Relaxation processes in completely ionized plasma in generalized Lorentz model
Journal Title: Journal of Physics and Electronics - Year 2018, Vol 26, Issue 2
Abstract
On the basis of the Landau kinetic equation a generalized Lorentz model is proposed, which contrary to the standard model, considers ion system as an equilibrium one. For electron system kinetic equation of the Fokker-Planck type is obtained. In the Bogolyubov method of the reduced description, which is based on his idea of the functional hypothesis, basic equations for electron hydrodynamics construction with account for temperature and macroscopic velocity relaxation processes (kinetic modes of the system) is elaborated. The obtained equations are analyzed near the end of the relaxation processes when the theory has an additional small parameter. The main in small gradients approximation is studied in details, it corresponds to the description of relaxation processes in a spatially uniform case. The obtained equations are approximately solved by the method of truncated expansion in the Sonine polynomials. The velocity and temperature relaxation coefficients are discussed in one- and two-polynomial approximation. As a result the relaxation coefficients are calculated in one-polynomial approximation.
Authors and Affiliations
S. A. Sokolovsky, A. I. Sokolovsky, І. S. Kravchuk, O. A. Grinishin
Keywords
Related Articles
- EP ID EP631715
- DOI 10.15421/331818
- Views 150
- Downloads 0
Electrical characteristics of two-layer structure varistor ceramics–PPTC nanocomposite
Electrical characteristics of experimental two-layer structure based on layers of varistor ceramics and polymer nanocomposite with carbon filler being in thermal contact are studied. A layer of such polymer nanocomposite...
Relaxation processes in completely ionized plasma in generalized Lorentz model
On the basis of the Landau kinetic equation a generalized Lorentz model is proposed, which contrary to the standard model, considers ion system as an equilibrium one. For electron system kinetic equation of the Fokker-Pl...
Effect of thermal treatment on structure and leakage current of Na0.5Bi0.5TiO3 thin films
Na0.5Bi0.5TiO thin films were grown on heated to 200°С Pt/TiO2/SiO2/Si substrates by ex-situ method with high-frequency (13.56 MHz) magnetron deposition. Thermal treatment of the films was carried out at 650°С, 700°С and...
On the quantization of charged black holes with allowance for the cosmological constant
The paper considers a spherically symmetric configuration of the gravitational and electromagnetic fields with allowance to the cosmological constant, and its quantization. After dimensional reduction, the original actio...
Investigation of the photoluminescence spectra of rare-earth elements in pores of an opal matrix
The main idea of this paper is researching the light emission of Eu3+ and Dy3+ in an opal matrix. The opal synthesis was carried out using Stöber method. The size of globules calculated from the transmission spectrum of...