Aspect ratio dependence in magnetorotational instability shearing box simulations

Abstract

Aims: We study the changes in the properties of turbulence driven by the magnetorotational instability in a shearing box, as the computational domain size in the radial direction is varied relative to the height Methods: We perform 3D simulations in the shearing box approximation, with a net magnetic flux, and we consider computational domains with different aspect ratios Results: We find that in boxes of aspect ratio unity the transport of angular momentum is strongly intermittent and dominated by channel solutions in agreement with previous work. In contrast, in boxes with larger aspect ratio, the channel solutions and the associated intermittent behavior disappear. Conclusions: There is strong evidence that, as the aspect ratio becomes larger, the characteristics of the solution become aspect ratio independent. We conclude that shearing box calculations with aspect ratio unity or near unity may introduce spurious effects.

5 pages, 6 figures, Astronomy and Astrophysics accepted

References in corpus (15)

• PLUTO: a Numerical Code for Computational Astrophysics
• Enhanced Angular Momentum Transport in Accretion Disks
• Angular Momentum Transport by MHD Turbulence in Accretion Disks: Gas Pressure Dependence of the Saturation Level of the Magnetorotational Instability
• Impact of dimensionless numbers on the efficiency of MRI-induced turbulent transport
• MHD simulations of the magnetorotational instability in a shearing box with zero net flux. I. The issue of convergence
• The Effect of the Hall Term on the Nonlinear Evolution of the Magnetorotational Instability: I. Local Axisymmetric Simulations
• A Magnetohydrodynamic Nonradiative Accretion Flow in Three Dimensions
• Global MHD Simulations of Cylindrical Keplerian Disks
• Saturation and Thermalization of the Magnetorotational Instability: Recurrent Channel Flows and Reconnections
• Local Three-Dimensional Simulations of Magneto-Rotational Instability in Radiation-Dominated Accretion Disks
• A Simple and Accurate Riemann Solver for Isothermal MHD
• A weakly nonlinear analysis of the magnetorotational instability in a model channel flow
• Simulations of Magnetorotational Instability in a Magnetized Couette Flow
• Ballooning Modes in Thin Accretion Disks: Limits for their Excitation
• On the nonlinear saturation of the magnetorotational instability near threshold in a thin-gap Taylor-Couette setup

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