Onset of low Prandtl number thermal convection in thin spherical shells
نویسندگان
چکیده
منابع مشابه
On the onset of low-Prandtl-number convection in rotating spherical shells: non-slip boundary conditions
Accurate numerical computations of the onset of thermal convection in wide rotating spherical shells are presented. Low-Prandtl-number (σ ) fluids, and non-slip boundary conditions are considered. It is shown that at small Ekman numbers (E), and very low σ values, the well-known equatorially trapped patterns of convection are superseded by multicellular outer-equatorially-attached modes. As a r...
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A five-degree model, which reproduces faithfully the sequence of bifurcations and the type of solutions found through numerical simulations of the three-dimensional Boussinesq thermal convection equations in rotating spherical shells with fixed azimuthal symmetry, is derived. A low Prandtl number fluid of σ = 0.1 subject to radial gravity, filling a shell of radius ratio η = 0.35, differentiall...
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ژورنال
عنوان ژورنال: Physical Review Fluids
سال: 2018
ISSN: 2469-990X
DOI: 10.1103/physrevfluids.3.024801