三维水下爆炸气泡的数值模拟

Abstract

Abstract: The flow is solved by using the boundary integral equation method and the higher order finite element discretization on the assumption that the water is inviscid and incompressible,the flow is potential and the bubble gas obeys the isoentropic rule. The evolution of the bubble is simulated by means of a mixed Euler-lagrangian method. The comparison of the numerical results with the “exact solution” of a spheric bubble and experimental data shows that the mathematical model is reasonable and the 3-D numerical method has high accuracy.The dynamic load on the body and important behavior of the bubble,such as migration and jetting,are derived.

Key words: underwater explosion, potential flow, boundary integral method, finite element method

CLC Number:

TJ01111
TV1391234

Lu Chuanjing. 3-D NUMERICAL SIMULATION OF UNDERWATER EXPLOSION BUBBLES[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 1996, 17(1): 90-93.

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3-D NUMERICAL SIMULATION OF UNDERWATER EXPLOSION BUBBLES

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