A fluid model with finite Larmor radius effects for mirror mode dynamics

Details A fluid model with finite Larmor radius effects for mirror mode dynamics A fluid model with finite Larmor radius effects for mirror mode dynamics

Apr 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006jgra..11104203p&link_type=abstract

Journal of Geophysical Research, Volume 111, Issue A4, CiteID A04203

Physics

Plasma Physics

14

Magnetospheric Physics: Numerical Modeling, Magnetospheric Physics: Magnetosheath, Space Plasma Physics: Kinetic Waves And Instabilities, Space Plasma Physics: Mhd Waves And Instabilities (2149, 2752, 6050)

Scientific paper

A fluid model retaining hydrodynamic nonlinearities together with a linear approximation of the Landau damping and of the finite Larmor radius effects is constructed to describe the dynamics of quasi-transverse low-frequency waves in a homogeneous magnetized plasma. It accurately reproduces the kinetic theory predictions for the mirror instability, including its quenching at small transverse scales. The dispersion relation of kinetic Alfvén waves is also recovered. This model should provide an efficient tool for numerical simulations of nonlinear mirror mode dynamics, at least near threshold.

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