Decay of Trefoil and Other Magnetic Knots

Candelaresi, S. , Del Sordo, F. and Brandenburg, A. (2010) Decay of Trefoil and Other Magnetic Knots. In: Advances in Plasma Astrophysics, Giardini Naxos, Italy, 06-10 Sep 2010, pp. 461-463. (doi:10.1017/S1743921311007496)

Full text not currently available from Enlighten.

Abstract

Two setups with interlocked magnetic flux tubes are used to study the evolution of magnetic energy and helicity on magnetohydrodynamical (MHD) systems like plasmas. In one setup the initial helicity is zero while in the other it is finite. To see if it is the actual linking or merely the helicity content that influences the dynamics of the system we also consider a setup with unlinked field lines as well as a field configuration in the shape of a trefoil knot. For helical systems the decay of magnetic energy is slowed down by the helicity which decays slowly. It turns out that it is the helicity content, rather than the actual linking, that is significant for the dynamics.

Item Type:Conference Proceedings
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Candelaresi, Dr Simon
Authors: Candelaresi, S., Del Sordo, F., and Brandenburg, A.
College/School:College of Science and Engineering > School of Mathematics and Statistics > Mathematics
ISSN:1743-9213

University Staff: Request a correction | Enlighten Editors: Update this record