内河航道船舶航行操纵平面二维数值模拟在复杂流态下的应用

基于平面二维水流数学模型和船舶航行操纵数学模型的基本原理,开发了适合内河航道的曲线拟合坐标系下的船舶航行操纵平面二维数学模型,其中水流数学模型采用贴体坐标系下的平面二维水流数学模型,船舶航行操纵数学模型采用比较流行的"组合型"水动力模型。在实船和船模在静水条件及均匀流条件下的航行试验验证的基础上,通过复杂流态河段船舶航行操纵数值模拟的研究,表明该船舶数模基本能够模拟船舶在复杂流态下的航行操纵情况。

Two-dimensional numerical simulation of ship manipulation in inland rivers with complicated flow

Based on flow mathematical model and mathematical model of ship navigation, a plane 2-D mathematical model of ship navigation manipulation is established, which is under the body-fitted coordinate system based on staggered grid, which is perfect for inland rivers. The flow mathematical model uses the 2-D flow mathematical model which is under the body-fitted coordinate system based on staggered grid, and the ship navigation model uses the combination-type hydrodynamic model. Based on the checking test in still water and regular flow, through the simulation on ship manipulation in complicated flow, we get that the 2-D mathematical model of ship navigation manipulation can basically simulate the ship navigation in complicated flow.