English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Twisted magnetic flux ropes are ubiquitous in space and laboratory plasmas,and the merging of such flux ropes through magnetic reconnection is animportant mechanism for restructuring magnetic fields and releasing freemagnetic energy. The merging-compression scenario is one possible start upscheme for spherical tokamaks, which has been used on the Mega Amp SphericalTokamak MAST. Two current-carrying plasma rings, or flux ropes, approach eachother through the mutual attraction of their like currents, and merge, throughmagnetic reconnection, into a single plasma torus, with substantial plasmaheating. 2D resistive MHD and Hall MHD simulations of this process arereported, and new results for the temperature distribution of ions andelectrons are presented. A model of the based on relaxation theory is alsodescribed, which is now extended to tight aspect ratio geometry. This modelallows prediction of the final merged state and the heating. The implicationsof the relaxation model for heating of the solar corona are also discussed, anda model of the merger of two or more twisted coronal flux ropes is presented,allowing for different senses of twist.

Two-fluid and magnetohydrodynamic modelling of magnetic reconnection in the MAST spherical tokamak and the solar corona