The Effects of Rotation Rate on Deep Convection in Giant Planets with   Small Solid Cores
  We study how the pattern of thermal convection and differential rotation in the interior of a giant gaseous planet is affected by the presence of a small solid core as a function of the planetary rotation rate. We show, using 2D anelastic, hydrodynamic simulations, that the presence of a small solid core results in significantly different flow structure relative to that of a fully convective interior only if there is little or no planetary rotation. 
Martha Evonuk and Gary A. Glatzmaier