平板与圆锥体入水的三维数值模拟  

The 3D Numerical Simulation on Water Entry of a Flat Plate and Cones

作　　者：丁金鸿[1] 谭家华[1] 

机构地区：[1]上海交通大学,上海200240

出　　处：《中国海洋平台》2010年第3期1-5,11,共6页China offshore Platform

基　　金：2006年度"十一五"国家科技支撑计划;近海风电机组安装及维护多功能作业船的研制(2006BAA01A25)

摘　　要：对平板和圆锥体的入水砰击问题进行了三维数值模拟。研究了砰击压力在平板底面各测点上的分布、与圆锥底升角的关系、以及与结构物入水速度的关系。比较了平板自由落体入水和等速入水产生的砰击压力峰值、平板和0°底升角圆锥最大压力峰值的关系。结果表明计算与试验较为吻合,三维数值模拟技术可以有效地用于结构物砰击压力研究。The 3D numerical simulation on slamming of a flat plate and cones is developed.The distribution of impact pressure in each measure point on the bottom of the flat plate,impact pressure＇s relation with deadrise angle of cones and the impact velocity are studied.The impact pressure peak values of flat plate entering water by free fall and with constant velocity,the maximum impact pressure peak values of flat plate and cones with 0° deadrise angle are compared.It is shown that the simulation results are close to the tests,the 3D numerical simulation method can be used to study slamming pressure of structures effectively.

关 键 词：入水 砰击 数值模拟 

分 类 号：U663[交通运输工程—船舶及航道工程]