V.G.Kuzmenko The simulation of turbulent flow with a suction behined the bar on the basis of hybrid LES/URANS-approach |
Applied hydromechanics, Vol. 16 (88) ¹ 2, (2014) |
| The unsteady three-dimensional turbulent incompressible flow over a rectangular two-dimensional fence with a suction on flat plate in a boundary layer is simulated using hybrid LES/URANS-approach, wall models and finite-difference method. The aspect ratio (height/length) of the fence are 4, fence Reynolds number of 10500, inflow Reynolds number of 10500 for turbulent boundary layer, suction velocity Vots={0;-0.04;-0.16;-0.24}. The number of grid points used in the numerical method was 8171001. The flow near the walls is simulated by URANS with K-ε-πij turbulence model. The simulation were performed to study the mean velocity, z-time-averaged streamlines and vorticity, size of a recirculation zons. |
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KEY WORDS: turbulent boundary layer, fence, suction, numerical method |
| TEXT LANGUAGE: Russian |