Transitional Flow and Heat Transfer Characteristics in a Rectangular Duct with Stagger-arrayed Short Pin Fins  

短小针肋阵列通道内转捩流动与传热性能的实验研究(英文)

作　　者：饶宇[1] 万超一[1] 臧述升[1] 

机构地区：[1]上海交通大学机械与动力工程学院叶轮机械研究所

出　　处：《Chinese Journal of Aeronautics》2009年第3期237-242,共6页中国航空学报（英文版）

基　　金：National Natural Science Foundation of China (50806045)

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...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...

关 键 词：COOLING transitional flow friction factor convective heat transfer 

分 类 号：V217[航空宇航科学与技术—航空宇航推进理论与工程]