进气道内外三维跨声速流场的计算  

Calculation of Three-Dimensional Transonic Flow Around an Inlet

作　　者：洪流[1] 林超强[1] 

机构地区：[1]航天工业总公司十一所,西北工业大学

出　　处：《空气动力学学报》1995年第2期186-191,共6页Acta Aerodynamica Sinica

摘　　要：本文用守恒型全速势方程模拟进气道内外的三维跨声速流场，并用高效ＡＦ２近似因式分解格式进行迭代求解。计算网格用近似保角变换法生成。文中还给出了带中心锥和不带中心锥几种进气道流场的计算结果，以及与实验结果的比较。The highly efficient AF2 algorithm is used to calculate three-dimensional transonic flowfields about inlets.The flowfield is de-termined by solving the conservative full potential equations on a body-fitted curvilinear computational mesh generatted by a nearly conformal-mapping method which will be discussed briefly in this article,The grid generation method developed in this article can be used to generated body-fitted computational mesh about inlets with or without centerbody. It’s very simple but proved to be efficient.At the centerline of the inlet,the full potential equations and the AF2 algorithm in Cartesian coordinates system are used locally to overcome the singularity caused by coordinate transfor-mation. The computational results given in the article show that this me-thod is very sucessful.At the end of the article,the detail discussion and comparision of analysis and experiment results are given.

关 键 词：进气道 跨音速流场 全速势方程 计算 

分 类 号：V211.48[航空宇航科学与技术—航空宇航推进理论与工程]