GENERATION OF LARGE-SCALE FIELDS IN TWO-DIMENSIONAL CONVECTIVE ELECTRICITY-CONDUCTING MEDIUM BY FINE-SCALE TURBULENCE
Kopp Mikhail Iosifovich
B. N. Karazin Kharkiv National University, Ukraine
Abstract. The article examines the stability of two-dimensional large-scale flow in the turbulent convective electricity-conducting medium. In quasi-linear approximation the paper shows that the interaction of fine-scale turbulence (of Kolmogorov type) with the basic (large-scale) flow results in negative viscosity, magnetic viscosity and thermal conductivity. The author identified generation criteria for large-scale turbulent field, magnetic field and temperature depending on typical turbulence levels and medium parameters.
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