THE EFFECT OF SURFACE CURVATURE ON UNDEX-INDUCED HULL CAVITATION

摘要

Hull cavitation evolution induced by an underwater explosion (UNDEX) near a deformable steel structure is numerically investigated using a multiphase compressible fluid solver~( c1oupled w-ith an3) unsteady one-fluid cavitation model~(4,e.r5s o f cAomputati onsi)s are econducted with varying structure surface curvature. Results suggest that structure surface curvature influence the peak pressures generated from the shock impact and cavitation collapse; a concave-designed surface not only causes local shock focus but also enhances the subsequent cavitation reload