Numerical Modeling of Individual Plasma Dynamic Characteristics of a Light-Erosion MPC Discharge in Gases

Abstract

A mathematical model is formulated, and a numerical study of magneto-plasma compressor (MPC) discharges in gases for a wide range of changes in the main electrical parameters and the characteristics of the surrounding gas environment is carried out. The performed calculations showed, depending on the role of one or another heating mode (Ohmic, transient, and plasma dynamic), three different types of quasi-stationary spatial distributions of plasma parameters, which can be used to judge the features of the emerging structures and the dynamics of plasma propagation, and, therefore, to speak about the modes of discharge. The features of the radiation plasma dynamic structures and the change in the main parameters of the plasma of an MPC discharge in the transient regime are considered.

Simulation of Parameters of Plasma Dynamics of a Magneto Plasma Compressor

“…The goal of this research is the development of a mathematical model as well suited as possible to the experimental conditions and the systematic numerical study of discharges in gases for a wide range of variation in basic parameters of the magneto plasma compressor and the ambient gas environment based on this model. The plasma formation processes of a magneto plasma compressor discharge in gas are generally three dimensional and some fluctuations are caused both by spatial and temporal inhomogeneity [15][16][17][18][19][20][21][22][23][24][25]. The full model is presented in the literature [12,14,19].…”

“…The plasma formation processes of a magneto plasma compressor discharge in gas are generally three dimensional and some fluctuations are caused both by spatial and temporal inhomogeneity [15][16][17][18][19][20][21][22][23][24][25]. The full model is presented in the literature [12,14,19].…”

Mathematical Modeling of Structure and Dynamics of Concentrated Tornado-like Vortices: A Review

“…These processes facilitate the development of corner flow, the presence of which promotes the generation of vertical vorticity by tilting horizontal vorticity near the ground (i.e., through the in-andup mechanism). Plasma vortexes are the subject of a separate study and require special consideration [142][143][144][145].…”

Computational and Experimental Modeling in Magnetoplasma Aerodynamics and High-Speed Gas and Plasma Flows (A Review)

“…However, it should be remembered that the MPC discharge in practice has a spatial 3D gas-dynamic structure. This structure approximately (there is a difference: there is a cumulation zone near the central electrode) corresponds to the flow structure in an underexpanded gas jet [119,120] flowing into a flooded space. For example, in a radially inhomogeneous plasma flow incident on a gas barrier, not a straight line arises, as was considered above (in the 1D approximation), but a conical magnetogasdynamic shock wave, in front of which the velocity component normal to the boundary with the gas is triggered and the pressure and plasma temperature increase.…”