A simplified numerical model of coronal energy dissipation based on reduced MHD E. Buchlin, V. Aletti, S. Galtier, M. Velli, G. Einaudi and J.-C. Vial A&A, 406 3 (2003) 1061-1070 Published online: 17 November 2003 DOI: 10.1051/0004-6361:20030730