开“窗”结构对环帆伞稳态气动性能的影响  

The Influence of the‘Windows’Structure on the Steady-state Aerodynamic Performance of Ringsail Parachute

作　　者：包文龙 贾贺[1,2] 薛晓鹏[3] 王奇[1] 黄雪姣 高树义 荣伟[1] 吴壮志[4] BAO Wenlong;JIA He;XUE Xiaopeng;WANG Qi;HUANG Xuejiao;GAO Shuyi;RONG Wei;WU Zhuangzhi(Beijing Institute of Space Mechanics&Electricity,Beijing 100094,China;College of Aerospace Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210026,China;School of Aeronautics and Astronautics,Central South University,Changsha 410083,China;School of Computer Science and Engineering,Beihang University,Beijing 100191,China)

机构地区：[1]北京空间机电研究所,北京100094 [2]南京航空航天大学航空学院,南京210016 [3]中南大学航空航天学院,长沙410083 [4]北京航空航天大学计算机学院,北京100191

出　　处：《航天返回与遥感》2022年第1期1-11,共11页Spacecraft Recovery & Remote Sensing

基　　金：飞行器环境控制与生命保障工业和信息化部重点实验室开放课题资助(KLAECLS-E-202004)。

摘　　要：增大伞衣透气性有利于提高降落伞的稳定性,相关研究日益受到重视。文章基于计算流体力学方法对不同透气性下的环帆伞流场开展数值计算,在伞衣构型设计不变的前提下,分别针对位置和数量开展开“窗”结构对环帆伞稳态性能影响的研究。结果表明:开“窗”数量相同时,位置越靠近伞衣底部,阻力系数受影响越小,越不利于提高静稳定性;开“窗”位置相同时,数量增加,阻力系数下降趋势减弱,静稳定性基本不变。上述结果可为环帆伞的设计改进提供参考。The parachute stability can be improved by increasing the porosity of canopy,the correlational research are paid more and more attention.Based on the computational fluid dynamics(CFD)method,the parachute models with different porosity are simulated in this paper.The influence of‘windows’structure on steady-state performance of ringsail parachute is studied respectively for the position and quantity without changing configuration design of the canopy.The result demonstrates that the closer the position is to the bottom of the canopy,the less influence of the drag coefficient,the more unfavorable to improve the static stability with the same number of‘windows’.With the same position of‘windows’,the decrease trend of drag coefficient is weakened with the increase of quantity,the static stability is basically constant.The above conclusions can be applied as a reference for the design refinement of ringsail parachute.

关 键 词：环帆伞 透气性 稳态性能 开“窗”结构 数值模拟 航天返回 

分 类 号：V445.23[航空宇航科学与技术—飞行器设计]