Anomalous heat conduction along the field lines for turbulently heated plasmas
Abstract
A quasilinear model is presented to study the effect of turbulence and finite length on heat loss by conduction along the field lines in a plasma heated by crossfield instabilities. The turbulence contribution to energy confinement along the field lines is calculated selfconsistently from the quasilinear moment equation. The electron temperature is found to be highly dependent on the competition between heat loss to the ends and turbulent heat production due to the instabilities. The results, discussed for a wide range of plasma parameters, may explain the cooling of electrons on the time scale of interest (e.g., implosion time) in several thetapinch experiments.
 Publication:

Physics of Fluids
 Pub Date:
 June 1975
 DOI:
 10.1063/1.861194
 Bibcode:
 1975PhFl...18..699C
 Keywords:

 Conductive Heat Transfer;
 Energy Dissipation;
 Plasma Heating;
 Turbulent Heat Transfer;
 Electron Energy;
 Lines Of Force;
 Magnetic Field Configurations;
 Mathematical Models;
 Plasma Turbulence;
 Theta Pinch;
 Plasma Physics