桥区船舶运动轨迹数值模拟与实船试验对比研究

摘要

利用FVM对建立的桥区水流场数学模型进行离散和数值求解,在此基础上,根据建立的船舶运动方程,对桥区船舶运动特性进行了数值模拟.通过实船试验,根据船舶漂移量数学模型,对建桥前后限制航道内的船舶运动轨迹进行了对比研究和深入分析.%With the finite volume method(FVM), the mathematical model of flow field in bridge area is discretized and mathematically solved. Then, the changes of flow field affected by the construction of bridge were studied. According to different flow field, ship's trajectories in bridge area are simulated with ship manoeuvrability model, MMG model. By full-scale experiment with DGPS in bridge area, taking into consideration of ship's excursion model in real navigation environment, comparison of ship's trajectory between numerical result and full-scale experimental result was analyzed. The comparison shows the importance of hydrodynamic interference forces between ship and pier and bank suck effect.