Finite system size effects on Drift Wave stability
Plasma Physics
2014-02-28 v1
Abstract
Unstable electrostatic resistive modes, driven by density gradients, are identified in a bounded sheared slab. The boundary conditions play a crucial role and are shown to change the nature of the problem, which is related to so called "universal" mode. The dispersion relation and the structure of the eigenmodes of the instability are derived and are shown to depend on a limited set of dimensionless parameters. The occurrence and possible impact of these modes on numerical simulations and actual plasmas are discussed.
Cite
@article{arxiv.1310.3667,
title = {Finite system size effects on Drift Wave stability},
author = {F. Militello and M. Ottaviani and A. Wynn},
journal= {arXiv preprint arXiv:1310.3667},
year = {2014}
}
Comments
27 pages, 10 figures. The following article has been submitted to Physics of Plasmas. After it is published it will be found at http://pop.aip.org/pop