Sub-fluid models in dissipative magneto-hydrodynamics

M. Materassi (1) , G. Consolini (2) , Emanuele Tassi (3, 4)

1 Istituto dei Sistemi Complessi del CNR
2 IFSI - Istituto di Fisica dello Spazio Interplanetario
3 CPT - Centre de Physique Théorique - UMR 7332
4 CPT - Ex E8 Dynamique non linéaire

We address the problem of a description of plasma dynamics by means of magnetohydrodynamic models coupling the macroscopic, large scale fluid behavior, with the microscopic degrees of freedom. Three relevant subjects in this direction are described: the "algebrization" of dissipation in magnetohydrodynamics via the metriplectic formalism, a stochastic field theory for magnetohydrodynamics and a fractal model for fast magnetic reconnection.

Domaines: Physique des plasmas [physics.plasm-ph]

M. Materassi, G. Consolini, Emanuele Tassi. Sub-fluid models in dissipative magneto-hydrodynamics. Topics in Magnetohydrodynamics, InTech, pp.35, 2012. ⟨hal-00681688⟩