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Heat Transfer Research
Fator do impacto: 0.404 FI de cinco anos: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN Imprimir: 1064-2285
ISSN On-line: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.v31.i6-8.190
pages 515-520

Heat Convection in a Fluid Rotating under Conditions of Weightlessness

Yu. A. Polovko
A. F. Ioffe Physicotechnical Institute, St. Petersburg, Russia
V. S. Yuferev
A. F. Ioffe Physical -Technical Institute of Russian Academy of Sciences, St. Petersburg, Russia

RESUMO

Heat convection in a nonuniformly rotating fluid, provided that the size of the container with the fluid is much smaller than the distance between the container and the center of rotation and the gravity force is absent, is considered. It is shown that a fluid flow is induced by the action of two forces: the buoyancy force and the inertia force associated with the angular acceleration of the container. Interaction of these forces leads to a substantial dependence of convection intensity on the angle between the temperature gradient and the radius-vector drawn from the center of rotation to the origin of the coordinate system connected with the container. The results of numerical simulation of three-dimensional convection in a cubic region are presented.


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