The unsteady flow around a circulation control (CC) airfoil was investigated with Navier-Stokes method,which includes the flow around CC airfoil with pulsating jet,the flow around oscillating CC airfoil,and the flow a...The unsteady flow around a circulation control (CC) airfoil was investigated with Navier-Stokes method,which includes the flow around CC airfoil with pulsating jet,the flow around oscillating CC airfoil,and the flow around oscillating CC airfoil with pulsating jet.Dynamic properties of the flow and the aerodynamic forces were rewaled.展开更多
The two-dimensional, compressible, mass-averaged Navier-Stokes equations are used to investigate hows about a typical circulation control airfoil. The governing equations are solved using the implicit approximate-fact...The two-dimensional, compressible, mass-averaged Navier-Stokes equations are used to investigate hows about a typical circulation control airfoil. The governing equations are solved using the implicit approximate-factorization algorithm of Beam-Warming with a modified algebraic eddy viscosity model. Results are compared with experimental data, and excellent agreement is obtained. The effects of different jet momentum coefficients and angles of attack on the how are studied. The mechanism of genenating large lift by circulation control is discussed.展开更多
基金Present address: Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100080, China.
文摘The unsteady flow around a circulation control (CC) airfoil was investigated with Navier-Stokes method,which includes the flow around CC airfoil with pulsating jet,the flow around oscillating CC airfoil,and the flow around oscillating CC airfoil with pulsating jet.Dynamic properties of the flow and the aerodynamic forces were rewaled.
文摘The two-dimensional, compressible, mass-averaged Navier-Stokes equations are used to investigate hows about a typical circulation control airfoil. The governing equations are solved using the implicit approximate-factorization algorithm of Beam-Warming with a modified algebraic eddy viscosity model. Results are compared with experimental data, and excellent agreement is obtained. The effects of different jet momentum coefficients and angles of attack on the how are studied. The mechanism of genenating large lift by circulation control is discussed.
