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Energy exchanges in reconnection outflows
KTH, Skolan för datavetenskap och kommunikation (CSC), High Performance Computing and Visualization (HPCViz).ORCID-id: 0000-0003-0639-0639
2017 (Engelska)Ingår i: Plasma Physics and Controlled Fusion, ISSN 0741-3335, E-ISSN 1361-6587, Vol. 59, nr 1, artikel-id 014019Artikel i tidskrift (Refereegranskat) 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.

Ort, förlag, år, upplaga, sidor
2017. Vol. 59, nr 1, artikel-id 014019
Nyckelord [en]
reconnection, secondary reconnection, drift instabilities, interchange instability, kink instability, energy exchanges
Nationell ämneskategori
Fusion, plasma och rymdfysik
Identifikatorer
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, id: diva2:1056014
Anmärkning

QC 20161213

Tillgänglig från: 2016-12-13 Skapad: 2016-11-28 Senast uppdaterad: 2017-11-29Bibliografiskt granskad

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Av författaren/redaktören
Markidis, Stefano
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High Performance Computing and Visualization (HPCViz)
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Plasma Physics and Controlled Fusion
Fusion, plasma och rymdfysik

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