Model Kinetic Description For Many-Component Plasma

25th IUPAP Conference on Computational Physics

物理学;计算机科学

Belyi, V.V.^1

IZMIRAN, Russian Academy of Sciences, Troitsk, Moscow, Russia^1

关键词: Boltzmann;    Collision integral;    Collision operators;    H-theorem;    Linearized operators;    Model kinetics;    Multi-component systems;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/510/1/012043/pdf
DOI  :  10.1088/1742-6596/510/1/012043

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

A consistent derivation of the model linearized collision operator for a multicomponent system is presented. In these results an ambiguity in the choice of coefficients is eliminated, in contrast to the BGK type models. A technique for reconstruction of the model collision integral form based on a known expression for the model linearized operator is proposed. It is shown that the model collision integral in the local (not complete) equilibrium approximation does not contain a complicated exponential, that is common for the BGK type integrals. Boltzmann's H-theorem is proved for our model.