Valery V. Pipin

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This paper suggests a numerical model of the Gleiss-berg cycle based on a spherical shell dynamo. The formulation of the problem includes a description both of the rotation law and of the hydromagnetic dynamo. The suggested model allows the Gleissberg cycle to be interpreted as resulting from the magnetic feedback on the angular momentum fluxes which(More)
Context. The standard dynamo model for the solar and stellar magnetic fields is based on the αΩ mechanism, namely, an interplay between differential rotation (the Ω effect) and a mean electromotive force generated by helical turbulent convection flows (the α effect). There are, however, a number of problems with the α effect and αΩ dynamo models. Two of(More)
The rotational influence on the eddy-diffusivity tensor Dij for anisotropic turbulence fields is considered in order to explain the lithium decay law during the spin-down process of solar-type stars. Rotation proves to be highly effective in the transfer of chemicals through the solar tachocline (beneath the convection zone) which is assumed to contain only(More)
Context. Solar cycles vary in their amplitude and shape. There are several empirical relations between various parameters linking cycle's shape and amplitude, in particular the Waldmeier relations. Aims. As solar cycle is believed to be a result of the solar dynamo action, these relations require explanation in the framework of this theory. Here we aim to(More)
Recently, Jouve et al [2] published the paper that presents the numerical benchmark for the solar dynamo models. Here, I would like to show a way how to get it with help of computer algebra system Maxima. This way was used in [4] to test some new ideas in the large-scale stellar dynamos. What you need are the latest version of Maxima-5.16.3 (preferable(More)
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