Abstract
Cooling of fixed heat sources applying forced convection is one of the most significant issues in increasing heat transfer. In this study, the cooling method of cylindrical ribs was investigated under the influence of forced convection as well as electric field induction. Cylindrical barriers are mounted at the bottom of the channel with an optimal zigzag arrangement. Heat transfer methods are studied with a compound of EHD and turbulence generators in the ranges of Re = 500 to Re = 3500. In the active method, Corona wind is used to disturb mainstream patterns and direct them towards ribbons. In the passive method, by installing turbulence generators on the areas of interest between cylindrical barriers. Also, by crossing the forced mainstream through the channel, a pressure gradient emerged that raises the speed and torsion of the flow followed by an increased heat transfer rate. The results reveal that the secondary flow resulted from corona wind is more effective in lower Reynolds numbers. In the passive method, the rise of Reynolds number improved the effects of this method.
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