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SYNS: Numerical Simulation of Hightemperature Plasmas

SYNS 2: Numerical Simulation II

SYNS 2.3: Vortrag

Donnerstag, 2. April 2009, 16:30–16:45, HS Biochemie (groß)

Energy balance of the corona in a 3D MHD numerical model — •Sven Bingert — Kiepenheuer-Institut für Sonnenphsik, Freiburg, Germany

The comparison of forward numerical models to observations is based on the computation of line emissions. To compare emission lines formed in the transition region it is necessary to reproduce the steep gradient. Therefore it is important to use a proper energy balance in the simulations including radiative loss and Spitzer heat conduction. We show results of a 3D MHD numerical model of the solar corona. The heating is ohmic dissipation of a dynamic magnetic field driven by photospheric motions. The direct access to the magnetic field vector allows us to evaluate the spatial and temporal distribution of heating events. The energy equation including the anisotropic heat conduction and its limits in this simulation will be discussed.