NUMERICAL STUDY OF DYNAMICS BEHAVIOR OF BUBBLE NEAR THE WALLIN UNDERWATER EXPLOSION
Lijian1, Lin Xiankun1, Rong Jili2, Xiang Dalin2
1. Automotive and Transportation Engineering Institute, Guangxi University of Science and Technology, Liuzhou, China, 545006,2. School of Aerospace Engineering, Beijing Institute of Technology, Beijing, China, 100081
One-dimensional model of the detonation and propagation of shock wave for explosive was established and simulated using MSC.DYTRAN finite element analysis software. The computational results of the peak value pressure of shock wave compared with the experimental results. The compared results show that the former was consistent with the latter. The initial value of three-dimensional bubble was determined by the computational results based on one-dimensional model. Subroutines defined the initial value and boundary conditions of fluid field were developed. The dynamic behavior of bubble near rigid plate were simulated and analyzed. The interactions between bubble and rigid plate were studied systematically and summarized relative law that the dynamic behaviors of bubbles have close relation with distance parameter and initial angles. The research has value to correlative theory research and engineering calculation.