Flow properties along field lines in a 3-D tilted-dipole geometry

Details Flow properties along field lines in a 3-D tilted-dipole geometry Flow properties along field lines in a 3-D tilted-dipole geometry

Jun 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995sowi.conf...43p&link_type=abstract

San Juan Capistrano Research Inst., International Solar Wind 8 Conference, p. 43

Physics

Magnetohydrodynamics, Solar Wind, Flow Characteristics, Lines Of Force, Three Dimensional Models, Magnetic Fields, Magnetic Flux, Ulysses Mission, Solar Rotation, Simulation

Scientific paper

A 3-D MHD simulation of a global, tilted-dipole solar wind flow pattern is analyzed to determine flow properties along individual magnetic field lines. In the model, flow conditions near the Sun are chosen to provide a reasonable match to the interplanetary configuration prevailing during the recent south polar passage by Ulysses, i.e., a streamer belt inclined approximately 30 deg to the solar equator and speeds ranging from 325-800 km/s. Field lines all across the stream pattern are traced from 1 to 10 AU by following the motion of marker particles embedded in the flow. It is found that those field lines threading the core of the interaction region are subject to significant latitudinal and relative longitudinal displacement over this range of heliocentric distance. Thus, observations taken at a fixed latitude in the inner solar system sample, over the course of a solar rotation, field lines which connect to a range of latitudes in the outer heliosphere. Maps of the field line displacements are presented to help visualize these connections. In addition, it is found that depending upon the location relative to the CIR structure, the radial evolution of fluid elements frozen to different field lines can deviate considerably from that of the canonical solar wind. That is, for selected subsets of field lines, large speed changes (not just at shocks) can be experienced; the density variation can be far from 1/r2, and the magnetic field intensity need not decay monotonically with distance.

Affiliated with

Also associated with

No associations

Rating

Flow properties along field lines in a 3-D tilted-dipole geometry 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 Flow properties along field lines in a 3-D tilted-dipole geometry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flow properties along field lines in a 3-D tilted-dipole geometry will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-759845