Hybrid numerical model of the plasma flow dynamics in open magnetic systems

Abstract

The report provides a brief overview of the numerical models used to solve plasma physics problems. The necessity of using hybrid models is shown, and a hybrid model that can be used in computer modeling of plasma flows in open magnetic systems is considered in more detail. The features of using hybrid models in two-dimensional cylindrical coordinates are given. To solve the equations of particle motion, the Boris algorithm is considered and its improvement is proposed based on the analytical solution of equations at a time step. We present a number of results of numerical simulation of the interaction of plasma flows obtained on the basis of a hybrid model. The calculations were performed in relation to the conditions of laboratory experiments with laser plasma at the KI-1 facility of the ILF SB RAS and the conditions of the diamagnetic regime at the CAT facility of the INP SB RAS.

Two-dimensional MHD equilibria of diamagnetic bubble in gas-dynamic trap

“…In particular, he demonstrates that the additional axial loss arises in the diamagnetic bubble due to collisionless scattering of ions by magnetic field inhomogeneities. Work is also underway to create detailed numerical models of the plasma in the diamagnetic trap [15][16][17].…”