中文摘要：

对一种毫米级的短小针肋阵列通道内转捩流动条件下的流阻和传热性能进行了实验研究,获得了摩擦因子、平均Nusselt数以及综合热性能参数。研究表明,在转捩流动条件下,短小针肋阵列能够显著强化对流传热,但同时也明显提高了摩擦阻力。实验结果与文献中的短针肋阵列通道流动和传热的实验结果进行了比较,本实验中短小针肋阵列的配置在转捩流动条件下传热性能提高68%以上,并且综合热性能也提高11%以上。

英文摘要：

This article describes an experimental study on friction and heat transfer performances of a transitional airflow in a rectangular channel with stagger-arrayed short pin fins. Friction factors, average Nusselt numbers and overall thermal performances of the transitional flow are obtained. The experimental study has showed that the pin fins enhance the heat transfer performance sig- nificantly, however increasing the flow frictional resistance considerably. After comparing the experimental results with the p...