细长体穿越冰-水混合物的出水流场数值模拟  

Numerical Simulation of Thin Body Passing through the Ice-water Mixture Flow Field

作　　者：蔡晓伟 宣建明[1] 王宝寿[1] 李巍[1] 张军[2] CAI Xiaowei;XUAN Jianming;WANG Baoshou;LI Wei;ZHANG Jun(National Key Laboratory of Hydrodynamics,China Ship Scientific Research Center,Wuxi 214082,Jiangsu,China;College of Aerospace Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,Jiangsu,China)

机构地区：[1]中国船舶科学研究中心水动力学重点实验室,江苏无锡214082 [2]南京航空航天大学航空学院,江苏南京210016

出　　处：《兵工学报》2020年第S01期79-90,共12页Acta Armamentarii

基　　金：装备预先研究领域基金项目(61402070404)。

摘　　要：针对极地强烈的军事需求,对细长体穿越冰-水混合物出水现象进行研究的重要性日益凸显。借鉴ANSYS/LS-DYNA软件包在流体与固体耦合问题中的成功应用,将任意拉格朗日-欧拉方法应用到细长体穿越冰-水混合物的出水流场数值模拟研究。通过细长体、冰块、海水、空气等复杂介质界面、运动系统的计算模型建模,开展接触、非接触工况下细长体出水流场的数值预报,获得两种工况下流场主要特征的动态变化规律,验证了该方法在此类问题中的适用性,为后续载荷计算和开展试验研究提供了有益的参考。The importance of researching a thin body passing through the ice-water flow field is growing for the strong military needs of polar regions.The arbitrary Lagrangian-Eulerian(ALE)method is used for simulating the thin body passing through the ice-water flow field.A numerical computational system is set up by modeling the thin body,ice,sea water,and air.The dynamic change laws of the mian flow field characteristics under two working conditions were obtained.The applicability of solving this kind of problems by ALE method is validated.The research results provides a good reference for the following load calculation and test.

关 键 词：细长体 冰-水混合物 出水流场 数值计算 

分 类 号：O351.2[理学—流体力学]