低攻角下二维软帆空气动力特性数值模拟  

Numerical Simulation on Aerodynamic Characteristics of Two-Dimensional Flexible Sail

作　　者：孙海素[1] 徐明彩[2] 丁勇[3] 张海华[1] 

机构地区：[1]中国船舶科学研究中心上海分部,上海200011 [2]中国舰船研究设计中心上海分部,上海201108 [3]哈尔滨工程大学船舶工程学院,哈尔滨150001

出　　处：《中国造船》2011年第A01期76-82,共7页Shipbuilding of China

摘　　要：针对软帆形状随帆面上下压力分布改变而改变的特点,基于涡层分布面元法原理,总结前人研究经验,提出一种可靠的数值模拟方法,编制计算程序,对低攻角情况下二维弓型薄翼软帆在不可压缩、理想流体中的空气动力特性进行数值模拟。结果表明:该方法在低攻角下的模拟结果与试验值吻合良好。这一结果对于进一步开展软帆空气动力特性的数值预报和理论分析研究具有重要参考价值。The aerodynamic characteristics of two-dimensional arched thinwing flexible sail, which sail-wing shape changes as the wind force and wind direction, are hard to analyse. Based on vortex distribution panel method theory, authors sum up the experience of predecessors, advance a improved simulation method to analyse the aerodynamic characteristics of two-dimensional arched thinwing flexible sail under low angles of attack in uncompressible ideal fluid and programe the method. Compared with the experimental results, it is found that the calculated results of this method is acceptable. The research results will be helpful in the further study of the numerical simulation and academic analyse.

关 键 词：船舶 舰船工程 二维弓型薄翼软帆 空气动力特性 数值模拟 面元法 

分 类 号：U661.1[交通运输工程—船舶及航道工程]