波浪与水面浮体相互作用中共振现象的数值模拟研究  

Numerical investigation of the resonance phenomenon between waves and floating bodies

作　　者：陈学彬[1] 陈志涯[1] 詹杰民[1] 

机构地区：[1]中山大学应用力学与工程系,广州510275

出　　处：《水动力学研究与进展（A辑）》2014年第3期338-345,共8页Chinese Journal of Hydrodynamics

基　　金：国家海洋公益性行业专项资助项目(201005002)~~

摘　　要：该文基于不可压缩黏性流体的N-S方程和VOF方法,采用CFD软件FLUENT,对波浪与水面浮体相互作用中的共振现象,进行了数值模拟研究。首先研究了波浪越过潜堤后的波浪变化,验证了模型的准确性;而后基于动量源项造波方法,建立了前端消波的数值模型,并探讨了水上漂浮的两物体在波浪作用下的共振问题。结果表明:共振频率与共振峰值和实验数据吻合良好。另外还探讨了浮体的浸没水深对共振频率和共振峰值的影响。The study is based on the N-S equations for viscous, incompressible fluid and VOF method with CFD software FLUENT. Firstly, a swing plate is used to generate wave and the wave propagation over a trapezoid submerged breakwater is investigated. Then the numerical momentum source wave-maker and wave absorber in the leading end are established to simulate the resonance phenomenon between waves and floating bodies. The numerical results about resonant frequency and peak value are in good agreement with the experimental data. The influence of floating body draft on the resonant frequency and peak value is discussed.

关 键 词：共振 梯形潜堤 水上漂浮物体 造波 

分 类 号：O353.1[理学—流体力学]