侧推封盖系统水动力设计与性能分析

Design and Hydrodynamic Characteristics of Bow Thrust Cover System

为某船的艏侧推器设计一种四片式线型侧推封盖系统,包括线型封盖板和管隧筒体组件2部分。借助FLUENT商业软件,从船体阻力和侧推力损失2方面计算并对比分析该船安装格栅和安装线型侧推封盖的水动力性能差异。计算结果表明,与格栅相比,设计的线型侧推封盖系统能减小船体阻力,并降低侧推力损失,其水动力性能更佳。

A four-piece curved bow thruster cover system for the bow thruster of a ship is designed,which includes two parts:curved cover plate and tunnel cylinder assembly.Then,from two aspects of hull resistance and transverse thrust loss,the hydrodynamic performance of the ship with grid and curved bow thruster cover is calculated with the help of commercial software FLUENT.The results show that,compared with the grid,the curved bow thruster cover system designed can reduce hull resistance and lateral thrust loss,and its hydrodynamic performance is better.