Magnetic-field re-connexion in a highly conducting incompressible fluid

摘要: A theoretical model is proposed for the process of re-connexion frozen-in magnetic-field lines at an X-type null point in field. The involves a diffusion region, immediately adjacent to and outer wave- dominated region. For latter exact solution magneto-hydrodynamic equations obtained; former approximate relationship derived between field-re-connexion rate, measured by Alfven number incident flow, magnetic Reynolds number, based on width maximum rate determined entirely conditions near may under suitable become large. condition conversion energy derived.