Author(s): Xingrui Tao; Mingtao Jiang; Wei Chen; Zili Dai
Linked Author(s): Mingtao Jiang
Keywords: Underwater blasting Multi-fluid Bubble dynamics
Abstract: In underwater explosion simulations, the accuracy is critically affected by numerical diffusion and the quality of the computational grid. An enhanced interface-sharpening algorithm is proposed to simulate the compressible multi-phase flow with an arbitrary number of phases in underwater explosions. To enhance the precision and stability on non-uniform and unstructured grids, an adaptive factor algorithm and a continuous interface capture function are developed. The quardratic monotone upstream-centred scheme for conservation Laws (MUSCL) reconstruction scheme and the improved advection upstream splitting method (AUSM+-up) flux scheme are also adopted. To assess the accuracy and robustness of the proposed numerical model, three representative test cases were chosen. The results reveal that the model refines the phase interface, adeptly capturing the complexities inherent in underwater explosion scenarios with both precision and efficiency across a diverse array of conditions.
Year: 2025