格栅翼外形参数对气动特性影响的数值计算研究  

Numerical Calculation Study of Influence of Grid Fin Configuration Parameters on Aerodynamic Characteristics

作　　者：吴小胜[1] 雷娟棉 吴甲生[1] 

机构地区：[1]北京理工大学宇航科学技术学院,北京100081

出　　处：《兵工学报》2007年第12期1468-1472,共5页Acta Armamentarii

基　　金：国家部委预研资助项目(4013130302)

摘　　要：用计算流体力学方法系统地研究了格栅翼的格数、格壁厚度、格壁前后缘倒角对格栅翼气动特性的影响。结果表明:格数增加使格栅翼的阻力和升力都增大,而阻力增大得更显著;格壁厚度对阻力影响较大,对升力影响较小,格壁厚度增大,格栅翼的阻力显著增大;格壁前后缘倒角使阻力明显减小,而对升力影响不大。The influence of grid number,web thickness and web cross-section shapes on the aerodynamic characteristics of grid fins was studied by a numerical simulation method based on computational fluid dynamics.The result indicates that when the numbers of grids are increased,both drag force and lift force are increased,the drag force is more significantly affected by grid numbers;the drag force is significantly affected by web thickness,the lift force is less affected by that,and the larger the web thickness is,the larger the drag force is;shaping the web cross-section of grid fin can largely decrease the drag force of grid fin, but less affect the lift force.

关 键 词：流体力学 格栅翼 气动特性 数值计算 风洞实验 

分 类 号：V211[航空宇航科学与技术—航空宇航推进理论与工程]