舱盖气动参数的数值计算  

Numerical simulation of aerodynamic coefficients of the aircraft canopy

作　　者：韩海鹰[1] 龚洁[1] 杨春信[1] 杨新明[2] 徐晓东[2] 

机构地区：[1]北京航空航天大学飞行器设计与应用力学系,北京100083 [2]空军第一研究所,北京100076

出　　处：《空气动力学学报》2003年第2期189-195,共7页Acta Aerodynamica Sinica

基　　金：航空科学基金资助项目

摘　　要：本文在对舱盖形状简化的基础上,应用CFD对不同迎角和不同马赫数情况下舱盖周围区域的气体流动进行了数值模拟,分析了迎角以及来流速度对舱盖气动系数的影响。This paper documents the result of study demonstrating the use of analytical computational fluid dynamics method to predict the aerodynamic characteristics and flowfield detail of a typical ejection canopy.With the simplification of the canopy shape,threedimensional NavierStokes codes were used to predict the steady flow characteristics of canopy at various pitch angle and various flow velocity.The study shows that the influence of canopy shape on aerodynamic characteristics is greater than the influence of flow velocity.

关 键 词：舱盖 气动参数 数值计算 弹射座椅救生装置 作战飞机 

分 类 号：V244.214[航空宇航科学与技术—飞行器设计]