| 火箭级间热分离过程耦合数值模拟 |
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| 引用本文： | 高立华,张兵,权晓波,符松.火箭级间热分离过程耦合数值模拟[J].清华大学学报(自然科学版),2011(4):462-466. |
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| 作者姓名： | 高立华 张兵 权晓波 符松 |
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| 作者单位： | 清华大学航天航空学院;北京宇航系统工程研究所; |
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| 基金项目： | 国家自然科学基金资助项目(90505005) |
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| 摘 要： | 为了研究某火箭一、二级级间热分离的级间流动机理和分离过程的安全性,采用Chimera/Overset方法并结合N-S方程和刚体动力学方程,以流动和刚体动力学耦合计算的方式对该多级火箭的一、二级级间热分离过程进行了数值模拟。模拟结果显示,轴对称工况分离过程的流动存在剧烈的震荡,而二级喷管有偏转工况分离过程的流动比较平稳,...
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| 关 键 词： | 多级火箭 级间分离 Chimera/Overset方法 |
Coupled numerical simulation of the multi-stage rocket stage separation |
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| GAO Lihua,ZHANG Bing,QUAN Xiaobo,FU Song.Coupled numerical simulation of the multi-stage rocket stage separation[J].Journal of Tsinghua University(Science and Technology),2011(4):462-466. |
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| Authors: | GAO Lihua ZHANG Bing QUAN Xiaobo FU Song |
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| Institution: | GAO Lihua1,ZHANG Bing2,QUAN Xiaobo2,FU Song1(1.School of Aerospace,Tsinghua University,Beijing 100084,China,2.Beijing Institute of Space System Engineering,Beijing 100076,China) |
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| Abstract: | Coupled CFD and rigid body dynamics simulation was made using Chimera/Overset method to study the dynamic and aerodynamic characteristics of the stage separation of a multi-stage rocket.An axisymmetric case without the second stage nozzle rotation and a three-dimensional case with the second stage nozzle rotation were used to investigate the flow mechanism and safety of the stage separation.Simulation results show that the flow fields in the axisymmetric case features significant oscillation while those of ... |
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| Keywords: | multi-stage rocket stage separation Chimera/Overset method |
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