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This article is cited in 2 scientific papers (total in 2 papers)
Spatial parity violation and the turbulent magnetic Prandtl number
E. Jurčišinováa, M. Jurčišina, R. Remeckyab, P. Zaloma a Institute of Experimental Physics, Slovak Academy of Sciences,
Košice, Slovakia
b Joint Institute for Nuclear Research, Dubna, Moscow Oblast,
Russia
Abstract:
Using the field theory renormalization-group technique in the two-loop approximation, we study the influence of helicity (spatial parity violation) on the turbulent magnetic Prandtl number in the model of kinematic magnetohydrodynamic turbulence, where the magnetic field behaves as a passive vector quantity advected by the helical turbulent environment given by the stochastic Navier–Stokes equation. We show that the presence of helicity decreases the value of the turbulent magnetic Prandtl number and that the two-loop helical contribution to the turbulent magnetic Prandtl number is up to $4.2\%$ of its nonhelical value. This result demonstrates the strong stability of the properties of diffusion processes of the magnetic field in turbulent environments with spatial parity violation compared with the corresponding systems without the helicity.
Keywords:
developed turbulence, passive advection, helicity, renormalization group.
Received: 19.12.2012 Revised: 20.02.2013
Citation:
E. Jurčišinová, M. Jurčišin, R. Remecky, P. Zalom, “Spatial parity violation and the turbulent magnetic Prandtl number”, TMF, 176:1 (2013), 150–159; Theoret. and Math. Phys., 176:1 (2013), 956–963
Linking options:
https://www.mathnet.ru/eng/tmf8485https://doi.org/10.4213/tmf8485 https://www.mathnet.ru/eng/tmf/v176/i1/p150
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Abstract page: | 281 | Full-text PDF : | 151 | References: | 41 | First page: | 11 |
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