V.G.Kuzmenko Numerical 3-D modelling of turbulent boundary layer on the basis of economical LES-technique |
Applied hydromechanics, Vol. 6 (78) ¹ 1, (2004) |
| The turbulent boundary layer on a flat plate is simulated by economical LES-technique for a Reynolds number of 105, using a finite-difference method.The subgrid scales are parametrized by an "mixed" model. New approximate boundary conditions are applied as the "wall" model. These new boundary conditions give more accurate results than those previously in use and allow reduction of the required CPU time in comparison with another standard LES. The number of grid points used in the economical numerical method was 493. Computer mean velocity profiles and turbulent stresses is good agreement with experimental data. |
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| TEXT LANGUAGE: Russian |