Mathematics – Logic
Scientific paper
May 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agusmsm51a..12t&link_type=abstract
American Geophysical Union, Spring Meeting 2007, abstract #SM51A-12
Mathematics
Logic
2723 Magnetic Reconnection (7526, 7835), 7526 Magnetic Reconnection (2723, 7835), 7833 Mathematical And Numerical Techniques (0500, 3200), 7835 Magnetic Reconnection (2723, 7526)
Scientific paper
We have recently added Hall MHD to the global magnetohydrodynamic code BATSRUS. Compared to ideal or resistive MHD, Hall MHD provides a more realistic modeling of the interaction of the solar wind with unmagnetized bodies and the reconnection process in magnetospheres. On the other hand accurate modeling of reconnection is rather expensive due to the required resolution and the stiffness of the Hall MHD equations. The non-gyrotropic resistivity model of Kuznetsova et al. is a phenomenological approximation based on the results of particle simulations. It provides an inexpensive but surprisingly accurate model for the reconnection process. We will systematically compare the two approaches within the BATSRUS code.
Gombosi Tamas I.
Kuznetsova Masha
Ma Yi
Tóth Géza
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