Convection in the Rayleigh-Bénard flow with all fluid properties variable View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2011-10

AUTHORS

Athanasios Sassos, Asterios Pantokratoras

ABSTRACT

In the present paper, the effect of variable fluid properties (density, viscosity, thermal conductivity and specific heat) on the convection in the classical Rayleigh-Bénard problem is investigated. The investigation concerns water, air, and engine oil by taking into account the variation of fluid properties with temperature. The results are obtained by numerically solving the governing equations, using the SIMPLE algorithm and covering large temperature differences. It is found that the critical Rayleigh number increases as the temperature difference increases considering all fluid properties variable. However, when the fluid properties are kept constant, calculated at the mean temperature, and only density is considered variable, the critical Rayleigh number either decreases or remains constant. More... »

PAGES

454

References to SciGraph publications

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s11630-011-0495-0

DOI

http://dx.doi.org/10.1007/s11630-011-0495-0

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1051462305


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