【摘要】 该文阐述水下爆炸结构物附近三维非对称气泡运动的计算模型,基于势流理论采用边界积分法求解拉普拉斯方程。通过与参考文献实验的比较,验证了计算模型的正确性。最后以椭球形结构物下方爆炸气泡为算例进行详细的数值模拟和分析,获得气泡运动规律、流场压强变化,结构物危险载荷及其分布情况,旨在为工程领域水下爆炸气泡运动规律探索以及结构物的破坏机理研究提供参考。更多还原

【Abstract】 The three-dimensional model of an underwater explosion bubble near a structure is described here.The boundary integral method is used to solve Laplace equation based on potential-flow theory.Comparisons have been carried out between the results of present model and experiments,which demonstrate the accuracy of our method.Finally,An explosion bubble under an ellipsoid structure is studied numerically in detail,from which we obtain the process of bubble motion,fluid pressure development and the critical loading on the structure.They can be as important references in the engineering field of underwater explosion bubble dynamic and destruction mechanism of the structure.更多还原