Article ID Journal Published Year Pages File Type
662224 International Journal of Heat and Mass Transfer 2007 7 Pages PDF
Abstract

The heat transfer associated with an infinite planar array of distributed heat sources on the bottom wall of a horizontal air filled plenum is modelled numerically, and simulations which account for natural convection and radiation are performed to investigate the effect of independent sinusoidal modulation of heat fluxes. Nusselt number, maximum velocity and Rayleigh number decrease with increasing oscillation amplitude, while the temperature difference between the cold upper wall and the average source temperature decreases. The decrease in temperature difference associated with heat flux modulation indicates an improvement in overall heat transfer.

Related Topics
Physical Sciences and Engineering Chemical Engineering Fluid Flow and Transfer Processes
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