Sheyko Andrey, Finlay Christopher, Favre Jean, Jackson Andrew (2018), Scale separated low viscosity dynamos and dissipation within the Earth’s core, in
Scientific Reports, 8(1), 12566-12566.
Sheyko Andrey (2018), Scale separated low viscosity dynamos and dissipation within the Earth's core, in
Springer Nature, 8, 12566.
Matsui Hiroaki, Heien Eric, Aubert Julien, Aurnou Jonathan M., Avery Margaret, Brown Ben, Buffett Bruce A., Busse Friedrich, Christensen Ulrich R., Davies Christopher J., Featherstone Nicholas, Gastine Thomas, Glatzmaier Gary A., Gubbins David, Guermond Jean-Luc, Hayashi Yoshi-Yuki, Hollerbach Rainer, Hwang Lorraine J., Jackson Andrew, Jones Chris A., Jiang Weiyuan, Kellogg Louise H., Kuang Weijia, Landeau Maylis, et al. (2016), Performance benchmarks for a next generation numerical dynamo modelDYNAMO PERFORMANCE BENCHMARKS, in
Geochemistry, Geophysics, Geosystems, 17(5), 1586-1607.
Our interest is in the mechanisms responsible for magnetic field generationin planetary cores. Conventional wisdom holds that for the Earth, thermal convection is the process at work. Palaeomagnetism shows that reversals are a ubiquitous feature requiring explanation and we plan a thorough analysis of a reversing thermally-driven dynamo in the most extreme (and Earth-like) parameter regime yet explored. We also wish to examine the dynamo capabilities of a new asymptotic regime for the core, namely one in which inertia and viscosity are neglected at first order, which is another approach that can bring us towards a representative (and probably most-realistic) representation of the dynamics of the core. We plan to examine two aspects of this new regime of dynamos: firstly, how do quantities of interest (such as magnetic and kinetic energies) scale with the control parameters in the regime where the field is of stable polarity; secondly, in the more highly-forced regime where reversals occur, what are the characteristics of the reversals, how do they initiate and what sets their time scales? Ultimately our aim is a better understanding of magnetic field generation in planetary bodies.