Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7059772 | International Journal of Heat and Mass Transfer | 2011 | 4 Pages |
Abstract
This work studied the thermal convection under various slip boundary conditions in a 2D box with aspect ratio equal to two. The slip parameter is the normalized tangential momentum accommodation coefficient (TMAC, 0 ⩽ Ï ⩽ 1). The results show that the slip boundary conditions of vertical side walls (Ïv) and horizontal plates (Ïh) will affect the pattern selections of the flow and temperature fields. When Ïh < 0.02, the pattern is the one-roll mode for all Ïv. When Ïh ⩾ 0.02 and Ïv ⩽ 0.1, the fluids prefer the two-roll mode where two rolls make the fluids to move upwards in the middle of the box. While Ïh ⩾ 0.02 and Ïv ⩾ 0.2, the fluids prefer the other two-roll mode which makes the fluid to move downwards in the middle of the box.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
Long-Sheng Kuo, Wen-Pin Chou, Ping-Hei Chen,