Features of the implementation of numerical methods for the study of the wind flow over combat aircraft in the region of the limit of angle of attack flight regimes

Abstract

The features of the use of the finite volume method for solving the problem of computational aerodynamics are considered. The choice of low-low-Reynolds mathe       matical turbulence model to determine the pair-meters of the separation-vortex flow structure, which is realized in the mode area with the angle of attack, is substantiated. The results of methodological studies on the choice of parameters of the computational grid, in particular, the grid convergence, by comparing the solutions obtained on four grids with different number of cells. The estimation of the reliability of the results of numerical calculations based on their comparison with experimental data obtained in the wind tunnel.