The BBGKY hierarchy is used to derive a generalization of the Lenard-Balescu plasma kinetic equation that accounts for wave-particle scattering due to instabilities that originate from discrete particle motion. Application to convective instabilities is emphasized for which the growing waves either propagate out of the domain of interest or modify the particle distribution to reduce the instabi...

Recent observations have indicated that in addition to the classical “inverted-V” type electron acceleration, auroral electrons often have a field-aligned distribution that is broad in energy and sometimes shows time dispersion indicating acceleration at various altitudes up the field line. Such acceleration is not consistent with a purely electrostatic potential drop, and suggests a wave heati...

Magnetic reconnection is a fundamental process in laboratory, magnetospheric, solar and astrophysical plasma, whereby magnetic energy converted into heat, bulk kinetic fast particle energy. Its nature two dimensions much better understood than three (3D), where its character completely different has many diverse aspects that are currently being explored. Here we focus on the magnetohydrodynamic...

Kinetic theory is used to investigate the stability of ballooning-interchange modes in the high pressure geotail plasma. A variational form of the stability problem is used to compare new kinetic stability results with MHD, FastMHD, and Kruskal-Oberman stability results. Two types of drift modes are analyzed. A kinetic ion pressure gradient drift wave with a frequency given by the ion diamagnet...

This paper is devoted to the study of collisionless multicomponent plasma expansion in vacuum discharges. Based on fundamental principles physical kinetics formulated for discharge plasma, an answer given following question: What main mechanism cathode transport from anode, which ensures non-thermal metallic positive ion movement? Theoretical modeling provided based Vlasov–Poisson system equati...

A spatially hybrid fluid-kinetic approach for the efficient simulation of plasma-edge neutrals is extended with a kinetic-fluid condensation process and an automated to select fluid or kinetic treatment at each point along divertor targets. With proposed methods, dominant charge–exchange reaction can be largely removed from neutral simulation. The methods achieve quantitative agreement standard...