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低轨卫星的气动特性预测与分析

黄飞 赵波 程晓丽 吕俊明

黄飞, 赵波, 程晓丽, 吕俊明. 低轨卫星的气动特性预测与分析[J]. 空间科学学报, 2015, 35(1): 69-76. doi: 10.11728/cjss2015.01.069
引用本文: 黄飞, 赵波, 程晓丽, 吕俊明. 低轨卫星的气动特性预测与分析[J]. 空间科学学报, 2015, 35(1): 69-76. doi: 10.11728/cjss2015.01.069
HUANG Fei, ZHAO Bo, CHENG Xiaoli, LÜ Junming. Numerical Investigation of Aerodynamics on Low Earth Orbit Satellite[J]. Journal of Space Science, 2015, 35(1): 69-76. doi: 10.11728/cjss2015.01.069
Citation: HUANG Fei, ZHAO Bo, CHENG Xiaoli, LÜ Junming. Numerical Investigation of Aerodynamics on Low Earth Orbit Satellite[J]. Journal of Space Science, 2015, 35(1): 69-76. doi: 10.11728/cjss2015.01.069

低轨卫星的气动特性预测与分析

doi: 10.11728/cjss2015.01.069
详细信息
  • 中图分类号: V211.25

Numerical Investigation of Aerodynamics on Low Earth Orbit Satellite

  • 摘要: 针对低轨卫星高空自由分子流区的飞行环境特征,采用GOCE卫星典型弹道下的气动数据对DSMC仿真方法进行了算例验证,并就CLL模型下不同物面反射系数对GOCE卫星流场特征及气动特性的预测差异进行了对比分析,给出不同物面反射系数对卫星阻力预测的定量差异.结果表明,本文方法所得气动阻力与文献结果吻合较好,能够在此飞行区域给出合理的气动阻力;当反射系数从0.1逐渐变化至1.0时,卫星流场的驻点区域、尾部方向舵区域压力分布逐渐从带状结构向扇形结构过渡;在所研究的工况下,随着物面反射系数的增加,摩阻系数预测结果偏大,压阻系数预测结果偏小,总阻力先增加后减小,约在反射系数0.8附近达到最大.

     

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出版历程
  • 收稿日期:  2013-11-04
  • 修回日期:  2014-03-22
  • 刊出日期:  2015-01-15

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