摘要
针对密闭压力容器开启瞬间高压流体对压力容器薄壁的瞬态冲击问题,利用ansysworkbench软件建立了远域-近腔-腔内三个流场计算域,利用双向流固耦合数据传输模块实现了流场与结构之间的力-位移实时数据交互,对高压环境下气液两相流对薄壁的冲击特性进行了深入研究。研究表明,盖板在打开过程中由于高压气体对高压水存在缓冲作用,薄壁的最大应变和最大应力并不会出现太大的波动,其中薄壁最大应力出现在曲面底部固接附近,最大应力仅为27.62 MPa,最大形变量为0.135 6 mm。
Aiming at the problem of the transient impact of high-pressure fluid on thin-walled structures when the closed cavity is opened,this paper establishes three flow field calculation domains of far-field,near-chamber and cavity by using ANSYS Workbench,and realizes the real-time force-displacement data interaction between the flow field and the structure by using the two-way fluid-structure coupling data transmission module.The impact characteristics of gas-liquid two-phase flow on thin-walled structures under high pressure were studied.The study shows that the maximum strain and maximum stress of the thin-walled structure do not fluctuate too much due to the buffering effect of high-pressure gas on high-pressure water during the opening process of the cover plate.The maximum stress of the thin-walled structure appears near the bottom of the curved surface,and the maximum stress is only 27.62 MPa,and the maximum shape variable is 0.1356mm.
作者
赵灯
王升德
吕达
张增磊
Zhao Deng;Wang Shengde;Lv Da;Zhang Zenglei(Wuhan Second Ship Design and Research Institute,Wuhan 430000,China)
出处
《科学技术创新》
2022年第35期53-56,共4页
Scientific and Technological Innovation
关键词
瞬态冲击
流固耦合
气液两相流
薄壁件
transient impact
fluid-structure coupling
gas-liquid two-phase flow
thin-walled
