人工岛游艇码头泊稳试验与数值模拟研究

Experimental Test and Numerical Simulation of Berthing in a Marina Beside the Artificial Island

针对青岛万达游艇码头项目进行了港域波浪物理模型试验研究。试验表明,当口门处人工岛护岸采用直立式结构时,港池入口处波浪反射严重,港内波高较大,各码头泊位不满足泊稳要求;当采用斜坡式结构时,港内波高显著减小,游艇码头泊位满足泊稳要求,工作船泊位不满足泊稳要求,其最大波高比允许值仅大0.1m。采用MIKE21BW模型,考虑波浪的折射、绕射、反射及破碎等物理过程,对港域的波浪传播变形过程进行数值模拟,计算得到了港域的波浪分布状况,将计算结果与试验结果进行比较,吻合良好,表明该模型可用于近岸波浪的传播变形模拟及港域泊稳计算,计算结果可用于游艇码头结构设计。

The physical experiment is performed to study the berthing conditions of Wanda marina in Qingdao.Experimental results show that when the vertical structure is used to the revetment of the artificial island near the entrance,there are a serious wave reflection at the entrance of the harbor basin and the berthing conditions of most berths are not satisfactory because of a larger wave height in the basin.And the wave height of the harbor is reduced significantly when the slope structure is used to the revetment near the entrance of the artificial island,and the berthing conditions of most berths meet the berthing conditions,in which all the marina berths are satisfied and the maximum wave height of the workship berths is only 0.1 meters larger than the allowable value.Based on the MIKE21 BW model,which considering the physical processes of wave refraction,reflection,diffraction and breaking,a numerical simulation model is established to simulate the process of the wave propagation and transformation and calculate the wave distribution in the harbor basin.The comparisons between the numerical and measured results of the berthing conditions are in good agreement,which indicate that the BW model is suitable for the calculation of wave transformation and berths safety of harbor basins,and the results can be used for the structure design of the marine.