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Catherine A. Hier Majumder David A. Yuen Erik O. Sevre John M. Boggs Stephen Y. Bergeron 《Visual Geosciences》2002,7(1):1-53
Finite Prandtl number thermal convection is important to the dynamics of planetary bodies in the solar system. For example,
the complex geology on the surface of the Jovian moon Europa is caused by a convecting, brine-rich global ocean that deforms
the overlying icy “lithosphere”. We have conducted a systematic study on the variations of the convection style, as Prandtl
numbers are varied from 7 to 100 at Rayleigh numbers 106 and 108. Numerical simulations show that changes in the Prandtl number
could exert significant effects on the shear flow, the number of convection cells, the degree of layering in the convection,
and the number and size of the plumes in the convecting fluid. We found that for a given Rayleigh number, the convection style
can change from single cell to layered convection, for increasing Prandtl number from 7 to 100. These results are important
for determining the surface deformation on the Jovian moon Europa. They also have important implications for surface heat
flow on Europa, and for the interior heat transfer of the early Earth during its magma ocean phase. Electronic Supplementary
Material is available if you access this article at . On that page (frame on the left side), a link takes you directly to the supplementary material.
Electronic Supplementary Material is available if you access this article at . On that page (frame on the left side), a link takes you directly to the supplementary material. 相似文献
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