Numerical Flow Simulation of a Reusable Sounding Rocket during Turnover
Numerical Flow Simulation of a Reusable Sounding Rocket during Turnover
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DOI：
10.2514/6.2011-3367
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发表时间：
2011-06
期刊：
影响因子：
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通讯作者：
K. Kuzuu;K. Kitamura;Keiichiro Fujimoto;E. Shima
中科院分区：
文献类型：
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作者：
K. Kuzuu;K. Kitamura;Keiichiro Fujimoto;E. Shima
采用数值模拟方法研究了可重复使用探空火箭的气动特性。特别是，我们专注于在周转过程中的动态分析。这里，翻转对应于在返回地球期间从滑翔姿态到垂直着陆姿态的运动。本研究的数值代码是基于一个单元为中心的有限体积可压缩流求解器，包括移动网格系统。为了处理非定常的大规模分离流，本文采用了DDES湍流模型。通过静、动态分析，确定了转速和雷诺数对气动特性的影响。
Aerodynamic characteristics of a reusable sounding rocket are investigated by numerical flow simulation. Especially, we focus on the dynamic analysis during turnover. Here, a turnover corresponds to the motion from a gliding attitude to a vertical landing one during return to the earth. The numerical code for this study is based on a cell-centered finite volume compressible flow solver including a moving grid system. In order to treat an unsteady and massive separated flow, a DDES turbulence model is applied to this simulation. From the results of static and dynamic analyses , we could confirm the effect of rotational speeds and Reynolds number on aerodynamic characteristics.