碎片撞击储罐的流固耦合模拟研究  

Fluid-structure Interaction Simulation of Fragment Impacts on Tanks

作　　者：邓子龙 任婧杰[1] 赵彦修[2] 于迪 毕明树[1] Deng Zilong;Ren Jingjie;Zhao Yanxiu;Yu Di;Bi Mingshu(School of Chemical Engineering,Dalian University of Technology,Dalian 116024;China Special Equipment Inspection&Research Institute,Beijing 100029)

机构地区：[1]大连理工大学化工学院,大连116024 [2]中国特种设备检测研究院,北京100029

出　　处：《中国特种设备安全》2024年第S2期37-41,100,共6页China Special Equipment Safety

基　　金：国家自然科学基金重点项目“液态危化品罐区多米诺燃爆事故成灾机理及防治技术基础研究”(52130410);国家自然科学基金面上项目“非对称约束爆沸冲击下卧式液化烃储罐破裂及碎片抛射机制研究”(52274179)。

摘　　要：在多米诺事故风险评估中,爆炸碎片是关键的因素之一,迫切需要对撞击造成的目标设备损伤进行评价。本文基于拉格朗日-欧拉方法(CEL)建立卧式储罐受封头形碎片撞击的数值模型,分析了不同填充状态的储罐呈现的不同现象,结果表明在分析碎片对储罐的撞击作用时,内部流体作用不可忽略。In the risk assessment of domino accidents,fragment is one of the key factors,and it is urgently necessary to evaluate the damage to the target equipment caused by fragment impact.This paper establishes a numerical model of a horizontal storage tank subjected to impact by a head-shaped fragment based on the Coupled Eulerian-Lagrangian(CEL)method.The different phenomena presented by the tank under different filling states are analyzed.The results show that the internal fluid effect cannot be ignored when analyzing the impact of fragment on the tank.

关 键 词：流固耦合 碎片撞击 有限元法 

分 类 号：X933.4[环境科学与工程—安全科学]