8th Australasian Heat and Mass Transfer Conference.
DOI: 10.1615/ICHMT.2005.AustHeatMassTransfConf
ISBN Print: 978-1-56700-235-5
Observations of the Thermal Boundary Layer Flow along a Vertical Wall with a Square Obstruction in a Side-heated Cavity
page 4
DOI: 10.1615/ICHMT.2005.AustHeatMassTransfConf.160
ABSTRACT
Natural convection in a suddenly side-heated cavity with a square obstruction placed at the middle of the hot wall is visualized using a shadowgraph technique. The results show that the thermal boundary layer flow accumulates below the obstruction and forms a horizontal intrusion. Subsequently, the intrusion bypasses the obstruction, and reattaches to the downstream boundary. At the quasi-steady state, the thermal boundary layer forms a double-layer structure, which is split into two sections by the obstruction.