Anomalous Viscosity, Resistivity, and Thermal Diffusivity of the Solar Wind Plasma

Details Anomalous Viscosity, Resistivity, and Thermal Diffusivity of the Solar Wind Plasma Anomalous Viscosity, Resistivity, and Thermal Diffusivity of the Solar Wind Plasma

1995-09-05

arxiv.org/abs/chao-dyn/9509002v1

Nonlinear Sciences

Chaotic Dynamics

Latex, 16 pages, no figures, submitted to Journal of Geophysical Research

Scientific paper

In this paper we have estimated typical anomalous viscosity, resistivity, and thermal difffusivity of the solar wind plasma. Since the solar wind is collsionless plasma, we have assumed that the dissipation in the solar wind occurs at proton gyro radius through wave-particle interactions. Using this dissipation length-scale and the dissipation rates calculated using MHD turbulence phenomenology [{\it Verma et al.}, 1995a], we estimate the viscosity and proton thermal diffusivity. The resistivity and electron's thermal diffusivity have also been estimated. We find that all our transport quantities are several orders of magnitude higher than those calculated earlier using classical transport theories of {\it Braginskii}. In this paper we have also estimated the eddy turbulent viscosity.

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