液滴对降落伞织物冲击的数值研究  

Numerical Simulations on Impact of Droplet on Parachute Fabric

作　　者：安蕾[1] 郭琪磊[2] 孙鹏[2] AN Lei;GUO Qi-lei;SUN Peng(Simulator Training Center,Civil Aviation Flight University of China,Guanghan 618307,China;Aviation Engineering Institute,Civil Aviation Flight University of China,Guanghan 618307,China)

机构地区：[1]中国民用航空飞行学院模拟机中心,广汉618307 [2]中国民用航空飞行学院航空工程学院,广汉618307

出　　处：《科学技术与工程》2019年第24期405-409,共5页Science Technology and Engineering

基　　金：中国民用航空飞行学院校级科研基金(18ZB0685)资助

摘　　要：为了研究液滴对降落伞织物的冲击作用,分别建立了液滴的流场网格模型和织物的结构网格模型。利用试验得到织物的透水率参数,通过双向流固耦合的方法,进行了不同工况下液滴冲击织物的数值仿真。分析了液滴外形的变化特征以及织物所受撞击力的影响因素。将数值计算结果和试验结果进行对比,结果表明:数值计算结果与试验结果基本一致,验证了方法的可行性和正确性。In order to study the impact of droplet on parachute fabrics,a flow field model of droplet and a structural model of fabrics was established respectively.Water permeability parameters of fabrics was obtained by experiments,and the numerical simulation of droplet impact on fabric under different working conditions were carried out by the method of two-way fluid structure interaction.The characteristics of droplet shape changing and the influence factors of impact force on fabrics were analyzed.The numerical results were compared with experiment.The results indicate that the numerical results are in good agreement with the experimental one and the feasibility and correctness of this method is verified.

关 键 词：液滴 织物 流固耦合 撞击力 

分 类 号：V244.216[航空宇航科学与技术—飞行器设计]