Physics
Scientific paper
Oct 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976soph...50..133c&link_type=abstract
Solar Physics, vol. 50, Sept.-Oct. 1976, p. 133-151. Research supported by the Science Research Council.
Physics
39
High Temperature Plasmas, Mass Transfer, Solar Flares, Solar X-Rays, Conductive Heat Transfer, Energy Dissipation, Energy Transfer, Filaments, Neutral Sheets, Plasma Radiation, Radiative Heat Transfer, Temperature Distribution
Scientific paper
Energy transport in a hot flare plasma is examined with particular reference to the influence of fluid motion. On the basis of dimensional considerations the dynamical time scale of the flare plasma is shown to be comparable to the time scale for energy loss by conduction and radiation. It is argued that mass motion is likely to have a profound influence on the evolution of the flare. The detailed response of a flare filament to a localized injection of energy is then analyzed. Radiative, conductive and all dynamical terms are included in the energy equation. Apart from greatly enhancing the rate of propagation of the thermal disturbance through space, mass motion is found to be significant in transferring energy through the moving fluid. Finally the predicted thermal structure is discussed and it is concluded that the presence of mass motions in the flare may be inferred from the form of the soft X-ray differential emission measure.
Craig Donald I. Jr.
McClymont Alexander N.
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