爆炸与冲击2018，Vol.38Issue(4)：931-936,6.DOI:10.11883/bzycj-2016-0378
空气炮碰撞实验台发射过程的数值模拟
Numerical simulation of launching process of air gun impact test-bed
摘要
Abstract
We simulated the launching progress of SSAGIT using the computational fluid dynamics (CFD) and the velocity of the impact car obtained from calculation are consistent with the experiment results. Based on this, we investigated the flow field, the pressure in the front and back of the car, and the pressure of the gasholder. The results showed that the launch field was filled with the leakage gas before the arrival of the impact car, causing the development of an initial flow field, and the alternatively positive and negative variations of the pressure in the front of the car, but its influence on the acceleration process was negligible because of its small value. In addition, the acceleration was maintained due to the effect of the jet after the impacted car entered the decompression part, and the increment was about 2 m/s.关键词
计算流体力学/模拟分析/动态网格/空气炮Key words
computational fluid dynamics (CFD)/simulation analysis/dynamic mesh/air gun分类
数理科学引用本文复制引用
肖程欢,鲁寨军..空气炮碰撞实验台发射过程的数值模拟[J].爆炸与冲击,2018,38(4):931-936,6.基金项目
国家自然科学基金项目(U1334208) （U1334208）
