摘要
以软件Fluent作为仿真软件,应用其能够计算流体力学的特点,对操纵船舶的水动力进行预报。其方法为使用软件的动网格及后处理功能,计算出粘性流场中船舶在不同的状态以及在做不同运动时的水动力导数。首先根据船舶的运动状态计算出作用于船舶上的水动力力矩,然后对力矩进行曲线拟合,从而得到粘性流场中船舶操纵水动力导数。仿真计算结果表明,在不同运动状态下船舶的操纵水动力与次频率没有明显关联,所以该粘性流场中船舶操纵水动力导数计算方法完全可行。
In this paper, as the simulation software Fluent software application capable of computational fluid dynamics characteristics of the operation of the ship hydrodynamic predict. The methods for the use of dynamic grid software and post-processing functions to calculate the viscous flow around a ship in a different state and a power lead in the number of water do different exercise in. First,calculate the effect according to the state of motion of the ship in the hydrodynamic torque on the ship,followed by curve fitting of the moment,to give power derivative ship handling viscous water flow field. The simulation results show that the hydrodynamic steering the ship at different state of motion is not significantly associated with a second frequency,so that the viscous flow field of ship maneuverability hydrodynamic derivative calculation method is completely feasible.
出处
《舰船科学技术》
北大核心
2016年第8X期1-3,共3页
Ship Science and Technology
