The natural convection of a fluid in a cavity with partially thermally active sidewalls of height H/4 with side length of the cavity that varies from 0.02 to 0.05 m and the cavity of side length of 0.05 m with and without a horizontal baffle is investigated experimentally and numerically for the following Rayleigh numbers: 10^3–10^5. The results clearly demonstrate that the baffle has a significant effect on heat transfer and flow characteristics of the fluid. The average Nusselt numbers are smaller than the corresponding values in the cavity without the baffle.
Natural convection in a cavity with partially active side walls with and without a horizontal baffle
NARDINI, GIORGIA;PARONCINI, MASSIMO;VITALI, RAFFAELLA
2015-01-01
Abstract
The natural convection of a fluid in a cavity with partially thermally active sidewalls of height H/4 with side length of the cavity that varies from 0.02 to 0.05 m and the cavity of side length of 0.05 m with and without a horizontal baffle is investigated experimentally and numerically for the following Rayleigh numbers: 10^3–10^5. The results clearly demonstrate that the baffle has a significant effect on heat transfer and flow characteristics of the fluid. The average Nusselt numbers are smaller than the corresponding values in the cavity without the baffle.File in questo prodotto:
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