【作者】 尹莉； 钱勤； 罗宁； 倪樵；

【Author】 YIN Li QIAN Qin LUO Ning NI Qiao (School of Civil Eng. & Mechanics, HUST, Wuhan 430074, China)

【机构】 华中科技大学土木工程与力学学院；

【摘要】 结构的撞水是流固耦合相互作用的瞬态过程．本文采用有限元法,就三维楔形体结构对带自由表面流场的撞水过程进行了数值模拟．楔形体结构简化为V型折板,流场和结构分别采用欧拉网格与拉格朗日网格, 进行流固耦合动力分析的迭代求解．在此基础上开展参数化研究,探讨了撞水速度、板厚、斜倾角以及材料参数对撞水过程的影响．分析的结果与有关文献的实验结果比较吻合,为撞水结构的强度分析与设计提供了参考．更多还原

【Abstract】 It is a transient process of fluid-structure interaction for a structure impacting on water. By means of finite element method, a numerical simulation of water impact is proceeded for a three-dimensional wedge-shaped structure impacting on the fluid field with a free-surface. The wedge is simplified to V-shaped plates. The fluid domain and structure are modeled with Eulerian and Lagrangian meshes respectively. The iterative solution is solved for the dynamic analysis of fluid-structure interaction. Based on the numerical simulation, the parametric investigations are carried out, including the influences of the impacting velocity, the plate-thickness, the deadrise angle and the material parameters on the process of water impact. The present numerical results of dynamic analysis on water impact agree well with the experimental results of the references. It will provide reference for the strength analysis and design of impact structure.更多还原