862 王丽风 邵宝东 程转明唐艳军 WANG Yang,XUE Hong.Influence of thermophysical properties on the flow and heat transfer in rectangular microchannels.Chinese of,2008.23(6):675-680.(in Chi- 1 r MM.Wong K-C,Mansoor S.Numerical ngular micro-channels tions in Heat and Mas ®】鲁进利，周宾，许忠林，蒋洁，第雨含，郝英立不同截面微通道中流动阻力特性门。东南大 学学报（自然科学版），2011,41(3)：554557.(LUm,ZH0UBim,XU Zhong--im,1ANG Jie,GUO Yu-han.HAO Ying Fow characteriatics in microchannel with different er ross-ention g ）,2011,41(3):554557 (in Chinese) ]钟主海，刘 ·张 矩形 形有 通道内流体流动特 生的实验研究 程学报，20 ,中圆电机 (ZHONG Zhu-hai he CSEE,2012,32（14):7681.（in Chine) 00]粪磊，吴健康.微通道液体流动双电层阻力效应0.应用数学和力学，2006,27(10)：1219 1224.(GONG Lei,WU Jian crochannel Applod Mahemaris ad Medanis,2006,27(10):1219224.(in Chinese)) 1]Kays W M,Crawford M E.Coerire Heor and Mas Tranfor [M].New York:MeGraw-Hill. 1980. 2]Theodore L B.Adrienne SL,Frank P1.David P D.Fundameols f Hes and Mas Traefer [M] 7th ed.Hoboken:John Eiley Sons,2011. Fluid Flow and Heat Transfer Analysis of Single-Phase Steady Laminar Flow in Rectangular Micro-Channel Heat Sinks W ANG Li-feng,SHAO Bao-long,CHENG He-ming,TANG Yan-jun (Department of Engineering Mechanics,Architectural Engineering Institute, Kunming Unirersity of Science and Technology.Kunming 650500,P.R.China) Abstract:Fluid flow and heat transfer of single phase steady laminar flow in a rectangular micro- channel were investigated by analytic method.Based on the assumption of consant flow velocity and heat transfer along y direction,flow velocity and heat transfer equations for fluid flow in the rectangu ar micro-ch Ft t up.Then the of Nuss I number and Pe ow tha ratlo of te cros tends to infinity,Nus When R h sed.the fric and when the Key words:rectangular micro-channel:heat sink;Nussel number:Poiseulle number:steady lami nar flow W ANG Yang，XUE Hong． Influence of thermophysical properties on the flow and heat transfer in rectangular microchannels［J］． Chinese J ournal of Hydrodynamics，2008，23 ( 6) : 675-680． ( in Chi￾nese) ) ［7］ M ansoor M M ，W ong K-C，M ansoor S． Numerical investigation of fluid flow and heat transfer under high heat flux using rectangular micro-channels［J］． International Communications in Heat and Mass Transfer，2012，39( 2) : 291-297． ［8］ 鲁进利，周宾，许忠林，蒋洁，郭雨含，郝英立 ． 不同截面微通道中流动阻力特性［J］． 东南大 学学报( 自然科学版) ，2011，41( 3) : 554-557． ( LU Jin-li，ZHOU Bin，XU Zhong-lin，JIANG Jie，GUO Yu-han，HAO Ying-li ． Flow characteristics in microchannel with different cross-section ［J］． J ournal of Southeast University ( Natural Science Edition) ，2011，41( 3) : 554-557． ( in Chinese) ) ［9］ 钟主海，刘磊，樊辉青，张翔． 矩形和圆形微通道内流体流动特性的实验研究［J］． 中国电机工 程学报，2012，32 ( 14) : 76-81． ( ZHONG Zhu-hai，LIU Lei，FAN Hui-qing，ZHANG Xiang． Experimental study on flow characteristics in rectangular and circular microchannels［J］． Proceeding of the CSEE，2012，32( 14) : 76-81． ( in Chinese) ) ［10］ 龚磊，吴健康． 微通道液体流动双电层阻力效应［J］． 应用数学和力学，2006，27( 10) : 1219- 1224． ( GONG Lei，W U Jian-kang． Resistance effect of electric double layer on liquid flow in mi￾crochannel［J］． Applied Mathematics and Mechanics，2006，27( 10) : 1219-1224． ( in Chinese) ) ［11］ Kays W M ，Crawford M E． Convective Heat and Mass Transfer［M］． New York: M cGraw-Hill， 1980． ［12］ T heodore L B，Adrienne S L，Frank P I，David P D． Fundamentals of Heat and Mass Transfer［M］． 7th ed． Hoboken: John Eiley ＆ Sons，2011． Fluid Flow and Heat Transfer Analysis of Single-Phase Steady Laminar Flow in Rectangular Micro-Channel Heat Sinks W ANG Li-feng， SHAO Bao-dong， CHENG He-ming， T ANG Yan-jun ( Department of Engineering Mechanics，Architectural Engineering Institute， Kunming University of Science and Technology，Kunming 650500，P． R． China) Abstract: Fluid flow and heat transfer of single-phase steady laminar flow in a rectangular micro￾channel were investigated by analytic method． Based on the assumption of constant flow velocity and heat transfer along y direction，flow velocity and heat transfer equations for fluid flow in the rectangu￾lar micro-channel were set up． T hen the theoretical expressions of Nusselt number and Poiseuille number were derived． T he computed results show that the analytic solutions derived coincide well with the results of other literatures． W hen the aspect ratio of the cross section tends to infinity，Nus￾selt number and Poiseuille number tend to be 8． 235 and 96，respectively，which are identical to those of other literatures． W hen Reynolds number is fixed，the friction coefficient increases with the aspect ratio，and when the aspect ratio is fixed，the friction coefficient decreases with Reynolds number in￾crease． Key words: rectangular micro-channel; heat sink; Nusselt number; Poiseuille number; steady lami￾nar flow 862 王 丽 凤 邵 宝 东 程 赫 明 唐 艳 军