Article ID Journal Published Year Pages File Type
654702 International Communications in Heat and Mass Transfer 2008 7 Pages PDF
Abstract

Conjugate heat transfer by mixed convection and conduction in lid-driven enclosures with thick bottom wall has been studied by a numerical method. The enclosure is heated from the bottom wall isothermally. Temperature of the top moving wall, which has constant flow speed, is lower than that of the outside of bottom wall. Vertical walls of the enclosure are adiabatic. Governing parameters are solved for a wide range of Richardson numbers (0.1 ≤ Ri ≤ 10), ratio of height of bottom wall to enclosure height (0.1 ≤ h/H ≤ 0.5) and thermal conductivity ratio (0.01 ≤ λf/λs ≤ 10). Obtained results showed that heat transfer decreases with increasing of λf/λs ratio, Richardson number and thickness ratio of the wall. Flow strength is affected for only higher values of λf/λs ratio.

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