Physical Sciences and Mathematics Commons^™

Coupling Of Coronal And Heliospheric Magnetohydrodynamic Models: Solution Comparisons And Verification, V. G. Merkin, R. Lionello, J. G. Lyon, J. Linker, T. Török, C. Downs

Dartmouth Scholarship

Two well-established magnetohydrodynamic (MHD) codes are coupled to model the solar corona and the inner heliosphere. The corona is simulated using the MHD algorithm outside a sphere (MAS) model. The Lyon–Fedder–Mobarry (LFM) model is used in the heliosphere. The interface between the models is placed in a spherical shell above the critical point and allows both models to work in either a rotating or an inertial frame. Numerical tests are presented examining the coupled model solutions from 20 to 50 solar radii. The heliospheric simulations are run with both LFM and the MAS extension into the heliosphere, and use the …