Design and Numerical Simulation of a Three-Dimensional Nozzle Microstructured Mixer


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A passive microstructured mixer based on micro-ploughing technology with a multi-tooth tool is proposed. The mixer uses multiple three-dimensional nozzles to split one of the liquids into several micro-plumes. The fins on the surface of the nozzles induce a second liquid to generate turbulence around the local surface of the fins. The machining mechanism for fabricating 3D nozzles on a stainless steel sheet by micro-ploughing technology with a multi-tooth tool was studied. The machining process mainly involves four stages: tool-feeding, fin-forming, micro-hole-forming and tool-retracting. Simulation and flow visualization were used to evaluate its performance. The simulation results show the fin structure can induce local surface turbulence. The flow visualization indicates that when the flux is between 0.5ml/s and 3ml/s, the two liquids are fully mixed in 1second.



Edited by:

Shen Dong and Yingxue Yao




M. Q. Pan et al., "Design and Numerical Simulation of a Three-Dimensional Nozzle Microstructured Mixer", Key Engineering Materials, Vol. 339, pp. 343-347, 2007

Online since:

May 2007




[1] V. Hessel, H. Löwe and F. Schönfeld: Chem. Eng. Sci., Vol. 60 (2005), pp.2479-2501.

[2] A. Bertsch, S. Heimgartner, P. Cousseau and P. Renaud: The 14th IEEE International Conference on 21-25, (Jan 2001), pp.507-510.

[3] P. Chiarot, R.B. Mrad and P. Sullivan: Proceedings of the 2004 International Conference on MEMS, NANO and Smart Systems, (2004), pp.254-260.

[4] R. Miyake, T.S.J. Lammerink, M. Elwenspoek and J.H.J. Fluitman: Proceedings An Investigation of Micro Structures, Sensors, Actuators, Machines and Systems,. IEEE. 7-10 Feb, (1993), pp.248-253.

[5] J. Branebjerg, P. Gravesen, J.P. Krog and C.R. Nielsen: IEEE, The Ninth Annual International Workshop, Vol. 11-15 (Feb, 1996), pp.441-446.

[6] W. Ehrfeld, K. Golbig, V. Hessel, H. Löwe and T. Richter: Ind. Eng. Chem. Res., Vol. 38 (1999), pp.1075-1082.

[7] H. Jagannathan, G.G. Yaralioglu, A.S. Ergun and B.T. Khuri-Yakub: The Sixteenth Annual International Conference, Vol. 19-23, (Jan, 2003), pp.104-107.

[8] M.W. Losey, R.J. Jackman, S.L. Firebaugh, M.A. Schmidt and K.F. Jensen: J. Microelectro mechanical Systems, Vol. 11 (2002) No. 6, pp.709-717.

[9] H. Ukita and M. Kanehira: IEEE Journal on Selected Topics in Quantum Electronics, Vol. 8 (2002) No. 1, pp.111-117.

[10] Y. Tang, D.M. Zhou, W. Wang and J. Zhang: Journal of South China University of Technology of China (Natural Science Edition), Vol. 30 (2002) No. 2, pp.21-23.

[11] D. Gobby, P. Angeli and A. Gavriilidis: J. Micro-mech. Microeng., Vol. 11 (2001) No. 2, pp.126-132.