排灌机械工程学报Issue(1)：30-33,4.DOI:10.3969/j.issn.1674-8530.13.0049
V形浮式防波堤的动压力特性
Characteristics of dynamic pressure on floating V-shaped breakwater
摘要
Abstract
In order to determine the wave force (or moment)in design and structure analysis of floa-ting V-shaped breakwater,the dynamic pressure distribution and its amplitude on the wet surface of breakwater was calculated and analyzed in a regular wave.Considering the diffraction effect,the velo-city potential around the breakwater was calculated based on the 3 D linear potential flow theory in fre-quency domain by using boundary element method and 3 D Green functions,which were solved by both integral method and eigenfunction expansion approach.The dynamic pressure was calculated by using the linear Bernoulli equation according to the velocity potential just obtained numerically.Moreover, the dynamic pressure and its amplitude on the wet surface were estimated in a regular wave.The re-sults of an example indicate that the dynamic pressure distribution on the wet surface is sinusoidal lon-gitudinally and attenuating downward vertically.The distance between the two nearest peaks of dyna-mic pressure is approximately equal to the quotient of incident wave length divided by the cosine of the angle between the incident wave direction and the breakwater.Besides,the maximums of dynamic pressure (about 2 kPa)are on the free surface,while the minimums(about 0.2 kPa)are in the bo-ttom of breakwater,thus the dynamic pressure near free surface plays a very important part in wave force (or moment)of floating V-shaped breakwater.关键词
V形浮式防波堤/动压力/势流/波浪力Key words
V-shaped floating breakwater/dynamic pressure/potential flow/wave force分类
农业科技引用本文复制引用
丁宁,余建星,侯佳佳..V形浮式防波堤的动压力特性[J].排灌机械工程学报,2014,(1):30-33,4.基金项目
国家自然科学基金资助项目（51021004）；上海交通大学海洋工程国家重点实验室研究基金资助项目 （）
