Greifswald 2009 – wissenschaftliches Programm

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SYNS: Numerical Simulation of Hightemperature Plasmas

SYNS 2: Numerical Simulation II

SYNS 2.5: Vortrag

Donnerstag, 2. April 2009, 17:00–17:15, HS Biochemie (groß)

Transfer analysis of a local surface dynamo — •Jonathan Pietarila Graham, Robert Cameron, and Manfred Schüssler — Max-Planck-Institut für Sonnensystemforschung, 37191 Katlenburg-Lindau, Germany

We conduct spectral energy transfer analysis of “realistic” simulations of solar magneto-convection and local dynamo action. We determine how far the results of spectral non-locality for incompressible homogeneous MHD small-scale dynamo action carry over to solar conditions of stratification, compressibility, partial ionization and radiative energy transport. Comparison with the results for realistic simulations clarify the similarities and differences between the small-scale turbulent dynamo in idealized systems to the solar local dynamo thus providing a more significant connection between the results of the large body of literature for homogeneous isotropic turbulence to solar applications.