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JOURNALS // Vestnik of Saint Petersburg University. Mathematics. Mechanics. Astronomy // Archive

Vestnik of Saint Petersburg University. Mathematics. Mechanics. Astronomy, 2025 Volume 12, Issue 2, Pages 203–227 (Mi vspua351)

TO THE 300TH ANNIVERSARY OF SPSU

Mathematical modeling of nonequilibrium processes on chair of physical mechanics of St. Petersburg State University. Part 2. Modeling of processes in plasma

E. K. Kolesnikov, A. B. Yakovlev

St. Petersburg State University, 7-9, Universitetskaya nab., St. Petersburg, 199034, Russian Federation

Abstract: The paper gives the review of works of employees of chair and laboratory of physical mechanics of St.Petersburg State University from the moment of its establishment in 1986 and till 2024 inclusive, that are devoted to modelling of the non-equilibrium processes in plasma. The basic attention is given several major results: 1) calculation of aerodynamic characteristics of bodies, moving in the rarefied plasma; 2) modelling of process of charging of bodies in space plasma; 3) creation of methods for the description of dynamics of electron beams in comic plasma. The description of calculation methods of aerodynamic characteristics of bodies both without own magnetic field and at its presence is given. There is shown that for the description of process of charging of a cylindrical body in space plasma when taking into account a external magnetic field it is possible to use and analytical methods. Other results are given short enough.

Keywords: modeling, non-equilibrium process, plasma, charging of bodies in plasma, electron beam.

UDC: 533.6; 533.95; 523.62-1/-8

MSC: 76-02; 78A35

Received: 26.08.2024
Revised: 11.11.2024
Accepted: 21.11.2024



© Steklov Math. Inst. of RAS, 2025