基于CFD的风帆助航船阻力特性研究  

Resistance characteristic research of the sail-assisted ship based on the CFD

作　　者：李冬琴[1,2] 李季 郑鑫 李国焕 戴晶晶 LI Dongqin;LI Ji;ZHENG Xin;LI Guohuan;DAI Jingjing(School of Naval Architecture&Ocean Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003,China;Jiangsu Modern Shipbuilding Technology,Co.Ltd.,Zhenjiang 212003,China)

机构地区：[1]江苏科技大学船舶与海洋工程学院,镇江212003 [2]江苏现代造船技术有限公司,镇江212003

出　　处：《江苏科技大学学报（自然科学版）》2018年第1期13-20,共8页Journal of Jiangsu University of Science and Technology:Natural Science Edition

基　　金：国家自然科学基金资助项目(51509114);江苏省科技成果转化专项基金资助项目(BA2015042);江苏高校高技术船舶协同创新中心/江苏科技大学海洋装备研究院资助项目(HZ2016015)

摘　　要：现有关于风帆船的研究大多针对帆型的优化,而对风帆助航船阻力特性的研究相对较少.文中以风帆助航船的阻力预报为研究背景,利用数值模拟软件STAR CCM+,对风帆船的阻力特性进行模拟研究.首先,选取椭圆弧形风帆,利用重叠网格技术模拟计算出不同风向、不同几何攻角下的风帆受力情况.然后,将帆与船作为一个整体,应用VOF方法对不同风向、不同漂角下风帆船的阻力性能进行预报.在研究中得到了不同风向下获得较好助推性能所对应的几何攻角;发现了船舶阻力随漂角的增大而增大,且增大的幅度越来越大;得出了该风帆船在设计航速下,通过风帆角度的调整可使阻力减少23.3%.Most of the researches of the sail-assisted ship are focused on optimizing the sail,and the resistance characteristic researches are very few.In this paper,the research is based on the ship resistance prediction,using numerical simulation software STAR CCM+,to discuss the ship′s resistance characteristics.First of all,we choose the elliptic art sail and use the overlap grid to calculate the thrust under different sail′s attack angles and different wind directions.Then,we treat the sail and the boat as a whole,using the method of VOF to forecast the resistance of the ship under different wind angles and different drift angles.We find how to adjust the attack angle to obtain larger thrust for different wind directions.It is found that the ship resistance increases with the drift angle,and the speed of the growth becomes larger and larger.At the design speed,the resistance of the ship can be reduced by 23.3%by adjusting the sail′s angle.

关 键 词：阻力特性 几何攻角 漂角 

分 类 号：U664[交通运输工程—船舶及航道工程]