Investigation of the Influence of the Computational Grid for Turbulent Flow

The article provides basic information about the principles of calculations based on the solution of the system of Navier-Stokes equations by the control volume method, and the relationship between velocities and pressure was found using the SIMPLE procedure. For the numerical solution of this problem, schemes against the flow of A.A. Samarsky and McCormack were applied. The results were compared with each other and with experimental data. The Spalart-Allmares model is used for turbulence. On the example of a two-dimensional flow model in a straight channel, the influence of the quality of the grid and turbulence models on the distribution of flow parameters inside the calculated zone and the integral characteristics of the flow is studied