Verma, Mahendra K. (2001) Calculation of renormalized viscosity and resistivity in magnetohydrodynamic turbulence Physics of Plasmas, 8 (9). pp. 3945-3956. ISSN 1070-664X
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Official URL: http://doi.org/10.1063/1.1389298
Related URL: http://dx.doi.org/10.1063/1.1389298
Abstract
A self-consistent renormalization (RG) scheme has been applied to nonhelical magnetohydrodynamic turbulence with normalized cross helicity σc=0 and σc→1. Kolmogorov’s 53 power law is assumed in order to compute the renormalized parameters. It has been shown that the RG fixed point is stable for d⩾dc≈2.2. The renormalized viscosity ν* and resistivity η* have been calculated, and they are found to be positive for all parameter regimes. For σc=0 and large Alfvén ratio (ratio of kinetic and magnetic energies) rA, ν*=0.36, and η*=0.85. As rA is decreased, ν* increases and η* decreases, until rA≈0.25, where both ν* and η* are approximately zero. For large d, both ν* and η* vary as d−1/2. The renormalized parameters for the case σc→1 are also reported.
Item Type: | Article |
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Source: | Copyright of this article belongs to American Institute of Physics. |
ID Code: | 118993 |
Deposited On: | 05 Jun 2021 12:25 |
Last Modified: | 05 Jun 2021 12:25 |
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