潜载导弹水下弹射过程数值仿真  

Numerical Simulation of the Underwater Launching Process of Submarine-Based Missile

作　　者：赵汝岩[1] 翁璐[2] 徐珂文[1] 周源[1] 

机构地区：[1]海军航空工程学院七系 [2]海军装备部军械保障部

出　　处：《海军航空工程学院学报》2012年第5期512-516,共5页Journal of Naval Aeronautical and Astronautical University

摘　　要：针对无横流影响的潜射导弹水下弹射过程瞬态流场变化情况,建立了多相流数学模型。考虑空穴模型,运用动网格技术,再现了导弹水下弹射过程的筒口气团、肩空泡的演变过程以及弹体底部、固壁的压力变化。仿真结果表明,筒口效应导致固壁各处的压力阶跃;筒口气团收缩拉断的过程中,闭合点处形成高压区,导致固壁各处压力剧烈上升,同时闭合点处产生的反射流撞击导弹底部引起压力变化。The complex multiphase flow of non-effects of lateral flow to the underwater launching process of submarine-based missile was studied. By means of mixture model, cavitation model and dynamic mesh were used to simulate the process of evolvement of air mass and partial cavitation and the pressure on the wall of launch-platform and the bottom of the missile. The result indicated the pressure on the wall of launch-platform jump, high pressure field form at the closed point which induced the pressure on the wall of launch-platform rising, and reflected stream impinging the bottom of the missile induced the variety of pressure.

关 键 词：潜载导弹 水下弹射 动网格 

分 类 号：TJ762.4[兵器科学与技术—武器系统与运用工程]