论文名称： Forced convective heat transfer and pressure drop of air flowing in a rectangle duct with cross-ribs on the opposite walls
作者： B.Deng，  T.T.Wong ， W.Q.Tao
来源出版物： Journal of Thermal Science
年卷期页： 2002,11(3):59-270
收录类型： SCI:V21SK;WOS:000208227100011
论文简介： Experiments were conducted to investigate the forced convective heat transfer and flow friction of turbulent airflow in a rectangular duct with cross-ribs attached at the two principal walls in the Reynolds number range from 5000 to 40000. The effect of the rib cross angle (45° 60° 75° and the height (4 mm, 5 mm) of the cross-ribs on the forced convection and flow friction were tested. Non-dimensional correlations for the duct average Nusselt number and friction factor of cross-ribs duct were developed from the test data. Experiments were also conducted for the corresponding parallel ribs to compare their relative performance. The experimental results show that both of the convective heat transfer coefficient and friction factor were increased with cross-ribs, with 45°cross-ribs being the best. Compared with parallel ribs normal to the flow direction under identical flow rate and identical pumping power constraints, the cross-ribs can enhance heat transfer in the lower Reynolds number region
原文链接： Forced convective heat transfer and pressure drop of air flowing in a rectangle duct with cross-ribs on the opposite walls