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Study on the Characteristics of Bubble and Liquid Slugs for Gas-Liquid Taylor Flow in a Rectangular Micro-channel
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Study on the Characteristics of Bubble and Liquid Slugs for Gas-Liquid Taylor Flow in a Rectangular Micro-channel
Lee, Jun Kyoung; Lee, Kwan Geun;
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The characteristics of gas-liquid Taylor (Slug) flow in a square micro-channel of were investigated experimentally in this paper. The test fluids were nitrogen and water. The liquid and gas superficial velocities were 0.01~3 m/s and 0.1~3 m/s, respectively. Bubble and liquid slug length, bubble velocity, and frequency were measured by analyzing optical images using a high speed camera. Bubble length decreased with higher liquid flow rate, which increased dramatically with higher gas flow rate. However, slug length did not vary with changes in inlet liquid conditions. Additionally, bubble velocities and frequencies increased with higher liquid and gas flow rates. It was found that measured bubble lengths were in good agreement with the empirical models in the existing literature, but slug lengths were not.
Micro-channel;Two-phase flow;Taylor flow;Bubble;Slug;
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Shui, L., Eijkel, J., and Berg, A., 2007, Multiphase flow in micro- and nanochannels, Sensors and Actuators B, Vol. 121, pp. 263-276. crossref(new window)

Garstecki, P., Fuerstman, M. J., Stone, H. A., and Whitesides, G. M., 2006, Formation of droplets and bubbles in a microfluidic T-junction-scaling and mechanism of break-up, Lab Chip, Vol. 6, pp. 437-446. crossref(new window)

Steijn, V., Kreutzer, M. T., and Kleijn, C. R., 2007, Mu-PIV study of the formation of segmented flow in microfluidic T-junctions, Chem. Eng. Sci., Vol. 62, pp. 7505-7514. crossref(new window)

Fu, T., Ma, Y., Funfschilling, D., Zhu, C., and Li, H. Z., 2010, Squeezing-to-dripping transition for bubble formation in a microfluidic T-junction, Chem. Eng. Sci., Vol. 65, pp. 3739-3748. crossref(new window)

Chaoqun, Y., Yuchao, Z., Chunbo, Y., Minhui, D., Zhengya, D., and Guangwen, C., 2013, Characteristics of slug flow with inertial effects in a rectangular microchannel, Chem. Eng. Sci., Vol. 95, pp. 246-256. crossref(new window)

Qian, D. and Lawal, A., 2006, Numerical study on gas and liquid slugs for Taylor flow in a T-junction microchannel, Chem. Eng. Sci., Vol. 61, pp. 7609-7625. crossref(new window)

Pohorecki, R. and Kula, K., 2008, A simple mechanism of bubble and slug formation in Taylor flow in microchannels, Chem. Eng. Sci., Vol. 65, pp. 5256- 5263.

Yun, J., Lei, Q., Zhang, S., Shen, S., and Yao, K., 2010, Slug flow characteristics of gas-miscible liquids in a rectangular microchannel with cross and Tshaped junctions, Chem. Eng. Research and Design, Vol. 86, pp. 997-1001.

Yue, J., Luo, L., Gonthier, Y., Chen, G. and Yuan, Q., 2009, An experimental study of air-water Taylor flow and mass transfer inside square microchannels, Chem. Eng. Sci., Vol. 64, pp. 3697-3708. crossref(new window)

Lee, K. G., Lee, J. K., Park, T., Kim, G. N. and Park, E. J., 2015, Effect of various shapes of Mixer geometry on Two-phase flow Patterns in a Micro-channel, Korean J. Air-Condi. and Ref. Eng., Vol. 27, No. 2, pp. 75-80.

Zuber, N. and Findlay, J. A., 1968, Average volumetric concentration in two-phase flow system, Tran. of ASME, J. of Heat Transfer, Vol. 87, pp. 453-468.

Fukano, T. and Kariyasaki, A., 1993, Characteristics of gas-liquid two-phase flow in a capillary tube, Nuc. Eng. and Design, Vol. 141, pp. 59-68. crossref(new window)