Numerical Simulation of Micromixing by Pulsatile Micropump

Min Chan Kim; Sin Kim; Joon Shik Park; Hyo Derk Park

Journal of Industrial and Engineering Chemistry, Vol.9, No.5, 602-606, September, 2003

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Numerical Simulation of Micromixing by Pulsatile Micropump

Min Chan Kim^†, Sin Kim¹, Joon Shik Park², and Hyo Derk Park²

Department of Chemical Engineering, Cheju National University, Cheju 690-756, Korea
¹Department of Nuclear and Energy Engineering, Cheju National University, Cheju 690-756, Korea
²Nano Mechatronics Research Center, Korea Electronics Technology Institute, Kyunggido 451-865, Korea

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A mixing in micromixer activated by pulsatile micropump is analyzed numerically and theoretically. The oscillatory flow generated by the micropump can induce the wavy interface to increase the contact area of mixing fluids and to enhance the mixing process. An optimal frequency of pulsatile flow is sought numerically, and confirmed by simple theoretical analysis. The fluids are mixed much better than when diffusion is the only mixing mechanism.

Keywords:micromixing;pulsatile flow;numerical simulation

[References]

Koch M, Evans A, Arthur B, Microfluidic Technology and Applications, Research Studies Press, Philadelphia, PA (2000)
Lee SY, Lee SJ, Jung HT, J. Ind. Eng. Chem., 9(1), 9 (2003)
Miyake R, Lammerink TS, Elwenspoek M, Fluitman J, Proc. 1999 IEEE MEMS Workshop, pp. 141-146 (1999)
Deshmukh AD, Liepmann D, Pisano AP, Proc. IEEE Solid-State Sensor and Actuator Workshop, pp. 73-76 (2000)
Tasi JH, Lin L, Sens. Actuators A-Phys., 97-98, 665 (2002)
Cussler EL, Diffusion, Cambridge University Press, New York, NY (1984)

[Related Articles]

[1] Koch M, Evans A, Arthur B, Microfluidic Technology and Applications, Research Studies Press, Philadelphia, PA (2000)

[2] Lee SY, Lee SJ, Jung HT, J. Ind. Eng. Chem., 9(1), 9 (2003)

[3] Miyake R, Lammerink TS, Elwenspoek M, Fluitman J, Proc. 1999 IEEE MEMS Workshop, pp. 141-146 (1999)

[4] Deshmukh AD, Liepmann D, Pisano AP, Proc. IEEE Solid-State Sensor and Actuator Workshop, pp. 73-76 (2000)

[5] Tasi JH, Lin L, Sens. Actuators A-Phys., 97-98, 665 (2002)

[6] Cussler EL, Diffusion, Cambridge University Press, New York, NY (1984)