中文摘要：

为了研究大型水面船舶船桨干扰作用对螺旋桨的水动力性能的影响,探讨船后螺旋桨的布置设计原则,以某大型四桨水面船舶为研究对象,基于RANS（Reynolds-averaged Navier-Stokes）方法,建立了船桨整体计算模型,重点研究了螺旋桨的相对纵向和横向布置位置的变化对螺旋桨水动力性能的影响.数值计算结果表明：对于四桨船舶,船后螺旋桨的水动力性能对螺旋桨的纵向位置移动不是很敏感,而对螺旋桨横向位置移动则比较敏感,应当尽量避免使同侧两螺旋桨的盘面中心横向距离小于1倍螺旋桨直径.

英文摘要：

In order to study hull-propeller interaction and the design principle of propeller arrangement behind the hull,a large ship equipped with four propellers was studied,and a mathematical model for computing all the propellers was established based on Reynolds-averaged Navier-Stokes（RANS）,considering the effect of the propellers＇ relative longitudinal and transverse position change on the propeller hydrodynamic performance.The numerical results show that for a large ship equipped with four propellers the hydrodynamic performance of propellers behind the hull is not very sensitive to the longitudinal position change of the propellers but sensitive to the transverse position change.In addition,the transverse distance between the centers of two fore-and-aft propeller disks on the same side should be positioned farther than one diameter of a propeller.