How reliable are MRI simulations? The role of the magnetic Prandtl number

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• Fromang, S (CEA/Saclay)
• Wednesday 30 September 2009, 09:30-10:30
• Seminar Room 1, Newton Institute.

If you have a question about this talk, please contact Mustapha Amrani.

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Thanks to high resolution local simulations, the last few years have seen significant progresses in our understanding of MHD turbulence driven by the magnetorotational instability. Small scale explicit dissipation coefficients (viscosity and resistivity), traditionnally excluded from such simulations in the past, have been shown to be extremely important to set the saturated amplitude of the turbulence. In this talk I will review these recent results and discuss their consequences for protoplanetary disks structure and planet formation theories.

This talk is part of the Isaac Newton Institute Seminar Series series.

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