| 过渡区球头气动力特性DSMC仿真研究 |
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| 引用本文： | 吴雄,陈伟芳,石于中.过渡区球头气动力特性DSMC仿真研究[J].航天返回与遥感,2002,23(3):1-5. |
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| 作者姓名： | 吴雄 陈伟芳 石于中 |
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| 作者单位： | 国防科技大学航天与材料工程学院,长沙,410073 |
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| 摘 要： | 采用DSMC（Direct Simulation Monte-Carlo）方法模拟三维球头过渡区流动。文章给出了球头绕流流场的温度与压力分布图,以及在不同Knudsen数、不同马赫数条件下球头表面压力系数分布曲线,并将阻力系数模拟结果与桥函数公式进行了比较分析。
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| 关 键 词： | DSMC方法 桥函数 过渡区流动 |
| 文章编号： | 1009-8518(2002)03-0001-05 |
| 修稿时间： | 2002年5月25日 |
Research On Aerodynamic Charcteristics Of The Sphere In Transitional Region By Dsmc Method |
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| Wu Xiong,Chen Weifang,Shi Yuzhong.Research On Aerodynamic Charcteristics Of The Sphere In Transitional Region By Dsmc Method[J].Spacecraft Recovery & Remote Sensing,2002,23(3):1-5. |
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| Authors: | Wu Xiong Chen Weifang Shi Yuzhong |
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| Abstract: | In the paper,the transitional flow over a sphere is simulated by DSMC method.The isotherm and pressure vector are shown and the pressure coefficient distribution curves of the sphere surface are also presented at different Knudsen numbers and different Mach numbers. Comparison analysis of the drag coefficient is carried out at last between simulated results and approximation data estimated by the bridging-function formula. |
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| Keywords: | DSMC method Bridging-function Yransitional flow |
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