中国物理B ›› 2025, Vol. 34 ›› Issue (6): 64701-064701.doi: 10.1088/1674-1056/adbed8
Fang Wang(王芳)1, Xinpeng Yuan(原新鹏)2,†, and Jianzhu An(安建祝)1
Fang Wang(王芳)1, Xinpeng Yuan(原新鹏)2,†, and Jianzhu An(安建祝)1
摘要: This paper focuses on the application of the adaptive mesh method in the study of underwater shock waves near the water surface. By integrating theoretical analysis with a five-equation model under axisymmetric coordinates, we developed an optimized computational framework for multi-material fluid simulations. The moving mesh method (r-method) is used to accurately capture complex underwater shock wave systems. Multiple numerical experiments are conducted, including deep-water explosions, near-surface explosions for both spherical charge and cylindrical charge, and regular-irregular reflection interface calculations. The results show that compared to the fixed mesh method, the adaptive mesh method provides results closer to the theoretical values and achieves local high-resolution computation of multi-material fluids. By adjusting the adaptive function, different mesh refinement effects can be obtained. This method also has certain advantages in calculating the regular-irregular reflection interface in underwater explosions. This study establishes a validated computational framework for underwater explosion research, enhancing the predictive accuracy for underwater shock wave propagation in engineering assessments and providing new insights into the fundamental physics of multi-material explosion phenomena.
中图分类号: (Compressible flows; shock waves)