Modelling of dusty plasma properties by computer simulation methods

Thermodynamic Properties of Dusty Plasma on the Basis of the Langevin Dynamics

“…For example, methods of molecular dynamics were applied to investigate the processes of the charge formation of dust particles and to describe charge fluctuations that influence equilibrium in the experimental facilities [6]. Simulations of particle dynamics with dissipation in buffer plasma were also conducted [7,8].…”

Structural properties of dusty plasma in direct current and radio frequency gas discharges

“…In the present work, simulations of the dusty particle dynamics was made within the Langevin dynamics. 30 A cubic box of the edge L with periodical boundary conditions imposed on it and on the replicas was considered. The motion of dusty particles ͑macroparticles͒ is described by the following equations:…”

“…where A is determined by the fluctuation-dissipative theorem, 30 ͑t͒ is the stochastic number with normal distribution within the range 0 -1, the dimensionless friction parameter is = fr / d . Initial distribution of the coordinate and velocity components for the particles is taken as random with velocity component distribution according to the Gauss law at a given temperature.…”

Shear Viscosity of Dusty Plasma Obtained on the Basis of the Langevin Dynamics

“…is θ = ν fr /ω p ; determination of random forces is given in [6]. We used a thermostat to assure constant temperature in the system.…”

“…At calculation we took the average distance between the particles to be a = 0.06 cm. According to formulas (4),(5), (6), shear viscosity η * can be presented as a sum of three terms -kinetic, potential and crossing ones (see Ref. [1]).…”