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Numerical Study of the Magnetorotational Instability in Princeton MRI Experiment

By Wei Liu

Abstract

In preparation for an experimental study of magnetorotational instability (MRI) in liquid metal, we present non-ideal axisymmetric magnetohydrodynamic simulations of the nonlinear evolution of MRI in the experimental geometry. The simulations adopt fully insulating boundary conditions. No-slip conditions are imposed at all boundaries. A clear linear phase is observed with reduced linear growth rate. MRI results in an inflowing “jet ” near the midplane and enhances the angular momentum transport at saturation. Subject headings: accretion, accretion disks — instabilities — methods: numerical — MHD 1

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