MODERN APPROACHES TO NUMERICAL MODELING OF TURBULENT FLOWS

Annotatsiya

Turbulent flows are characterized by complex and highly irregular motion, making their accurate numerical modeling one of the important challenges in computational fluid dynamics. This paper examines modern approaches to the numerical modeling of turbulent flows, with particular emphasis on the Reynolds-Averaged Navier–Stokes (RANS), Large Eddy Simulation (LES), and Direct Numerical Simulation (DNS) methods. The main principles, advantages, limitations, and areas of application of these approaches are analyzed. Particular attention is given to the development of computationally efficient numerical methods, turbulence models, and algorithms for improving the accuracy and stability of simulations. The application of modern numerical techniques provides opportunities to obtain more reliable information about the velocity field, pressure distribution, energy dissipation, and other characteristics of turbulent flows. The results of the analysis demonstrate that the choice of an appropriate modeling approach depends on the physical characteristics of the flow, computational resources, and required level of accuracy.