Performance investigation of MHD micro-mixers with different pumping capabilities for two different miscible fluids

Xuejiao Xiao; Chang Nyung Kim

Journal of Industrial and Engineering Chemistry, Vol.60, 366-376, April, 2018

DOI10.1016/j.jiec.2017.11.024 Export Citation

Performance investigation of MHD micro-mixers with different pumping capabilities for two different miscible fluids

Xuejiao Xiao, and Chang Nyung Kim^{1, †}

Department of Mechanical Engineering, Graduate School, Kyung Hee University, Yong-in, Kyunggi-do 446-701, Republic of Korea
¹Department of Mechanical Engineering, College of Engineering, Kyung Hee University, Yong-in, Kyunggi-do 446-701, Republic of Korea

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In this study, a magnetohydrodynamic (MHD) micro-mixer with differential pumping capabilities for two different miscible fluids is newly proposed and numerically investigated. Lorentz-force can be created with different potentials applied to different electrodes, producing a differential pumping for the two fluids, and inducing a cross-sectional fluid circulation for mixing. The results show that the micro-mixer proposed can achieve high mixing performance for electrolytes. Here, the effect of the ratio of the potential difference in pumping section on the ratio of the mass flow rate of the two fluids is obtained in the form of an exponential function.

Keywords:Magnetohydrodynamics (MHD);Micro-mixer;Numerical simulation;CFD

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[1] Qian S, Bau HH, Mech. Eng. Appl. Mech. B, 106, 859 (2005)

[2] Luciano PA, Harry ES, Michael GM, Comsol Conference in Boston, University of Sao Paulo, 2013.

[3] Debamoy S, Isaac KM, Nick L, Ingrid F, Theoretical Fluid Mechanics Conference, 2011.

[4] Qian S, Bau HH, Mech. Res. Commun., 36, 10 (2009)

[5] Affanni A, Chiorboli G, Sept. 22.24, Florence, Italy, 2008.

[6] Jang JS, Lee Choi SS, Sens. Actuators A-Phys., 80, 84 (2000)

[7] Zhong JY, Bau HH, Sens. Actuators A-Phys., 96, 59 (2002)

[8] Mohammed AK, Ilija R, et al., IEEE Trans. Magn., 1 (2016).

[9] Dang TD, Cheney MA, Qian S, Joo SW, Min BK, J. Ind. Eng. Chem., 19(6), 1770 (2013)

[10] Lee HJ, Yoon TH, Park JH, Perumal J, Kim DP, J. Ind. Eng. Chem., 14(1), 45 (2008)

[11] Das C, Wang G, et al., Sens. Actuators A-Phys., 201, 43 (2013)

[12] Bau HH, Zhong J, et al., Sens. Actuators B-Chem., 79, 207 (2001)

[13] Gleeson JP, West J, Technical Proceeding of the 2002 International Conference on Modeling and Simulation of Microsystems, 318 (2002).

[14] Gleeson JP, Roche OM, et al., SIAM J. Appl. Math., 64(4), 747 (2004)

[15] Cerbelli S, Adrover A, et al., Microfluid. Nanofluid., 6, 747 (2009)

[16] Derakhshan S, Yazdani K, J. Mech., 32(1), 55 (2016)

[17] Kosuke I, Toru T, Takayasu F, Motoo I, J. Int. Counc. Electr. Eng., 4, 220 (2014)

[18] Lee SH, Kang HJ, et al., J. Microsyst. Technol., 15(2), 269 (2009)

[19] Hutchinson BR, Raithby GD, Numer. Heat Transf., 9, 511 (1985)

[20] Raw M, A9618260, AIAA Meeting Paper, 96-97 (1985).

[21] Shen WZ, Michelsen JA, Sorensen JN, AIAA J., 39(12), 2406 (2001)

[22] Xiao X, Kim CN, J. Ind. Eng. Chem., 38, 23 (2016)