港湾内非线性波浪对船剖面作用的时域计算模型(英文)  

Time Stepping Solutions of Nonlinear Wave Forces on Ship Section in Harbor

作　　者：王大国[1,2,3] 陈雪峰[1] 唐洪祥[2] 

机构地区：[1]大连大学材料破坏力学数值试验研究中心,辽宁大连116622 [2]大连理工大学海岸和近海工程国家重点实验室,辽宁大连116024 [3]水沙科学与水灾害防治湖南省重点实验室,湖南长沙410076

出　　处：《船舶力学》2009年第3期357-368,共12页Journal of Ship Mechanics

基　　金：Supported by the National Natural Science Foundation of China (50809008, 50609001);the Hong Kong Research Council (HKU 7171/06E);the Open Foundation of Hunan Province Key Laboratory of Water & Sediment Science and Water Hazard Prevention (Grant No. 2008SS04);the China Postdoctoral Science Foundation (20060400972);the Dalian Science and Technology Foundation (2007J23JH027)

摘　　要：文中用边界元数值求解复速度势模拟了波浪对船剖面的时域作用力,采用满足运动学和动力学条件的半拉朗格朗日法跟踪流体的自由表面。推导了适用本数值模型的辐射边界条件,此边界条件和海绵层边界条件组成的出口边界条件,可以使波浪很好地被吸收或传播出去。进行了相关物理模型实验,数值计算结果和实验结果的对比表明此模型能精确模拟波浪对船的作用力。A 2D time-domain numerical model is developed to obtain nonlinear wave forces on ship section in harbor. The method is based on the boundary element method in the complex plane. A new radiation condition combined with sponge layers is used to remove the reflected waves from the computing domain. Relevant physical experiment is conducted to validate the numerical model, and it is shown that the numerical results agree with the experimental data.

关 键 词：复速度势 边界元 非线性波浪力 开边界 

分 类 号：U661.1[交通运输工程—船舶及航道工程]