V.G.Kuzmenko The simulation of turbulent flow with the fence by different external conditions on the base of hybrid LES/URANS-approach. Part 1 |
Applied hydromechanics, Vol. 17 (89) ¹ 1, (2015) |
| The unsteady three-dimensional turbulent incompressible flow over a rectangular two-dimensional fence 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 Re are 10500, inflow Reynolds number are Reδ={10500; 31500; 52500} for turbulent boundary layer. The number of grid points used in the numerical method was 11407041. 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 zones. |
|
KEY WORDS: turbulent boundary layer, fence, numerical method |
| TEXT LANGUAGE: Russian |