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Onset separation aerodynamics of Crew Module from Crew Escape System

机译:船员逃生系统船员模块的起始分离空气动力学

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Aerodynamic characteristics of Crew Module (CM) during its separation from the Crew Escape System (CES) are essential to carry out separation dynamics analysis for confirming collision-free separation. As CM is at the base of CES, it has to clear the complex wake flow that prevails in the aft region. A 1 : 10-scale wind tunnel model is tested at 45 m/s freestream velocity in Indian Institute of Science, Bengaluru low-speed tunnel. The interaction of CM with the base flows is studied for different attitude conditions in terms angle of attack, longitudinal and lateral movements. Results indicate that CM is recovered from forebody influence beyond X/D = 2, and it experiences reverse flow till it moves to X/D = 1.4D. Stability characteristics of CM are also analysed.
机译:乘员舱(CM)与乘员逃生系统(CES)分离期间的空气动力学特性对于进行分离动力学分析以确认无碰撞分离至关重要。由于CM位于CES的底部,它必须清除船尾区域普遍存在的复杂尾流。一个1:10比例的风洞模型在班加罗尔印度科学研究所低速风洞中以45 m/s的自由流速度进行了测试。从攻角、纵向和横向运动的角度研究了不同姿态条件下CM与基流的相互作用。结果表明,CM从X/D=2以上的前体影响中恢复,并经历反向流动,直到移动到X/D=1.4D。分析了CM的稳定性特征。

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