采用高速摄影仪对自行制备的水力直径为0.5 mm的水平微通道内气液两相流动进行了可视化实验研究,获得异形截面微通道内气液两相流型图,并与文献中微通道内气液两相流型图进行了对比.结果表明:在实验工况下,异形截面微通道内发现了泡状流,弹状流及平行流,且由于表面张力和憎水通道壁面的作用使得平行流易发生于该微通道内.此外,异形截面的形状和壁面润湿性对微通道内的流型及流型转换影响较大.
参考文献
| [1] | 钟先信.微系统研究展望[J].中国工程科学,2000(01):81-84. |
| [2] | Choi, C.;Yu, D.I.;Kim, M. .Surface wettability effect on flow pattern and pressure drop in adiabatic two-phase flows in rectangular microchannels with T-junction mixer[J].Experimental Thermal and Fluid Science: International Journal of Experimental Heat Transfer, Thermodynamics, and Fluid Mechanics,2011(6):1086-1096. |
| [3] | Wang, X.;Yong, Y.;Fan, P.;Yu, G.;Yang, C.;Mao, Z.-S..Flow regime transition for cocurrent gas-liquid flow in micro-channels[J].Chemical Engineering Science,2012:578-586. |
| [4] | Aritra Sur;Dong Liu.Adiabatic air-water two-phase flow in circular microchannels[J].International Journal of Thermal Sciences,2012:18-34. |
| [5] | Pawel Sobieszufe;Paiuef Cyganski;Ryszard Pohorecki .Bubble lengths in the gas-liquid Taylor flow in microchannels[J].Chemical Engineering Research & Design: Transactions of the Institution of Chemical Engineers,2010(3):263-269. |
| [6] | A. Kawahara;P. M.-Y. Chung;M. Kawaji .Investigation of two-phase flow pattern, void fraction and pressure drop in a microchannel[J].International Journal of Multiphase Flow,2002(9):1411-1435. |
| [7] | Li, W.;Wu, Z. .Generalized adiabatic pressure drop correlations in evaporative micro/mini-channels[J].Experimental Thermal and Fluid Science: International Journal of Experimental Heat Transfer, Thermodynamics, and Fluid Mechanics,2011(6):866-872. |
| [8] | B. R. Fu;Chin Pan .Bubble growth with chemical reactions in microchannels[J].International Journal of Heat and Mass Transfer,2009(3/4):767-776. |
| [9] | Jin-Cherng Shyu;Chung-Sheng Wei;Ching-Jiun Lee;Chi-Chuan Wang .Investigation of bubble effect in microfluidic fuel cells by a simplified microfluidic reactor[J].Applied thermal engineering: Design, processes, equipment, economics,2010(13):1863-1871. |
| [10] | Erik Kjeang;Jonathan McKechnie;David Sinton .Planar and three-dimensional microfluidic fuel cell architectures based on graphite rod electrodes[J].Journal of Power Sources,2007(2):379-390. |
| [11] | Haverkamp V;Hessel V;Lowe H;Menges G;Warnier MJF;Rebrov EV;de Croon MHJM;Schouten JC;Liauw MA .Hydrodynamics and mixer-induced bubble formation in micro bubble columns with single and multiple-channels[J].Chemical Engineering & Technology: Industrial Chemistry -Plant Equipment -Process Engineering -Biotechnology,2006(9):1015-1026. |
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