A D Ermakov (Institute for Computer Aided Design of the Russian Academy of Sciences) :
Articles:
533.6.011.6 Numerical simulation of supersonic flow around a parachute with a head body
Fortova S. V. (Institute for Computer Aided Design of the Russian Academy of Sciences), Ermakov A. D. (Institute for Computer Aided Design of the Russian Academy of Sciences)
doi: 10.18698/2309-3684-2024-4-7892
Many atmospheric and oceanic phenomena demonstrate the features of quasi-two-dimensional turbulence that occurs in the presence of rotational force. The study of vortex formation processes in such systems is conditioned by the need to develop qualitative forecasting of the occurrence of cyclones and anticyclones. These weather phenomena are geostrophic flows that can be described within the framework of quasi-two-dimensional turbulence. In this paper, based on numerical modeling of the Navier-Stokes system of equations, the problem of forming coherent vertical structures in a cubic cell in the presence of rotation (Coriolis force) and a constantly acting external force (pumping) is investigated. In the course of numerical experiments, depending on the values of the rotational force and the pumping force, several types of flows were obtained — a chaotic mode, the mode of occurrence of several cyclone vortices and the mode of occurrence of one large cyclone with an anticyclone inside a cyclonic region (“cyclone-anticyclone”).
Фортова С.В., Ермаков А.Д. Численное моделирование квази-двумерных турбулентных течений в замкнутой кубической ячейке. Математическое моделирование и численные методы, 2024, № 4, с. 78–92.