Mathematics – Logic
Scientific paper
Jun 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995sowi.confq..75c&link_type=abstract
Saint Petersburg State Univ., International Solar Wind 8 Conference, p. 75
Mathematics
Logic
Magnetohydrodynamics, Phenomenology, Solar Wind, Plasma Conductivity, Solar Corona, Interplanetary Magnetic Fields, Magnetic Field Configurations
Scientific paper
One of the most important parameters in MHD description of the solar wind is the electric conductivity of plasma. There exist now two quite different approaches to the evaluation of this parameter. In the first one a value of conductivity taken from the most elaborated current theory of plasma should be used in calculations. The second one deals with the empirical, phenomenological value of conductivity. E.g.: configuration of interplanetary magnetic field, stretched by the expanding corona, depends on the magnitude of electrical conductivity of plasma in the solar wind. Knowing the main empirical features of the field configuration, one may estimate the apparent phenomenological value of resistance. The estimations show that the electrical conductivity should be approximately 1013 times smaller than that calculated by Spitzer. It must be noted that the empirical value should be treated with caution. Due to the method of its obtaining it may be used only for 'large-scale' description of slow processes like coronal expansion. It cannot be valid for 'quick' processes, changing the state of plasma, like collisions with obstacles, e.g., planets and vehicles. The second approach is well known in large-scale planetary hydrodynamics, stemming from the ideas of phenomenological thermodynamics. It could formulate real problems which should be solved by modern plasma physics, oriented to be adequate for complicated processes in space.
No associations
LandOfFree
Electric conductivity of plasma in solar wind 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 Electric conductivity of plasma in solar wind, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electric conductivity of plasma in solar wind will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-760591