ExB mean flows in finite ion temperature plasmas

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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 shows 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.
Original languageEnglish
Article number062309
JournalPhysics of Plasmas
Volume24
Issue number6
Number of pages12
ISSN1070-664X
DOIs
Publication statusPublished - 2017

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