Measurements of Turbulent Mixed Convection Flow Over a Vertical Forward-Facing Step
Measurements of turbulent mixed convection boundary-layer air flow over a two-dimensional, vertical forward-facing step are presented. The upstream and downstream walls and the step itself were heated to a uniform and constant temperature. Air velocity and temperature distributions and their turbulent fluctuations are measured simultaneously by using a two-component laser-Doppler velocimeter (LDV) and a cold wire anemometer were used, respectively. The present study treats buoyancy-dominated mixed convection over a vertical forward-facing step and examines the effect of a small free stream velocity on turbulent natural convection. It was found that the reattachment length increases while the heat transfer rate from the downstream heated wall decreases as the small free stream velocity increases.
B. F. Armaly et al., "Measurements of Turbulent Mixed Convection Flow Over a Vertical Forward-Facing Step," Proceedings of the ASME Summer Heat Transfer Conference (2003, Las Vegas, NV), American Society of Mechanical Engineers (ASME), Jul 2003.
The definitive version is available at http://dx.doi.org/10.1115/HT2003-47088
ASME Summer Heat Transfer Conference (2003, Las Vegas, NV)
Mechanical and Aerospace Engineering
Keywords and Phrases
Vertical Forward-Facing Step; Air flow; Boundary layer
Article - Conference proceedings
© 2003 American Society of Mechanical Engineers (ASME), All rights reserved.