超低轨卫星气动阻力特性
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王晓亮, 姚小松, 高爽, 刘国华
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Aerodynamic Drag Characteristics of Ultra-Low Orbit Satellites
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WANG Xiaoliang, YAO Xiaosong, GAO Shuang, LIU Guohua
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表1 圆球阻力系数理论计算结果与理论结果比较
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Tab.1 Comparison of spherical drag coefficient theory and DSMC calculation results
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| s | 理论阻
力系数 | 大气密度×1011/
(kg·m-3) | 温度T/K | 截面积/m2 | 来流速度/
(m·s-1) | DSMC
阻力/N | DSMC
阻力系数 | 误差/% | | 5 | 2.3155 | 3.11 | 976 | 0.0314159 | 3742.732 | 0.00001510 | 2.2077845 | -4.65 | | 6 | 2.2521 | 3.11 | 976 | 0.0314159 | 4491.278 | 0.00002126 | 2.1586418 | -4.15 | | 7 | 2.2094 | 3.11 | 976 | 0.0314159 | 5239.824 | 0.00002857 | 2.1312483 | -3.54 | | 8 | 2.1788 | 3.11 | 976 | 0.0314159 | 5988.371 | 0.00003692 | 2.1086354 | -3.22 | | 9 | 2.1559 | 3.11 | 976 | 0.0314159 | 6736.917 | 0.00004644 | 2.0956899 | -2.79 | | 10 | 2.1381 | 3.11 | 976 | 0.0314159 | 7485.463 | 0.00005711 | 2.0875266 | -2.37 |
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