Volume 7, 2015Progress in Flight Physics – Volume 7
|Page(s)||45 - 66|
|Published online||08 June 2015|
Calculations of unsteady flows around high-lift configurations based on a zonal approach
Central Aerohydrodynamic Institute (TsAGI) 1 Zhukovsky Str., Zhukovsky, Moscow Region 140180, Russia
Zonal approach for unsteady Reynolds-averaged Navier-Stokes (URANS) problem solution is described. Original feature of this approach is to use Courant-Friedrichs-Levi number CFL ∼ 1 in the main part of calculation domain excluding thin part of boundary layer. It is achieved by using explicit numerical scheme with fractional time stepping in the main part of calculation domain. In the near-wall zone of boundary layer, implicit dual stepping method is used. In addition to zonal approach, fully implicit method with dual stepping technology is also implemented. The methods are verified in comparison with the results of test case data obtained by consortium participants within DeSiReH FP-7 project.
© Owned by the authors, published by EDP Sciences, 2015