Numerical analysis of the mixing of two electrolyte solutions in an electromagnetic rectangular micromixer

Yiping Chen; Chang Nyung Kim

Journal of Industrial and Engineering Chemistry, Vol.60, 377-389, April, 2018

DOI10.1016/j.jiec.2017.11.025 Export Citation

Numerical analysis of the mixing of two electrolyte solutions in an electromagnetic rectangular micromixer

Yiping Chen, 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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This study numerically examines the mixing performance of a new magneto-hydrodynamic (MHD) mixer for two different electrolyte solutions under a uniform magnetic field. The electrodes deposited on the duct wall with different voltages induce the current, creating Lorentz force under a uniform magnetic field, which makes the fluids move for pumping and mixing without additional pumps. Differently from previous designs, the proposed micro-mixer works as a simultaneous micro-pump and micro-mixer with the electrodes distributed peripherally in a screw-driving manner on the walls. The highest mixing index of 0.999 is obtained, which indicates the micromixer can achieve a highly-efficient mixing performance.

Keywords:Micromixer;Lorentz force;CFX;Electrolyte solution;MHD mixing

[References]

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Wen MM, Kim CN, Yan Y, J. Hydrodyn., 28(1), 114 (2016)
Fang Y, Ye Y, Shen R, Zhu P, Guo R, Hu Y, Wu L, J. Chem. Eng., 187, 306 (2012)

[1] Erickson D, Li DQ, Chim. Acta, 507, 11 (2004)

[2] Ma R, Fu T, Zhang Q, Zhu C, Ma Y, Li HZ, J. Ind. Eng. Chem., 54, 408 (2017)

[3] Dang TD, Kim YH, Kim HG, Kim GM, J. Ind. Eng. Chem., 18(4), 1308 (2012)

[4] Robin HL, Mark AS, Kendra VS, Michael GO, Juan GS, Ronald JA, Hassan A, David JB, J. Microelectromech. Syst., 9, 190 (2000)

[5] Falk L, Commenge JM, Chem. Eng. Sci., 65(1), 405 (2010)

[6] Choe J, Lee H, Kim YJ, Lee SM, Song KH, J. Ind. Eng. Chem., 14(1), 66 (2008)

[7] Ma YB, Fields M, Sun CP, Zhang FY, Liao JC, Li Y, Churchill BM, Ho CM, Boston, Massachusetts, Nano Science and Technology Institute (NSTI), p.651 2006.

[8] Niu X, Lee YK, J. Micromech. Microeng., 13, 454 (2003)

[9] Gobby D, Angeli P, Gavriilidis A, J. Micromech. Microeng., 11, 1126 (2001)

[10] Mansur EA, Ye MX, Wang YD, Dai YY, Chin. J. Chem. Eng., 16(4), 503 (2008)

[11] Qian SZ, Zhu JZ, Bau HH, Phys. Fluids, 14(10), 3584 (2002)

[12] Yi M, Bau HH, Zhong J, Sens. Actuators B-Chem., 79, 205 (2001)

[13] Yi MQ, Qian SZ, Haim HB, J. Fluid Mech., 468, 153 (2002)

[14] Qian SZ, Bau HH, Sens. Actuators B-Chem., 106(2), 859 (2005)

[15] Panta YM, Lin W, Aryal S, Adhikari P, J. Biomed. Bioeng., 3(1), 86 (2012)

[16] La M, Kim W, et al., Int. J. Precis. Eng. Manufac., 15, 463 (2014)

[17] Hutchinson BR, Raithby GD, Numer. Heat Transf., 9, 511 (1986)

[18] Raw M, Robustness of coupled algebraic multigrid for the Navier-Stokes equations, A9618260, AIAA Meeting Paper 96-0297, 1996.

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

[20] Wen MM, Kim CN, Yan Y, J. Hydrodyn., 28(1), 114 (2016)

[21] Fang Y, Ye Y, Shen R, Zhu P, Guo R, Hu Y, Wu L, J. Chem. Eng., 187, 306 (2012)