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astro-ph2004★ 9 cited
Local models of stellar convection III: The Strouhal number
P. J. Käpylä, M. J. Korpi, M. Ossendrijver +1
Aims: The Strouhal number (St), which is a nondimensional measure of the correlation time, is determined from numerical models of convection. The Strouhal number arises in the mean…
astro-ph2004
Local models of stellar convection II: Rotation dependence of the mixing length relations
P. J. Käpylä, M. J. Korpi, M. Stix +1
We study the mixing length concept in comparison to three-dimensional numerical calculations of convection with rotation. In a limited range, the velocity and temperature fluctuati…
astro-ph2001
Numerical study of the magnetorotational instability in weakly magnetised accretion disks: Resolution dependence of the Shakura-Sunyaev alpha
P. J. Kapyla, M. J. Korpi
In this letter, we present numerical calculations made to investigate the possible resolution dependence of the Shakura & Sunyaev (1973) viscosity parameter alpha from local magnet…