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Numerical simulation of flare energy build-up and release via Joule dissipationA new numerical MHD model is developed to study the evolution of an active region due to photospheric converging motion, which leads to magnetic-energy buildup in the form of electric current. Because this new MHD model has incorporated finite conductivity, the energy conversion occurs from magnetic mode to thermal mode through Joule dissipation. In order to test the causality relationship between the occurrence of flare and photospheric motion, a multiple-pole configuration with neutral point is used. Using these results it is found that in addition to the converging motion, the initial magnetic-field configuration and the redistribution of the magnetic flux at photospheric level enhance the possibility for the development of a flare.
Document ID
19870052713
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Wu, S. T.
(Alabama Univ. Huntsville, AL, United States)
Bao, J. J.
(Alabama, University Huntsville, United States)
Wang, J. F.
(Wuhan University People's Republic of China, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1986
Publication Information
Publication: Advances in Space Research
Volume: 6
Issue: 6 19
ISSN: 0273-1177
Subject Category
Solar Physics
Accession Number
87A39987
Funding Number(s)
CONTRACT_GRANT: NAG8-53
CONTRACT_GRANT: NAS8-33526
CONTRACT_GRANT: NAGW-9
Distribution Limits
Public
Copyright
Other

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