Numerical Analysis of Shock Wave Propagation Law of Internal Gas Explosion

摘要：

The purpose of this paper is to research on shock wave propagation law of internal gas explosion. The multi-material Eulerian and Lagrangian coupling algorithm was adopt. Using ANSYS/LS-DYNA dynamic analysis software to build frame structure, air and gas explosion models. Multiple ALE elements for simulating air and gas explosion material the analysis of blast shock wave propagation in a threestory steel frame structure and the characteristics of explosion pressure using fluid-structure coupling method are carried out. The conclusions show that fluid-structure coupling method can well simulated shock wave propagation of internal gas explosion, and the pressure peak of blast shock wave increased with the increasing of the blast air initial energy. Locality is the characteristic of explosion pressure in sealed space, and the pressure pass weakly when it propagates in solid.

关键词： Gas explosion Shock wave Fluid-structure coupling Numerical simulation

作者: Xiu Hua Zhang Yan Yan Wu

作者单位: School of Civil Engineering, Northeast Forestry University, Harbin China, 150040

会议类型: 国际会议

会议名称: 2011 International Conference on Vibration,Structural Engineering and Measurement(2011年振动、结构工程与测量国际会议 ICVSEM 2011)

会议地点: 上海

会议语种:英文

页码: 299-302

在线出版日期: 2011-10-21（万方平台首次上网日期，不代表论文的发表时间）