Open AccessOn the Construction of Phenomenological Coronal Mass Ejection Models
Author(s) -
Peregoudov D. V.
Publication year - 2021
Publication title -
space weather
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.254
H-Index - 56
ISSN - 1542-7390
DOI - 10.1029/2020sw002659
Subject(s) - conservation law , physics , coronal mass ejection , simple (philosophy) , faraday cage , magnetic field , phenomenological model , conservation of mass , magnetohydrodynamics , ampere , plasma , solar wind , classical mechanics , theoretical physics , mechanics , current (fluid) , nuclear physics , quantum mechanics , philosophy , epistemology , thermodynamics
We consider recently developed 3DCORE coronal mass ejection (CME) model. We find that the magnetic field of 3DCORE violates both Maxwellian equations: the one for absence of magnetic monopoles and the other one for Faraday induction (“frozen‐in” condition). We recall basic heliospheric magnetohydrodynamical equations and show that they lead to a number of conservation laws. These conservation laws should be taken into account when developing a phenomenological CME model. We show that conservation laws take extremely simple form when written in Lagrange coordinates frozen into plasma. Thus, these are easy to conform and practically, there are no reasons not to conform them. We propose a modification of 3DCORE magnetic field that satisfies Maxwellian equations.