Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4993871 | International Journal of Heat and Mass Transfer | 2017 | 11 Pages |
Abstract
This study numerically investigates the two-dimensional natural convection in a square enclosure with different arrays of two inner cylinders at Rayleigh numbers of 103 â¤Â Ra â¤Â 106. A simulation was carried out based on the immersed boundary method to obtain an accurate solution. The results were compared with those of two inner circular cylinders with different vertical locations from a previous study. Detailed analysis results are presented for the distribution of the flow and thermal fields and the time- and surface-averaged Nusselt numbers. The flow and thermal fields eventually reach steady or unsteady states, depending on the variation in the distance between the cylinders.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
Hyun Woo Cho, Young Min Seo, Gi Su Mun, Man Yeong Ha, Yong Gap Park,