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.
出处
《中国造船》
EI
CSCD
北大核心
2011年第A01期76-82,共7页
Shipbuilding of China
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
ship engineering
two-dimensional arched thinwing flexible sail
aerodynamic characteristics
numerical simulation
panel method
