Pressure tensor in the presence of velocity shear: Stationary solutions and self-consistent equilibria
Abstract
Observations and numerical simulations of laboratory and space plasmas in almost collisionless regimes reveal anisotropic and non-gyrotropic particle distribution functions. We investigate how such states can persist in the presence of a sheared flow. We focus our attention on the pressure tensor equation in a magnetized plasma and derive analytical self-consistent plasma equilibria which exhibit a novel asymmetry with respect to the magnetic field direction. These results are relevant for investigating, within fluid models that retain the full pressure tensor dynamics, plasma configurations where a background shear flow is present.
- Publication:
-
Physics of Plasmas
- Pub Date:
- November 2014
- DOI:
- 10.1063/1.4901570
- arXiv:
- arXiv:1410.1286
- Bibcode:
- 2014PhPl...21k2109C
- Keywords:
-
- Physics - Plasma Physics;
- Physics - Space Physics
- E-Print:
- 13 pages, 7 figures