CFD法中的动态失速模拟  

Dynamic Stall Predictions by CFD Method

作　　者：陈文轩[1] 

机构地区：[1]中国直升机设计研究所,景德镇333001

出　　处：《直升机技术》2008年第3期55-68,共14页Helicopter Technique

摘　　要：本文介绍了CFD动态失速模拟所需要捕捉的关键物理,CFD法一般情况和较先进的CFD法,最后重点介绍了CFD法动态失速模拟的当前水平。总的来说在动态失速预测方面,CFD法优于综合法,CFD/CSD耦合结果与试验结果之间的吻合度还是可以接受的。俯仰力矩曲线的相位、大小和形状与试验数据吻合得较好,耦合解与试验数据之间的主要偏差在于法向力预测上。This paper describes the key physics which need to be captured for dynamic stall predictions,CFD mothed and advanced CFD method.Final,describes with emphasis the State of Art of CFD to predict dynamic stall.Overall,dynamic stall predictions,CFD method is better than comprehensive analysis method.The agreement between flight test and CFD/CSD coupled results is respectable.The phase,magnitude,and shape of the pitching moments curves are in good agreement with the test data.The major discrepancies between flight test and the coupled solution are in normal force prediction.

关 键 词：动态失速 计算流体力学 直升机 旋翼 

分 类 号：V211.52[航空宇航科学与技术—航空宇航推进理论与工程]