A three-dimensional model of corotating streams in the solar wind. III - Magnetohydrodynamic streams

Details A three-dimensional model of corotating streams in the solar wind. III - Magnetohydrodynamic streams A three-dimensional model of corotating streams in the solar wind. III - Magnetohydrodynamic streams

Jun 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982jgr....87.4374p&link_type=abstract

Journal of Geophysical Research, vol. 87, June 1, 1982, p. 4374-4394.

Statistics

Computation

95

Magnetohydrodynamic Flow, Plasma Diagnostics, Solar Magnetic Field, Solar Wind, Three Dimensional Flow, Three Dimensional Models, Angular Momentum, Computational Fluid Dynamics, Kinematics, Mathematical Models, Plasma Physics, Two Dimensional Models

Scientific paper

A numerical model is presented which shows the effects of the large scale solar magnetic field on the dynamic evolution of corotating solar wind streams which are in some aspects three-dimensional. The model is expressed in terms of nonlinear, polytropic, MHD equations, with dynamic structures considered to be in a frame corotating with the sun. Limiting conditions include a plasma composed of protons and electrons only, charge neutrality on any scale larger than Debye length, infinite electrical conductivity, and an isotropic pressure tensor. Characteristic disturbances propagate only in fast modes, while Alfven waves and slow modes have no corotating frame. Solutions are found for radial, meridional, and azimuthal momenta, the total mass involved, Maxwell's equation, and the total energy. It is concluded that no physical evidence exists for the presence of the three-dimensional structures, although two-dimensional models fail to explain some observed phenomena.

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