| 降落伞主充气阶段的动态仿真及流场分析 |
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| 引用本文： | 潘星,胡利,曹义华.降落伞主充气阶段的动态仿真及流场分析[J].航空动力学报,2008,23(1):87-93. |
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| 作者姓名： | 潘星 胡利 曹义华 |
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| 作者单位： | 北京航空航天大学 航空科学与工程学院, 北京 100083 |
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| 基金项目： | 国家自然科学基金资助项目(10577003) |
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| 摘 要： | 建立了有顶孔的平面圆形降落伞的轴向和径向动量方程,使用数值方法计算出选定的降落伞在主充气过程中各种参数的变化,对降落伞的主充气过程进行了动态仿真.在使用动量方程计算出的的充气模型的基础上,利用降落伞在各个时间结点时的外形和下降速度等相关数据,采用计算流体力学的方法和准定常假设,对降落伞充气过程中的流场进行了模拟和分析,对降落伞充气过程的机理及流场衍变情况进行了探讨.
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| 关 键 词： | 降落伞 充气 仿真 计算流体力学 |
| 文章编号： | 1000-8255(2008)01-0087-07 |
| 收稿时间： | 2006/12/7 0:00:00 |
| 修稿时间： | 2006年12月7日 |
Analysis of dynamic simulation and fluid field of parachute in inflation stage |
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| PAN Xing,HU Li and CAO Yi-hua.Analysis of dynamic simulation and fluid field of parachute in inflation stage[J].Journal of Aerospace Power,2008,23(1):87-93. |
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| Authors: | PAN Xing HU Li and CAO Yi-hua |
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| Institution: | School of Aeronautic Science and Technology, Beijing University ofAeronautics and Astronautics, Beijing 100083, China |
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| Abstract: | The axis-radial momentum equations of circular flat parachute were established the changing parameters of a selected parachute were calculated for dynamic simulation of the inflation process.Accoroling to the inflation model calculated by the momentum equation,based on the shape and descent velocity of the parachute at fixed nodes of time,the fluid field was simulated and analyzed according to computational fluid dynamics method under quasi-steady hypothesis.The mechanism of inflation and evolvement of fluid field were analyzed. |
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| Keywords: | parachute inflation simulation CFD(computational fluid dynamics) |
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