微矩形通道内水的流动特性分析  

Analysis on Flow Characteristics of Water Flowing Through Rectangular Microchannel

作　　者：黄蕾[1] 王彦红[1] 

机构地区：[1]洛阳理工学院,河南洛阳471023

出　　处：《建筑节能》2009年第5期37-39,共3页BUILDING ENERGY EFFICIENCY

摘　　要：设计微尺度流动实验测试系统,主要研究水在小雷诺数下流经矩形微通道时的流动特性。通过对相关实验数据进行分析计算,表明水在矩形微通道内流动时的压降值与阻力系数值均大于传统理论预测值。分析原因主要是微通道尺寸的测量误差和壁面粗糙度以及双电层的影响。An experimental system was built to study flow characteristics of rectangular microchannel in low Reynolds numbers. The analytical results indicated that pressure drop and friction factor in rectangular microchannel were bigger than those given by the conventional laminar flow theory. The analysis revealed that the error of experimental results resulted from the error of dimension measurement, roughness and the electric double layer.

关 键 词：微通道 流动特性 压降 阻力系数 

分 类 号：TK124[动力工程及工程热物理—工程热物理]