ExB mean flows in finite ion temperature plasmas
Plasma Physics
2017-08-02 v4
Abstract
The impact of ion pressure dynamics on E x B mean flows is investigated. Using a simplified, two-dimensional, drift ordered fluid model in the thin-layer approximation, three stresses in addition to the Reynolds stress are shown to modify the E x B mean flow. These additional terms in the stress tensor all require ion pressure fluctuations. Quasi-linear analysis show that these additional stresses are as important as the Reynolds stress, and hence must be taken into account in analysis of transport barriers in which sheared E x B mean flows are key ingredients.
Keywords
Cite
@article{arxiv.1604.04124,
title = {ExB mean flows in finite ion temperature plasmas},
author = {J. Madsen and J. Juul Rasmussen and V. Naulin and A. H. Nielsen},
journal= {arXiv preprint arXiv:1604.04124},
year = {2017}
}