On the viscous interaction of solar wind streams

Details On the viscous interaction of solar wind streams On the viscous interaction of solar wind streams

Apr 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985azh....62..371k&link_type=abstract

(Astronomicheskii Zhurnal, vol. 62, Mar.-Apr. 1985, p. 371-376) Soviet Astronomy (ISSN 0038-5301), vol. 29, Mar.-Apr. 1985, p. 2

Astronomy and Astrophysics

Astronomy

1

Astronomical Models, Kelvin-Helmholtz Instability, Plasma Jets, Solar Wind, Space Plasmas, Kinematics, Magnetohydrodynamics, Shock Waves, Wave Propagation

Scientific paper

Within the framework of a simple model the evolution of fronts between solar wind streams with different velocities, as they propagate from the sun to the earth's orbit, is considered. It is shown that the presence of stream velocity shears near the fronts leads to an excitation of the Kelvin-Helmholtz instability. Taking into account turbulent viscosity, brought about by the development of this instability makes it possible to explain the observed broadening of the fore-fronts of high-speed solar wind streams within the earth's orbit.

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