关于分层流体中非波导情况下的波荷载  

On wave load in stratified fluid for case of non-wave-guide

作　　者：沈国光[1] 黄衍顺[1] 

机构地区：[1]天津大学建筑工程学院,天津300072

出　　处：《海洋工程》2005年第4期85-91,共7页The Ocean Engineering

基　　金：国家自然科学基金资助项目(50179024)

摘　　要：针对分层流体中非波导情况的荷载问题,就密度剖面为两间断分层和三层模式的情况,分别利用势流理论解析解和分段构造的垂向结构方程解,得出了对应波场的速度和作用于垂直桩柱上的荷载分布。结果表明,非波导情况下的波场具有与波导情况及表面水波情况所不同的特性。由于波频较高,其所形成的荷载比波导情况为大,而且在流场内部存在大的波力和切向速度间断。In this paper, the wave load problem in the stratified fluid for the case of non-wave-guide is discussed. With conditions of two disconnected layers and a three-layer model of the density section, the velocity and load distribution on the vertical stake are obtained for corre- sponding wave fileds. The results show that the wave fileds of non-wave-guide possess different characteristics with conditions of the wave-guide and the surface waves. As the wave frequency is higher, the resultant load is greater than that under the wave-guide condition. Further more, disconnection is found between wave force and shear velocity within the fluid field.

关 键 词：分层流体 非波导 波荷载 

分 类 号：O353.2[理学—流体力学]