The numerical simulation of the flow of vehicles by turbulent flow

Abstract

The creation of advanced transportation vehicles moving on new physical principles is an important task for designers. The turbulent state of the atmosphere and the instability of the kinematic parameters of the air environment complicate the problem. To date, mathematical modeling of turbulent flows remains one of the most challenging problems in fluid and gas mechanics. Reliable prediction of the characteristics of turbulent flows is an extremely important scientific problem. Further search for ways and development of new methods is necessary. A methodology, algorithms, algorithms, and a set of programs for solving the problem of vehicle aerodynamics have been developed.
The software package is written in the Fortran-95 programming language. The Reynolds-averaged Navier-Stokes equations were used with the Spalart-Allmaras turbulence model in the DES implementation. A number of problems were solved numerically. The calculations and their comparison with the results of experimental studies have confirmed the efficiency of the methodology and the developed set of programs.