Propagation of two-fluid interplanetary shock waves

Details Propagation of two-fluid interplanetary shock waves Propagation of two-fluid interplanetary shock waves

Oct 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979jgr....84.5897r&link_type=abstract

Journal of Geophysical Research, vol. 84, Oct. 1, 1979, p. 5897-5906. NOAA-supported research;

Mathematics

Logic

3

Collisionless Plasmas, Interplanetary Medium, Ion Acoustic Waves, Shock Wave Propagation, Solar Flares, Two Fluid Models, Adiabatic Flow, Astronomical Models, Electrical Resistivity, Electron Scattering, Mathematical Models, Solar Wind

Scientific paper

A two-fluid time-dependent analytical model of the perturbed solar wind is presented. The expansion of newly emitted material, caused, for instance, by the outburst of a solar flare, is simulated by a spherical piston. The electron collision time is phenomenologically decreased to account for a transit from a collisional (near the sun) to a collisionless regime (at 1 AU). This effectively inhibits thermal conductivity and enhances ion-electron heat exchange. For a given thermal conductivity in the limit of strong coupling, one-fluid flow in a thermally conducting medium is recovered. A pattern of flow which resembles one-fluid flow in an adiabatic medium may be obtained if heat is removed from the perturbed plasma into the propelling plasma. The perturbed flow consists of a thermal precursor which is followed by a shock across which electrons are isothermal while protons are compressed and heated. For most of the postshock domain the electron temperature is considerably higher than the proton temperature. This may initiate ion acoustic instability, and as a result, the plasma may have anomalous resistivity. Finally, we show that the postshock rise and fall of density cannot be used to distinguish piston-driven waves from blast waves.

Affiliated with

Also associated with

No associations

Rating

Propagation of two-fluid interplanetary shock waves does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Propagation of two-fluid interplanetary shock waves, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Propagation of two-fluid interplanetary shock waves will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1388243