ARTICLE:

• Simulations of the Natural Convection in a Side-heated Cavity with a Square Obstruction on the Sidewall  download article

John C. Patterson
School of Engineering, James Cook University, Townsville QLD 4811, Australia

F. Xu
School of Engineering, James Cook University, Townsville, QLD 4811, Australia

Chengwang Lei
School of Engineering, James Cook University, Townsville QLD 4811, Australia

ABSTRACT

The natural convection in a side-heated cavity with a square obstruction placed in the middle of the hot wall is investigated numerically. The results demonstrate that, firstly, the thermal boundary layer flow, blocked by the obstruction, forms a head, and then the head detaches from the hot wall, bypasses the obstruction, and reattaches to the thermal boundary layer. While the reattachment occurs, a complicated flow with circulations is induced, and the heat transfer through the hot wall is significantly enhanced.

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