Wake effects of a stationary charged grain in streaming magnetized ions
arXiv:1805.00173 · doi:10.1103/PhysRevE.98.023206
Abstract
A systematic numerical study of wake potential and ion density distribution of a single grain in streaming ions under the influence of the magnetic field applied along flow is presented. Strong magnetic field introduces ion focus depletion behind grain facilitating the entrance of electrons far away in the downstream towards the grain. It is shown that the magnetic field suppresses the amplitude of wake potential and modifies the ion density distribution substantially. The wake peak potential and position characteristics, and density distribution of plasma constituents in the presence of magnetic field and charge-exchange collisions for the subsonic, sonic, and supersonic regime is also delineated. In the subsonic regime, simulations demonstrate the accumulation of ions near dust grain in the transverse direction while complete suppression of oscillations in the transverse direction takes place for sonic and subsonic regime.
arXiv comment8 pages
References in corpus (6)
- On the Wake Structure in Streaming Complex Plasmas
- Collisional Effects on Nonlinear Ion Drag Force for Small Grains
- Interparticle attraction in 2D complex plasmas
- Screened Coulomb potential in a flowing magnetized plasma
- Kinetic Electron and Ion Instability of the Lunar Wake Simulated at Physical Mass Ratio
- Collision induced amplification of wakes in streaming plasmas