软式加油过程中软管鞭打现象数值模拟研究  

Numerical Simulation of Hose Whip Phenomenon in Hose-drogue Aerial Refueling

作　　者：陈乐乐[1] 刘学强[1] CHEN Le- le LIU Xue- qiang(Department of Aerodynamics, Nanfing University of Aeronautics and Astronautics, Nanfing 210016, China)

机构地区：[1]南京航空航天大学空气动力学系,江苏南京210016

出　　处：《航空计算技术》2016年第6期56-59,共4页Aeronautical Computing Technique

基　　金：江苏省普通高校研究生科研创新计划资助项目(CXLX13_133);中央高校基本科研业务费专项资金资助

摘　　要：对空中加油过程中软管锥套系统产生的鞭打现象进行了数值模拟。流场计算中的空间离散采用Osher格式,紊流模型采用S-A一方程模型;运用"刚杆-球铰"模型离散方法对软管锥套系统建模,建立了软管多体系统模型并推导其运动控制方程;采用一类基于相邻单元搜索算法,通过搜寻软管节点所在加油机尾流场网格的宿主单元,建立软管微段气动力与流场的联系。运用方法对软管锥套系统的动态特性进行了仿真,结果与国内外飞行试验结果相吻合。The hose whipping phenomenon in hose- drogue aerial refueling was simulated based on a high - efficient neighbor- to- neighbor algorithm. The Osher scheme and S- A turbulence model are employed to solve the compressible Navier- Stokes equations, and the hose is discretized into a series of ball hinges linked by massless rigid links which form a multi- body system, the kinematical and dynamic equations are derived for the system. The numerical model is used to simulate hose- drogue system dynamics in mul- tiple conditions, the results show a good correlation with previously reported flight- test data in open litera- ture and the application of neighbor- to- neighbor algorithm saves a lot of computation time. Results of this study have certain guiding significance for the drogueprobe aerial refueling.

关 键 词：空中加油 软管锥套系统 鞭打现象 多体系统 数值模拟 

分 类 号：V221.3[航空宇航科学与技术—飞行器设计]