کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
654702 | 885261 | 2008 | 7 صفحه PDF | دانلود رایگان |
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.
Journal: International Communications in Heat and Mass Transfer - Volume 35, Issue 6, July 2008, Pages 779–785