Open AccessOn the choice of boundary conditions when studying the turbulent diffusion of magnetic fields
Author(s) -
Silvers L. J.
Publication year - 2006
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1111/j.1365-2966.2006.10008.x
Subject(s) - physics , diffusion , turbulence , boundary (topology) , quenching (fluorescence) , statistical physics , thermal diffusivity , boundary value problem , magnetic field , turbulent diffusion , magnetic diffusivity , mechanics , classical mechanics , magnetohydrodynamics , thermodynamics , mathematical analysis , optics , quantum mechanics , mathematics , fluorescence
In this paper, we present a discussion and results pertaining to the role of the choice of the boundary conditions in models that seek to address the form of the quenching of the turbulent magnetic diffusivity. We show that, for several natural choices of boundary conditions frequently selected in numerical investigations, ‘weak’ magnetic fields have a profound effect on the rate of diffusion. We go on to discuss further results that suggest a way by which such a catastrophic quenching may be avoided.