Spherical convective dynamos in the rapidly rotating asymptotic regime

DOI10.1017/jfm.2016.789zbMath1383.76538arXiv1611.04776OpenAlexW3098974615MaRDI QIDQ5364499

Thomas Gastine, Julien Aubert, Alexandre Fournier

Publication date: 28 September 2017

Published in: Journal of Fluid Mechanics (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/1611.04776

zbMATH Keywords

magnetohydrodynamicsdynamo theorygeodynamo

Mathematics Subject Classification ID

Magnetohydrodynamics and electrohydrodynamics (76W05) Free convection (76R10) Radiative transfer in astronomy and astrophysics (85A25)

Related Items (16)

Magnetoconvection in a rotating spherical shell in the presence of a uniform axial magnetic field ⋮ Asymptotic behaviour of rotating convection-driven dynamos in the plane layer geometry ⋮ Advances in geodynamo modelling ⋮ Analytic scaling laws in planetary dynamo models ⋮ Simple stochastic model for geomagnetic excursions and reversals reproduces the temporal asymmetry of the axial dipole moment ⋮ Efficiency gains of a multi-scale integration method applied to a scale-separated model for rapidly rotating dynamos ⋮ Solenoidal force balances in numerical dynamos ⋮ Dynamo saturation down to vanishing viscosity: strong-field and inertial scaling regimes ⋮ Determination of the instantaneous geostrophic flow within the three-dimensional magnetostrophic regime ⋮ Force balance in rapidly rotating Rayleigh–Bénard convection ⋮ The cross-over to magnetostrophic convection in planetary dynamo systems ⋮ Evolution of forced magnetohydrodynamic waves in a stratified fluid ⋮ The turbulent dynamo ⋮ Heat transfer and flow regimes in quasi-static magnetoconvection with a vertical magnetic field ⋮ Force balance in convectively driven dynamos with no inertia ⋮ Oscillatory thermal–inertial flows in liquid metal rotating convection

Uses Software

• SHTns

Cites Work

• A multiscale dynamo model driven by quasi-geostrophic convection
• Turbulent Rayleigh–Bénard convection in spherical shells
• A detailed analysis of a dynamo mechanism in a rapidly rotating spherical shell
• Approaching a realistic force balance in geodynamo simulations
• A convection-driven dynamo I. The weak field case
• The macrodynamics of α-effect dynamos in rotating fluids
• Nonlinear dynamics of boussinesq convection in a deep rotating spherical shell-i
• Spectral modeling of rotating turbulent flows
• The magneto-hydrodynamics of a rotating fluid and the earth’s dynamo problem
• The quasi-geostrophic model for rapidly rotating spherical convection outside the tangent cylinder
• Thermal instabilities in rapidly rotating systems
• Steady zonal flows in spherical shell dynamos
• Statistical and physical balances in low Rossby number Rayleigh–Bénard convection
• On magnetostrophic mean-field solutions of the geodynamo equations

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