船舶粘流计算软件“OShip”开发

摘要

论文系统阐述了船舶粘流计算软件“OShip”的数值处理及其功能实现方法，软件基于重叠网格技术，采用RANS方程模拟船舶粘性兴波流场，实现对船舶水动力性能的精细预报。通过静态和动态计算实例验证了其对船舶快速性、操纵性、耐波性以及螺旋桨敞水性能的计算效率和精度。该软件功能全面、操作简便，是精细预报船舶水动力性能的有效工具。%In this paper a numerical method in the software “OShip “ is stated for open/overlap ship viscous calculation, in which RANS equation and overset grids are used to the calculation of flow field around the underwater hull. Static and dynamic calculation examples verify both efficiency and accuracy of present method in resistance performance, maneuverability, sea keeping and propeller characteristics in open water. Tests show that the software is a strong, convenient and user-friendly tool for precise prediction of ship hydrodynamic performance.