摘要
为研究潜-飞两栖导弹和水下兵器在不同入水初始条件下的跳弹行为,利用ANSYSCFX软件构建数值计算模型,分别以入射角度和入水速度为变量,对细长体射弹的入水跳弹行为进行数值模拟.研究结果表明:射弹的入水跳弹行为可分为撞击阶段、侵水阶段和出水阶段等3个阶段;入水初始速度越大,射弹越容易发生跳弹行为,且发生跳弹的速度越快,而较小的初始速度不足以提供使射弹跳出水的动能;射弹的入射角度越小,其轨迹越易向上发生弯曲,越容易出现跳弹行为.
In order to study the ricochet behavior of air-water crossing vehicle and underwater ordnance at different incident conditions, the numerical simulation model using ANSYS CFX software is built by changing the incident velocity and angle. The research results show that: the ricochet behavior can be divided into three stages: impacting, water-entry and water-out;a greater incident velocity makes the ricochet behavior more easy and quick occur, and a smaller velocity is not enough to provide kinetic energy to the velocity to leave the water;a smaller incident angle makes the trajectory upward and even ricochet, causing the underwater movement deviating from the extension of air trajectory. The conclusion can provide a reference for the underwater ordnance and air-water crossing vehicle.
作者
陈国明
胡俊华
刘安
冯金富
李永利
CHEN Guo-ming;HU Jun-hua;LIU An;FENG Jin-fu;LI Yong-li(College of Aeronautics Engineering, Air Force Engineering University, Xi’an 710038, China;College of Equipment Engineering, Engineering University of CAPF, Xi’an 710086, China)
出处
《中北大学学报(自然科学版)》
CAS
2019年第5期400-406,共7页
Journal of North University of China(Natural Science Edition)
基金
国家自然科学基金资助项目(51779263)
关键词
水下兵器
跳弹行为
潜-飞两栖导弹
underwater ordnance
ricochet behavior
air-water crossing vehicle