Numerical Simulation of Airfoil Vibrations Induced by Turbulent Flow
作者机构:Charles University in PragueFaculty of Mathematics and PhysicsSokolovska 8318675 Praha 8Czech Republic Institute of ThermomechanicsAcademy of Sciences of the Czech RepublicDolejskova 518200 Praha 8Czech Republic Czech Technical University PragueFaculty of Mechanical EngineeringKarlovo nam.1312135 Praha 2Czech Republic
出 版 物:《Communications in Computational Physics》 (计算物理通讯(英文))
年 卷 期:2015年第17卷第1期
页 面:146-188页
核心收录:
学科分类:080704[工学-流体机械及工程] 080103[工学-流体力学] 08[工学] 0807[工学-动力工程及工程热物理] 0704[理学-天文学] 0702[理学-物理学] 0801[工学-力学(可授工学、理学学位)]
基 金:This research was supported under the grants of the Czech Science Foundation No.P101/11/0207(J.Horacek)and 13-00522S(M.Feistauer P.Svacek)
主 题:Fluid-structure interaction flow induced vibrations Reynolds averaged NavierStokes equations turbulence models finite element method coupling algorithm
摘 要:The subject of the paper is the numerical simulation of the interaction of two-dimensional incompressible viscous flow and a vibrating airfoil with large *** airfoil with three degrees of freedom performs rotation around an elastic axis,oscillations in the vertical direction and rotation of a *** numerical simulation consists of the finite element solution of the Reynolds averaged Navier-Stokes equations combined with Spalart-Allmaras or k−ω turbulence models,coupled with a system of nonlinear ordinary differential equations describing the airfoil motion with consideration of large *** time-dependent computational domain and approximation on a moving grid are treated by the Arbitrary Lagrangian-Eulerian formulation of the flow *** to large values of the involved Reynolds numbers an application of a suitable stabilization of the finite element discretization is *** developed method is used for the computation of flow-induced oscillations of the airfoil near the flutter instability,when the displacements of the airfoil are large,up to±40 degrees in *** paper contains the comparison of the numerical results obtained by both turbulence models.