Abstract
An attempt to describe hydromagnetic turbulence in disks by a second-order closure modeling is presented. The third order correlation tensor describing the interaction between the kinetic Reynolds-stress and the magnetic Reynolds-stress (Maxwell-stress) is approximated by using the two-scale DIA approximation. As other closure approximations, for simplicity, the concept of mixing length and eddy viscosity is adopted. A part of magnetic field is assumed to escape from the disk. Next, in order to demonstrate how our modeling should be extended, we retrograde to hydrodynamic turbulence, but solve a more refined set of equations, i.e., the so-called K — ɛ equation for compressible turbulence and show how the structure of turbulence changes with height
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© 1994 Springer Science+Business Media Dordrecht
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Kato, S. (1994). A Magnetic Turbulence Model in Disks. In: Duschl, W.J., Frank, J., Meyer, F., Meyer-Hofmeister, E., Tscharnuter, W.M. (eds) Theory of Accretion Disks — 2. NATO ASI Series, vol 417. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-0858-4_39
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DOI: https://doi.org/10.1007/978-94-011-0858-4_39
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