任意非正交曲线坐标系中湍流的数值计算  

A NUMERICAL CALCULATION OF TURBULENT FLOW IN GENERAL NON-ORTHOGONAL CURVILINEAR COORDINATE SYSTEM

作　　者：李一光[1] 严传俊[1] 王宏基[1] 

机构地区：[1]西北工业大学

出　　处：《航空动力学报》1990年第1期65-68,共4页Journal of Aerospace Power

摘　　要：The expressions of the governing equations of turbulent flow with contravariant physical velocity components in a general non orthogonal curvilinear coordinate system are derived by means of tensor theory.A numerical method and a computer program for turbulent recirculating flow in the general non orthogonal curvilinear coordinate system are developed.Since the velocity and the displacement vectors are decomposed into their contravariant components,the method has the main advantages of its obviousness in physical meanings,easiness in treatment of boundary conditions and the suitability to the numerical calculations of turbulent flow in various complex geometries.The flow fields in some kinds of complex geometries are calculated.The expressions of the governing equations of turbulent flow with contravariant physical velocity components in a general non orthogonal curvilinear coordinate system are derived by means of tensor theory.A numerical method and a computer program for turbulent recirculating flow in the general non orthogonal curvilinear coordinate system are developed.Since the velocity and the displacement vectors are decomposed into their contravariant components,the method has the main advantages of its obviousness in physical meanings,easiness in treatment of boundary conditions and the suitability to the numerical calculations of turbulent flow in various complex geometries.The flow fields in some kinds of complex geometries are calculated.

关 键 词：湍流 数值计算 曲线坐标系 

分 类 号：V231.3[航空宇航科学与技术—航空宇航推进理论与工程]