Coronal Hole - MHD Numerical Simulation

Astronomical Institute of the Romanian Academy Str. Cuţitul de Argint 5, RO-040557 Bucharest, Romania E-mail: crisd@aira.astro.ro Abstract. Starting with a dipole magnetic configuration, 2D-MHD numerical experiments were performed on different solar radii. Our numerical experiments treat locally the formation of the coronal hole. The evolution of the magnetic field and plasma parameters are analyzed for 1 . 0 ≤ β . The numerical values obtained by these simulations are in good agreement with those given by the observational works.