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Effect of Spacecraft Rotation on Fluid Convection Under MicrogravityThe influence of the rotational effects on two-dimensional fluid convection in a rectangular enclosure with rigid walls during the orbital flight is considered. It is shown that the Coriolis force influence both on steady and oscillatory convection becomes significant at Ekman numbers which are quite attainable in the space orbital conditions. In the case of harmonic oscillations of the gravity force appearance of the resonance phenomena is demonstrated. Dependence of the height and shape of the resonance peak on aspect ratio of a rectangular domain and orientation of vectors of the gravity force and the angular rotation velocity is studied. Special attention is given to non-linear effects caused by convective terms of Navier-Stokes equations. The convection produced by variations of the angular rotation velocity of a spacecraft is also discussed. It is shown that in some cases the latter convection can be comparable with another kinds of convection.
Document ID
19970000482
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Yuferev, Valentin S. (Ioffe (A. F.) Physical-Technical Inst. Saint Petersburg, Russia)
Kolesnikova, Elvira N. (Ioffe (A. F.) Physical-Technical Inst. Saint Petersburg, Russia)
Polovko, Yuri A. (Ioffe (A. F.) Physical-Technical Inst. Saint Petersburg, Russia)
Zhmakin, Alexander I. (Ioffe (A. F.) Physical-Technical Inst. Saint Petersburg, Russia)
Date Acquired
August 17, 2013
Publication Date
September 1, 1996
Publication Information
Publication: Third Microgravity Fluid Physics Conference
Subject Category
Materials Processing
Accession Number
97N10449
Funding Number(s)
CONTRACT_GRANT: N-920-5208/95
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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