The fluid-structure interaction analysis of elbows under a transient liquid slug

被引：0

作者：

Liu, Gang ^{[1
]}

Yang, Jian ^{[1
]}

Zheng, Jin-Yang ^{[1
]}

Ding, Xianting ^{[2
]}

Wong, Ieong ^{[2
]}

Xu, Chao ^{[1
]}

Guo, Jin-Xing ^{[1
]}

机构：

[1] Institute of Chemical Machinery, Zhejiang University, Hangzhou 310027, China

[2] Department of Mechanical and Aerospace Engineering, University of California, Los Angeles 90095, United States

来源：

Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics | 2010年 / 31卷 / SUPPL.期

关键词：

Liquids - Accident prevention - Computational fluid dynamics - Flow velocity - Numerical models;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

In industrial processes, the liquid slug trapped in pipes is one of the most important factors that affect the system safety. When the system is reactivated, propelled slugs will seriously impact elbows and cause serious accident in the pipe systems. Therefore, it is important to analyze the fluid-structure interaction of elbows under a transient liquid slug by numerical simulation. Based on the Arbitrary Lagrangian Eulerian (ALE) approach, the transient process was simulated by the FEA model effectively. Using the penalty coupling algorithm method, fluid-structure interaction (FSI) was successfully simulated. The coupling force changengover time was curved. Besides, the response of the elbow was also analyzed. The pressure distribution and dynamic stress in were recorded to find out the peak maximum stress. To confirm the region with high-stress level, the stress field was given in contour plot at the critical time. Furthermore, the potential damaged position was predicted in this transient process. Finally, the influence of the flow velocity was investigated in details.

引用

页码：85 / 88