摘要
基于CFD方法对船舶浅水航行航态变化问题进行研究。通过同时求解RANS方程和刚体运动学方程对船舶浅水航行流场进行数值模拟,并根据浅水流场空间受限的特点,采用三种动网格相结合的方法,解决船舶在浅水中航行时航态变化的网格更新问题,在数值模拟中还考虑了螺旋桨旋转的影响。文中以S60船模(Cb=0.6)为对象,计算了其浅水航行的下沉量和纵倾值,计算结果与船模水池试验数据对比,吻合良好。
A study on the navigation behavior for ships in shallow water has been carried out based on CFD. This paper numerically simulates flow field around ship in shallow water by simultaneously solving equations of Reynolds Averaged Navier-Stokes （RANS） and kinematic equations of a rigid body. To settle the mesh update issue for the ships in shallow water when the navigation behavior is changed, this paper adopts the method of coupling three dynamic mesh according to the characteristics of limited space of shallow water. It also considers the influence of the propeller rotation. The numerical simulation is carried out on a $60 model （Cb=0.6） to calculate the ship sinkage and trim travelling in shallow water. The numerical results are in good agreement with the experimental data.
出处
《船舶》
2013年第3期7-11,共5页
Ship & Boat
基金
辽宁省博士科研启动基金项目(20111037)
辽宁省优秀青年人才基金项目(2012J21DW027)
