Alfvén-dynamo balance and magnetic excess in magnetohydrodynamic turbulence
Alfvén-dynamo balance and magnetic excess in magnetohydrodynamic turbulence
3D Magnetohydrodynamic (MHD) turbulent flows with initially magnetic and kinetic energies at equipartition spontaneously develop a magnetic excess (or residual energy), as well in numerical simulations and in the solar wind. Closure equations obtained in 1983 describe the residual spectrum as being produced by a dynamo source proportional to the …