绕三角翼旋涡流动的数值模拟  

Numerical Simulation of Vortex Flows over a Delta Wing

作　　者：李椿萱[1] 葛立新[2] 

机构地区：[1]北京航空航天大学 [2]北京应用物理与计算数学研究所计算物理实验室

出　　处：《空气动力学学报》1998年第1期132-139,共8页Acta Aerodynamica Sinica

摘　　要：本文通过高清晰度的Ｎ－Ｓ方程数值模拟对绕大后掠三角机翼的旋涡流动结构及旋涡破裂进行了研究，给出了机翼背风面上复杂的旋涡流动结构，绘制了流动横截面上的截面流线。算例的计算采用了隐式近似因子分解格式。通过算例的计算结果结合拓扑分析理论，对亚声速三角翼背风区主涡及二次涡结构的发展、演变规律进行了探讨。Flow structures and the nature of vortex breakdown over a delta wing with large swept angle are studied by means of a high resolved simulation through Navier Stokes equations solver.The complex flow structures over the leeside of the delta wing are presented in this paper,and the cross section streamlines are sketched.The solver was developed using the AF scheme.The topological structures and the development of the main and secondary vortices of subsonic flows over the leeside of the delta wing are then analyzed.

关 键 词：旋涡流动 旋涡破裂 截面流线 三角翼 数值模拟 

分 类 号：V211.41[航空宇航科学与技术—航空宇航推进理论与工程] V211.3