深水造流系统数值模拟与实测验证  

Numerical simulation and full-scale measurement verification of current generation system in deepwater offshore basin

作　　者：单铁兵[1] 杨建民[1] 吕海宁[1] 

机构地区：[1]上海交通大学海洋工程国家重点实验室,上海200030

出　　处：《海洋工程》2010年第4期54-60,共7页The Ocean Engineering

基　　金：国家863计划重大课题资助项目(2006AA09A107);上海市科委基地能力建设项目(07DZ22027)

摘　　要：通过求解N-S方程和SST k-ω湍流模型对深水造流系统进行了时域模拟。为了提高数值计算的精度,准确扑捉流场的细节,采用多块结构化网格技术生成流体域网格。分析深水试验区域的流场分布规律,给出水流速度沿横向方向的分布情况,计算流场稳定所需要的时间。为了验证数值计算的准确性,对海洋深水造流系统进行实测试验。计算值与试验值吻合较好,证明该方法的可行性。数值模拟的结果对合理选取试验区域,了解造流系统的相关特性,有效控制水池内水流速度,提高海洋深水试验的精确度具有相当重要的作用。Time domain method is used to simulate deepwater current generation system by solving N-S equation and SST turbulent model.Multi-block structural grid is used to create fluid domain mesh in order to increase precision of numerical calculation and get the detail of fluid domain precisely.The distribution of water velocity along transverse direction and stability time of flow field are also calculated in this paper.Full-scale measurement is carried out in deepwater offshore basin to verify numerical simulation.The computed results agree fairly well with test data,which indicates this method is available.Numerical results play a significant part in arranging test domain fairly,finding out relative characteristics of current generation system,adapting flow velocity in deepwater offshore basin effectively and increasing test precision.

关 键 词：N-S方程 深水造流系统 时域模拟 深水试验池 

分 类 号：P751[交通运输工程—港口、海岸及近海工程]