2016/12/31 by Emmanuel Dormy, Ludivine Oruba, Ludovic Petitdemange · 51 citations
Biochemistry, Genetics and Molecular Biology · Earth and Planetary Sciences · Mathematics · Physics and Astronomy · #Action (physics) #Classical mechanics #Dipole #Dynamo #Dynamo theory #Geomagnetism and Paleomagnetism Studies #Geophysics and Gravity Measurements #Limit (mathematics) #Magnetic field #Mathematical analysis #Mathematics #Physics #Political science #Quantum mechanics #Relevance (law) #Solar and Space Plasma Dynamics #State (computer science) #Statistical physics #Theoretical physics #physics.geo-ph
paper · pdf · doi:10.1088/1873-7005/aa769c
published in Fluid Dynamics Research 50(1), 011415 (IOP Publishing) · 21 pages, 12 figures Accepted Manuscript Fluid Dynamics Research (online 2 June 2017)
openalex publication_date 2017/06/02 · arxiv created 2017/12/21 · arxiv updated 2017/12/22 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
Abstract In addition to the weak-dipolar state and to the fluctuating-multipolar state, widely discussed in the literature, a third regime has been identified in (Dormy 2016 J. Fluid. Mech. 789 500–13). It corresponds to a strong-dipolar branch which appears to approach, in a numerically affordable regime, the magnetostrophic limit relevant to the dynamics of the Earth’s core. We discuss the transitions between these states and point to the relevance of this strong-dipolar state to Geodynamo modelling.