|
|
Proudění kolem profilu v kanále s dynamickými účinky
Fürst, J. ; Honzátko, R. ; Horáček, Jaromír ; Kozel, K.
The work deals with a numerical solution of steady and unsteady 2D inviscid incompressible flow over the profile NACA 0012 in a channel. The flow is described by the system of Euler equations. Cell-centered finite-volume scheme at quadrilateral C-mesh is used. Steady state solutions and also unsteady flows caused by the prescribed oscillations of the profile were computed. The method of artificial compressibility and the time dependent method are used for computation of the steady state solution.
|
|
|
Steady and unsteady flow over a profile in a channel
Honzátko, R. ; Horáček, Jaromír ; Kozel, K.
The work deals with numerical solution of 2D inviscid incompressible flow over the profile NACA 0012 in a channel. The finite volume method in a form of cell-centered scheme at quadrilateral mesh is used. Governing system of equations is the system of Euler equations. Numerical results achieved at H-mesh and C-mesh are compared. The work presents computation of the steady states of the flow and also unsteady flow influenced by the prescribed oscillating behaviour of the profile.
|
|
| |
|
|
Nonlinear formulationof airfoil vibration for aero-hydroelastic calculations
Horáček, Jaromír
In the most of well known publications on aeroelasticity it is not possible to find any derivation of the airfoil section vibration for large amplitudes. The contribution presents fundamental nonlinear equations of motion usable in calculations of aeroelastic instability boundaries of airfoils and nonlinear boundary conditions of impermeability on the airfoil surface vibrating in ideal flowing fluid.
|
|
| |
|
| |
|
|
Numerické řešení proudění kolem vibrujícího leteckého profilu
Honzátko, R. ; Horáček, Jaromír ; Kozel, K.
The work deals with numerical solution of 2D inviscid and viscous incompressible flow over the airfoil NACA 0012 in a channel. The finite volume method with cell-centered schemes at quadrilateral C-mesh is used. Governing equations are the Euler equations in the case of inviscid flow and Navier-Stokes equations in the case of viscous flow. The small disturbance theory applied to a numerical solution of unsteady flow is mentioned and the brief introduction is also given to the ALE method.
|
guest ::
