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In this presentation,we describe a self-consistent,three-dimensional,global compressible,and resistive magnetohydrodynamic (MHD) model together with time-dependent boundary conditions based on the projected method of characteristics at the source surface (photosphere) to accommodate the observations.The additional physics included in this model are differential rotation,meridional flow,effective diffusion,and cyclonic turbulence effects in which the complex magnetic field structure can be generated through the nonlinear interactions between the plasmas flows and magnetic field.