MULTICELLULAR NATURAL-CONVECTION OF A LOW PRANDTL NUMBER FLUID BETWEEN HORIZONTAL CONCENTRIC CYLINDERS

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Two-dimensional natural convection of a fluid of low Prandtl number (Pr = 0.02) in an annulus between two concentric horizontal cylinders is numerically investigated in a wide range of gap widths. For low Grashof numbers, a steady unicellular convection is obtained. Above a transition Grashof number that depends on the gap width, a steady bicellular flow occurs. With further increase of the Grashof number, steady or time-periodic multicellular convection occurs and finally, complex unsteady convective flow appears. A plot is presented that predicts the type of flow pattern for various combinations of gap widths and Grashof numbers.
Publisher
HEMISPHERE PUBL CORP
Issue Date
1994
Language
English
Article Type
Article
Keywords

ANNULUS

Citation

NUMERICAL HEAT TRANSFER PART A-APPLICATIONS, v.25, no.1, pp.103 - 115

ISSN
1040-7782
DOI
10.1080/10407789408955939
URI
http://hdl.handle.net/10203/60726
Appears in Collection
ME-Journal Papers(저널논문)
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