3-DIMENSIONAL LINEAR-STABILITY OF NATURAL CONVECTIVE FLOW BETWEEN CONCENTRIC HORIZONTAL CYLINDERS

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Linear stability of natural convective flow in an annulus between two concentric horizontal cylinders is studied numerically. In the medium-sized annulus with relative inverse gap ratio (ratio of inner diameter to gap width) between 2.1 and 10.0, the basic two-dimensional flow is found to be unstable with respect to three-dimensional disturbances. Critical Rayleigh numbers above which the two-dimensional basic flow is unstable show good agreement with experimental results. The disturbance velocity distribution obtained by the stability analysis suggests that the instability is mainly caused by buoyancy effects.
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Issue Date
1993-11
Language
English
Article Type
Article
Keywords

CYLINDRICAL ANNULUS

Citation

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, v.36, no.17, pp.4173 - 4180

ISSN
0017-9310
URI
http://hdl.handle.net/10203/58186
Appears in Collection
ME-Journal Papers(저널논문)
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