基于开源计算流体力学软件SU2的钝体翼尖涡研究  

Research on blunt body tip vortex based on open source

作　　者：崔青 钱晓辉[2] 刘剑明 SUCUI Qing;QIAN Xiao-hui;LIU Jian-ming(AVIC Aerodynaiviics Research Institute,Shenyang 110034,China;College of Aerospace Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China;School of Mathematics and Statistics,Jiangsu Normal University,Xuzhou 221116,China)

机构地区：[1]中国航空工业空气动力研究院,沈阳110034 [2]南京航空航天大学航空学院,南京210016 [3]江苏师范大学数学与统计学院,江苏徐州221116

出　　处：《沈阳航空航天大学学报》2020年第3期24-32,共9页Journal of Shenyang Aerospace University

摘　　要：通过开源多物理场模拟与设计集成软件平台SU2(Stanford University Unstructured),使用格点型有限体积格式,研究了来流攻角12°,雷诺数为Re=2×10^6下NACA0012半矩形翼扰流问题。通过涡向量Rortex/Liutex揭示了方形翼尖纯刚体旋转涡的形成与发展,次涡与主涡的合并,并与涡量进行了比较。结果表明:钝体矩形翼翼尖的两个锋利奇异边产生Rortex/Liutex涡,且Rortex/Liutex表示的次涡与主涡的合并与相互作用要晚于涡量;此外,除了奇异边外的翼尖侧面,虽具有较高涡量,但贡献了流体的剪切或拉伸。Based on Stanford University unstructured( SU2),which was an open-source multi physical field simulation and design integrated software platform,and by using the lattice finite volume scheme,the problem of flow disturbance of NACA0012 tip at AoA 12 and the Reynolds number Re = 2 × 10^6 was studied. By Rortex/Liutex vortex vector,the formation and evolution of the rigid vortex were described,and the merge of primary vortex and secondary vortex was show n. In addition,the evolution of the tip vortex was described by vorticity. The results show that the squared tip presents two sharp edges which produces multiple rigid Rortex/Liutex vortex,but it will delay the merge of secondary vortex and primary vortex,and the shear layer is primary in sidewall region.

关 键 词：Rortex/Liutex 方形翼尖涡 SU2 非结构网格 数值实验 

分 类 号：V211.3[航空宇航科学与技术—航空宇航推进理论与工程]