网格变形在俯仰振荡翼型中的应用  

A CFD Method of Containing Structure Deformation

作　　者：石磊[1] 闫溟[1] 杨云军[1] 周伟江[1] 

机构地区：[1]中国航天空气动力技术研究院,北京100074

出　　处：《航空计算技术》2013年第6期69-71,共3页Aeronautical Computing Technique

摘　　要：为解决航空器结构变形问题,在研究相关非定常流场基础上,建立了包含结构变形的非定常流场数值求解方法,运用无限插值法(TFI)生成任意时刻的非定常动态网格,通过与刚性动网格比较,证明了方法的可行性,并以NACA0012翼型为算例,对翼型俯仰振荡运动中表面柔性变形问题进行了数值模拟,发现俯仰振荡中叠加变形形式为一阶振型时,可以明显地提高升力、增加动稳定、提高升阻比。Based on unsteady Navier-Stokes equations, a CFD method containing structure mesh deforma- tion was researched using TFI for displacements. An oscillatory airfoil was calculated using rigid and de- forming dynamic grid. By comparing with experimental data, the deformation method behaves as well as the rigid method. Then the paper presents a preliminary study of an oscillatory morphing problem using NACAO012 airfoil. The results demonstrate that：lift, dynamic stability and lift- to- drag ratio are increased when the first- order vibration mode was superimposed.

关 键 词：非定常 俯仰振荡 变形网格 无限插值 

分 类 号：V211[航空宇航科学与技术—航空宇航推进理论与工程]