深海中浮式直立圆柱体水动力系数研究  

Hydrodynamic Coefficients for a Floating Vertical Cylinder in Infinite Depth

作　　者：王冬姣[1] 周晖[1] 

机构地区：[1]华南理工大学土木与交通学院,广州510640

出　　处：《科学技术与工程》2010年第1期25-29,共5页Science Technology and Engineering

基　　金：广东省自然科学基金(7035774)资助

摘　　要：提出了水动力系数计算中代表深海情况的水深条件。采用特征函数展开及边界匹配的方法求解流场各子区域速度势的展开系数,得到了深海中浮式直立圆柱体的水动力系数,并对所需的截断项数进行了讨论。用提出的处理方法能有效地计算深海中浮式直立圆柱体的水动力系数。The depth condition which represents the deep water cases in the calculation of the hydrodynamic coefficients is presented. Hydrodynamic coefficients for a floating vertical circular cylinder in water of infinite depth are obtained,and the unknown coefficients in the velocity potentials are solved by the method of matched eigenfunction expansions. The truncation terms needed is also discussed. It is shown that the hydrodynamic coefficients for a vertical circular cylinder floating in water of infinite depth can be obtained effectively by the present method.

关 键 词：浮式直立圆柱 水动力系数 深水 截断项数 

分 类 号：O353.2[理学—流体力学]