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Energy exchanges in reconnection outflows
KTH, School of Computer Science and Communication (CSC), High Performance Computing and Visualization (HPCViz).ORCID iD: 0000-0003-0639-0639
2017 (English)In: Plasma Physics and Controlled Fusion, ISSN 0741-3335, E-ISSN 1361-6587, Vol. 59, no 1, 014019Article in journal (Refereed) Published
Abstract [en]

Reconnection outflows are highly energetic directed flows that interact with the ambient plasma or with flows from other reconnection regions. Under these conditions the flow becomes highly unstable and chaotic, as any flow jets interacting with a medium. We report here massively parallel simulations of the two cases of interaction between outflow jets and between a single outflow with an ambient plasma. We find in both case the development of a chaotic magnetic field, subject to secondary reconnection events that further complicate the topology of the field lines. The focus of the present analysis is on the energy balance. We compute each energy channel (electromagnetic, bulk, thermal, for each species) and find where the most energy is exchanged and in what form. The main finding is that the largest energy exchange is not at the reconnection site proper but in the regions where the outflowing jets are destabilized.

Place, publisher, year, edition, pages
2017. Vol. 59, no 1, 014019
Keyword [en]
reconnection, secondary reconnection, drift instabilities, interchange instability, kink instability, energy exchanges
National Category
Fusion, Plasma and Space Physics
Identifiers
URN: urn:nbn:se:kth:diva-196968DOI: 10.1088/0741-3335/59/1/014019ISI: 000386799100002Scopus ID: 2-s2.0-85006062176OAI: oai:DiVA.org:kth-196968DiVA: diva2:1056014
Note

QC 20161213

Available from: 2016-12-13 Created: 2016-11-28 Last updated: 2016-12-13Bibliographically approved

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Markidis, Stefano
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Citation style
  • apa
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More styles
Language
  • de-DE
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  • nn-NB
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  • Other locale
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Output format
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