Forced-Flow Convection for Liquid Methanol Flowing through Microchannels

查看全文 作　　者：[1]X.F.Peng;[2]B.X.Wang 机构地区：[1]ThermalEngineeringDepartment,TsinghuaUniversity,Beijing100084,China;[2]ThermalEngineeringDepartment,Tsin 出　　处：《Journal of Thermal Science》索引1993年第2卷第3期,共10页 摘　　要：Experiments were conducted to investigate the single phase forced-flow convection of methanol flowing through microchannels with rectangular cross-section.The fully-developed turbulent convection regime was found to be initiated at about Re=1000-1500,The fully developed turbulent heat transfer can be predicted by the well-known Dittus-Boelter correlation with mere modification of the original empirical constant coefficient 0.023 to 0.00805.The transition and laminar heat transfer behaviors in microchannels are highly peculiar and complicated,and heavily affected by liquid temperature,velocity and microchannel size. 关 键 词：热交换器 强制对流 液体流