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arXiv · 1310.0175

Bridging planets and stars using scaling laws in anelastic spherical shell dynamos

Rakesh K. Yadav·Thomas Gastine·Ulrich R. Christensen·Lucia D. V. Duarte
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Abstract

Dynamos operating in the interiors of rapidly rotating planets and low-mass stars might belong to a similar category where rotation plays a vital role. We quantify this similarity using scaling laws. We analyse direct numerical simulations of Boussinesq and anelastic spherical shell dynamos. These dynamos represent simplified models which span from Earth-like planets to rapidly rotating low-mass stars. We find that magnetic field and velocity in these dynamos are related to the available buoyancy power via a simple power law which holds over wide variety of control parameters.

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Rakesh K. Yadav, Thomas Gastine, Ulrich R. Christensen, Lucia D. V. Duarte. 2013-10-01. Bridging planets and stars using scaling laws in anelastic spherical shell dynamos. https://doi.org/10.1017/s1743921314002002

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