Neal Hurlburt, Marc DeRosa, Kyle Augustson, Juri Toomre
We examine the role of small-scale granulation in helping to drive
supergranulation and even larger scales of convection. The granulation is
modeled as localized cooling events introduced at the upper boundary of a 3-D
simulation of compressible convection in a rotating spherical shell segment.
With a sufficient number of stochastic cooling events compared to uniform
cooling, we find that supergranular scales are realized, along with a
differential rotation that becomes increasingly solar-like.
View original:
http://arxiv.org/abs/1201.4809
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