Problem of the Rotating Magnetoconvection in Variously Stratified Fluid Layer Revisited |
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| Authors: | ?imkanin Ján Brestenský Jozef ?ev?ík Sebastián |
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| Institution: | (1) Geophysical Institute, Acad. Sci. Czech Rep., Bo ní II/1401, 141 31 Prague 4, Czech Republic;(2) Department of Geophysics, Faculty of Mathematics, Physics and Informatics, Comenius University, Mlynská dolina F1, 842 48 Bratislava, Slovak Republic |
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| Abstract: | The linear magnetoconvection in the rotating uniformly as well as non-uniformly stratified horizontal layer with azimuthal magnetic field is investigated for the various mechanical and electrical boundary conditions and especially, for various values of Roberts number. The developed diffusive perturbations (modes) are strongly influenced not only by the mentioned properties of boundaries but also by complicated coupling of viscous, thermal and magnetic diffusive processes. The mean electromotive force produced by developed hydromagnetic instabilities is also investigated to determine the hydromagnetic processes which are appropriate for  -effect. The presented paper is an unification of hitherto published results of the authors and gives a short survey of many developments of corresponding model by Soward (1979). |
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| Keywords: | linear magnetoconvection diffusive hydromagnetic instabilities non-uniform stratification boundary conditions |
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