Double-diffusive convection in a rotating cylinder with heating from below

Experimental investigations are made to study the convective phenomena of an initially stratified salt-water solution due to bottom heating in a uniformly rotating cylindrical cavity. Three types of global flow patterns initially appear depending on the effective Rayleigh number ( Ra η ) and Taylor...

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Bibliographic Details
Published in:International journal of heat and mass transfer 1997, Vol.40 (14), p.3387-3394
Main Authors: Lee, Jinho, Kang, Shin Hyung, Hyun, Myung Taek
Format: Article
Language:English
Subjects:
Convection and heat transfer
Exact sciences and technology
Fluid dynamics
Fundamental areas of phenomenology (including applications)
Physics
Turbulent flows, convection, and heat transfer
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Summary:Experimental investigations are made to study the convective phenomena of an initially stratified salt-water solution due to bottom heating in a uniformly rotating cylindrical cavity. Three types of global flow patterns initially appear depending on the effective Rayleigh number ( Ra η ) and Taylor number ( Ta): stagnant flow regime, single mixed layer flow regime and multiple mixed layer flow regime. The number of layers at its initial stage and the growth height of the mixed layer decreases as Ta increases for the same Ra η . It is ascertained in the rotating case that the fluctuation of interface between layers is weakened, the growth rate o f mixed layer is retarded and the shape of interface is more regular compared to the stationary case.
ISSN:0017-9310
1879-2189
DOI:10.1016/S0017-9310(96)00375-4