摘要
应用CFD软件对船舶通过桥区时的船体-桥墩水动力相互作用进行数值研究,通过使用动网格技术及UDF进行船舶运动过程中的网格更新,对船舶沿直线航线匀速驶经桥墩时的非定常粘性流场进行数值模拟,对桥墩诱导的船体非定常水动力进行数值预报,其中假设船舶航速很小,因而自由面兴波的影响可以忽略。以一艘集装箱船和一个垂直柱体桥墩模型为例,选取不同的船体-桥墩横向距离进行了数值计算,得到了作用在船体上的横向力和转首力矩时历曲线,分析了船体-桥墩横向距离对船体非定常水动力的影响。
A general-purpose CFD software is applied to study the hydrodynamic interaction between a bridge pier and a ship passing through the bridge area along a straight course at constant speed. By using the dynamic mesh technique and UDF to update the mesh, the unsteady viscous flow around the ship is numerically simulated and the unsteady hydrodynamic force on the hull induced by the pier is predicted. The ship speed is assumed to be small, so that the effect of free surface elevation is negligible. Numerical calculations are performed for a container ship and a vertical column as a simplified pier model at various distances between the ship and the pier. The time histories of the lateral force and yaw moment are obtained. The influence of the distance between the ship and the pier is analyzed.
出处
《水动力学研究与进展（A辑）》
CSCD
北大核心
2012年第3期359-364,共6页
Chinese Journal of Hydrodynamics
基金
国家高技术研究和发展计划课题(863计划课题
2007AA11Z250)
国家自然科学基金项目(50779033
51109186)~~
关键词
船舶
桥墩
水动力相互作用
数值计算
Ship
bridge pier
hydrodynamic interaction
numerical calculation
