MHD turbulence in shear flows and Keplerian disks – specific anisotropy of nonlinear processes, active modes, dynamical balances and sustenance

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• George Mamatsashvili (Copenhagen)
• Monday 22 October 2018, 14:00-15:00
• MR14, Centre for Mathematical Sciences, Wilberforce Road, Cambridge.

If you have a question about this talk, please contact Dr William Béthune.

We investigate MHD turbulence in spectrally stable plane shear flows and Keplerian disk flows, threaded by a non-zero azimuthal/vertical net magnetic flux. In order to gain a eeper insight into the underlying dynamical balances and sustaining mechanism, we performed a set of numerical imulations in the shearing box model and based on the imulation data, analyzed in detail the turbulence dynamics in Fourier space. We discuss the application/extension of his approach and results to the MRI -turbulence in Keplerian flows with zero net magnetic flux and associated dynamo action.

This talk is part of the DAMTP Astrophysics Seminars series.

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• MR14, Centre for Mathematical Sciences, Wilberforce Road, Cambridge
• bld31

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