Number of the records: 1
Nonlinearity in a dynamo
- 1.
SYSNO ASEP 0355538 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Nonlinearity in a dynamo Author(s) Hejda, Pavel (GFU-E) ORCID, RID
Reshetnyak, M. (RU)Source Title Geophysical and Astrophysical Fluid Dynamics. - : Taylor & Francis - ISSN 0309-1929
Roč. 104, č. 5-6 (2010), s. 491-504Number of pages 14 s. Language eng - English Country GB - United Kingdom Keywords Boussinesq convection ; geostrophy ; quenching ; triads Subject RIV DE - Earth Magnetism, Geodesy, Geography R&D Projects IAA300120704 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z30120515 - GFU-E (2005-2011) UT WOS 000284227800004 DOI 10.1080/03091929.2010.496365 Annotation Using a rotating flat layer heated from below as an example, we consider effects which lead to stabilizing an exponentially growing magnetic field in magnetostrophic convection in transition from the kinematic dynamo to the full non-linear dynamo. We present estimates of the energy redistribution over the spectrum and helicity quenching by the magnetic field. We also study the alignment of the velocity and magnetic fields. These regimes are similar to those in planetary dynamo simulations. Workplace Geophysical Institute Contact Hana Krejzlíková, kniha@ig.cas.cz, Tel.: 267 103 028 Year of Publishing 2011
Number of the records: 1