高压储气罐泄漏喷射时冲击载荷数值计算

Numerical calculation of blast loads from a bursting pressurized vessel

1.
Department of Power Engineering, Nanjing University of Science & Technology, Nanjing 210094, Jiangsu, China

摘要: 采用作者研发的用于含运动可变形物体流场计算的自适应非结构网格生成技术、动边界条件及数值处理方法，对地下高压储气罐发生泄漏喷射时罐盖（或破片）运动过程以及周围环境目标点上的冲击载荷进行了数值计算，讨论了在不同的罐盖质量、喷射孔径条件下目标点上冲击载荷的变化情况。研究结果表明,罐盖（或破片）的运动对爆炸场冲击载荷的影响是显著的。
- 爆炸力学 /
- 冲击载荷 /
- 数值计算 /
- 泄漏喷射 /
- 动边界
Abstract: On the basis of the developed numerical treatment to numerically simulate flows with moving and deforming objects, the movement of a cover induced by the bursting from a pressurized vessel and its effects on the environmental flow field are investigated. The influences of bursting size and cover weight on the blast loads are examined in detail. The results show that the influence of the cover movement on the blast loads is significant.
- mechanics of explosion /
- blast load /
- numerical calculation /
- bursting /
- moving boundary