Hall MHD turbulence with electron inertia

MARTIN, LUIS; ANDRÉS, NAHUEL; DMITRUK, PABLO; GOMEZ, DANIEL

San Francisco

Conferencia; Fall meeting of the American Geophysical Union; 2013

American Geophysical Union

 The magnetohydrodynamic (one-fluid) model is often regarded as a reasonable description of the dynamics of a plasma. One-fluid models areuseful in the context of large scale dynamics, but when a more detaileddescription  is needed (for instance, when the physical context favors thedevelopment of small scales)  it is most appropriate to consider two-fluidmodels.  Within the framework of two-fluid MHD for a fully ionized hydrogenplasma, we study the effect of the Hall term and electron inertia in MHDturbulence, observing whether these effects change the energy cascade, thecharacteristic scales of the flow  and the dynamics of global magnitudes,with particular interest in the dissipation processes.