面积比火箭发动机高空模拟试车台在不同引射方案下发动机启动至稳定运行过程中不同室压下的流场结构进行了数值模拟.空间上采用二阶迎风格式进行耦合求解,时间上采用显式Runge-Kutta方法进行迭代推进.结果表明,采用启动段主动引射、主级段被动引射的...
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| 关 键 词： | 火箭发动机 高空模拟试车台 主动引射 被动引射 数值模拟 |
Numerical study on positive and passive ejection for high altitude test facility |
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| CHEN Jian,WU Ji-ping,WANG Zhen-guo,XU Wan-wu. Numerical study on positive and passive ejection for high altitude test facility[J]. Journal of Solid Rocket Technology, 2011, 34(1): 126-130 |
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| Authors: | CHEN Jian WU Ji-ping WANG Zhen-guo XU Wan-wu |
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| Affiliation: | CHEN Jian,WU Ji-ping,WANG Zhen-guo,XU Wan-wu (College of Aerospace and Material Engineering,National University of Defense Technology,Changsha 410073,China) |
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| Abstract: | The flow-field during ignition in a high altitude test facility for rocket engine of large area-ratio nozzle were investigated by using two-dimensional axial symmetry average Reynolds equations and the Spalart-Allmaras turbulent model.The study used various ejecting schemes and chamber pressures.Two-order upstream scheme and explicit Runge-Kutta algorithm were used to solve these equations.The results show that using positive ejection on starting phase while using passive ejection on operational phase could... |
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| Keywords: | rocket motor altitude simulation test facility positive ejection passive ejection numerical simulation |
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