Hysteresis of dynamos in rotating spherical shell convection

  • Bifurcations of dynamos in rotating and buoyancy-driven spherical Rayleigh-Benard convection in an electrically conducting fluid are investigated numerically. Both nonmagnetic and magnetic solution branches comprised of rotating waves are traced by path-following techniques, and their bifurcations and interconnections for different Ekman numbers are determined. In particular, the question of whether the dynamo branches bifurcate super- or sub-critically and whether a direct link to the primary pure convective states exists is answered.

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Author details:Fred FeudelORCiD, Laurette S. Tuckerman, Michael ZaksORCiDGND, Rainer Hollerbach
Title of parent work (English):Physical review fluids / American Physical Society
Publisher:American Physical Society
Place of publishing:College Park
Publication type:Article
Date of first publication:2017/05/16
Publication year:2017
Release date:2022/05/09
Number of pages:11
Organizational units:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie
DDC classification:5 Naturwissenschaften und Mathematik / 52 Astronomie / 520 Astronomie und zugeordnete Wissenschaften
5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Peer review:Referiert
Publishing method:Open Access / Green Open-Access
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