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首页> 外文期刊>Journal of Spacecraft and Rockets >Quasi-One-Dimensional Numerical Analysis of Payload Venting of Satellite Launch Vehicle
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Quasi-One-Dimensional Numerical Analysis of Payload Venting of Satellite Launch Vehicle

机译：卫星运载火箭有效载荷排放的准一维数值分析

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摘要

The new reduced spatial dimension of a payload venting of a satellite launch vehicle was proposed and validated. The central idea of the present approach is based on the quasi-one-dimensional compressible inviscid equations. The governing flow equations satisfy the conservation laws. The quasi-one-dimensional model takes into consideration the volume of the air in the compartment at the time of launch, area of the vent holes, and time-dependent ambient conditions. The compartment air is vented into the quiescent air. The numerical simulation of the Euler equations does not require information of the discharge coefficient of the vent hole. Comparisons were presented between numerical simulation with the compressible and isentropic flow, and it is shown that the quasi-one-dimensional model provides good accuracy.
机译：提出并验证了新的减小的卫星运载火箭有效载荷通风口的空间尺寸。本方法的中心思想是基于准一维可压缩无粘性方程。控制流方程满足守恒定律。准一维模型考虑了发射时隔室中的空气量，通风孔的面积以及随时间变化的环境条件。车厢内的空气排入静态空气。欧拉方程的数值模拟不需要通风孔的排放系数信息。对可压缩和等熵流的数值模拟进行了比较，结果表明准一维模型具有良好的精度。

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