Bulletin of the American Physical Society
64th Annual Meeting of the APS Division of Plasma Physics
Volume 67, Number 15
Monday–Friday, October 17–21, 2022; Spokane, Washington
Session UP11: Poster Session VIII: In-Person, Hall A (2:00-3:30pm) and Virtual Poster Presentations (3:45-5:00pm)
MFE: Whole Device Modeling, High Field Tokamaks, Tokamak Physics, DIII-D
FUND:Reconnection, Turbulence
2:00 PM - 5:00 PM
Thursday, October 20, 2022
Room: Exhibit Hall A and Online
Abstract: UP11.00126 : Studying reconnection heating in the solar corona via gyrokinetic simulations*
Presenter:
Shu-Wei Tsao
(University of Texas at Austin)
Authors:
Shu-Wei Tsao
(University of Texas at Austin)
M.J. Pueschel
(Dutch Institute for Fundamental Energy Research)
Anna Tenerani
(University of Texas at Austin)
David R Hatch
(University of Texas at Austin)
To study how a more realistic, three-dimensional coronal loop geometry impacts reconnection rates and heating, a 3D half-torus geometry with field-line curvature and twist is set up in GENE. The magnetic potential at the footpoints of the coronal loop is set to zero. At realistic corona parameters, the growth rates have similar properties compared to the 2D case. We show preliminary nonlinear results of 3D reconnection turbulence and compare the heating rate with the 2D runs. Furthermore, we assess how three-dimensional flux ropes differ in their behavior -- particularly with respect to nanoflare merger processes -- compared with the 2D plasmoid dynamics reported in earlier work.
*This research was funded by the Office of Fusion Energy Sciences of the U.S. Department of Energy under Grant DE-FG02-04ER54742 and by the NSF through grant 2108320.
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