Simulation of plunging wave impact on a vertical wall
Simulation of plunging wave impact on a vertical wall
复制标题
DOI：
10.1017/s002211209600852x
复制
发表时间：
1996-11
影响因子：
3.7
通讯作者：
Sheguang Zhang;D. Yue;K. Tanizawa
中科院分区：
文献类型：
--
作者：
Sheguang Zhang;D. Yue;K. Tanizawa
我们提出了一个数值研究的影响，二维暴跌波的刚性垂直壁的背景下的势流。采用混合欧拉-拉格朗日（MEL）边界积分格式生成了冲击壁面的纵倾波。初始阶段的影响的特点是倾斜的影响，液体楔在墙上，并解决了使用相似的解决方案。在初始冲击之后，继续MEL模拟以捕获瞬态冲击过程。被困在柱塞和壁之间的气垫的效果被认为是。除了时间演变和表面轮廓等细节外，主要关注的是壁面上的最大冲击压力及其上升时间。为了达到适当的比例律，这些，模拟和相关性进行了探讨，为广泛的本地暴跌波的运动学和几何参数。为了评估目前的结果，与Chan和梅尔维尔（1988）的实验进行了直接比较。获得合理的数量协议，并确定和讨论差异的可能来源。
We present a numerical study of the impact of a two-dimensional plunging wave on a rigid vertical wall in the context of potential flow. The plunging wave impinging the wall is generated using a mixed-Eulerian-Lagrangian (MEL) boundary-integral scheme. The initial stage of the impact is characterized by an oblique impact of a liquid wedge on the wall and is solved using a similarity solution. Following the initial impact, the MEL simulation is continued to capture the transient impact process. The effect of an air cushion trapped between the plunger and the wall is considered. In addition to details such as temporal evolutions and surface profiles, the main interests are the maximum impact pressure on the wall and its rise time. To arrive at appropriate scaling laws for these, simulations are performed and correlations are explored for a broad range of local plunging wave kinematic and geometric parameters. To assess the present results, direct comparisons are made with the experiment of Chan & Melville (1988). Reasonable quantitative agreement is obtained and likely sources for discrepancies are identified and discussed.