Flow Characterization in T-Shaped and Cross-Shaped Micromixers

0359576 - ÚCHP 2012 RIV DE eng J - Journal Article
Ait Mouheb, N. - Montillet, A. - Solliec, C. - Havlica, Jaromír - Legentilhomme, P. - Comiti, J. - Tihon, Jaroslav
Flow Characterization in T-Shaped and Cross-Shaped Micromixers.
Microfluidics and Nanofluidics. Roč. 10, č. 6 (2011), s. 1185-1197. ISSN 1613-4982. E-ISSN 1613-4990
Institutional research plan: CEZ:AV0Z40720504
Keywords : micromixers * piv * electrochemical method
Subject RIV: CI - Industrial Chemistry, Chemical Engineering
Impact factor: 3.371, year: 2011

In this article, the flow behaviour of the T-shaped and the cross-shaped micromixers with square cross-section are studied through numerical and experimental investigations. From the particle image velocimetry (PIV) and electrochemical (ED) measurements, the flow topologies in the T-shaped and cross-shaped micromixers are very different. After liquid impact, it is observed that the vortex structures cover a longer part of the outlet channel in the case of the cross geometry. The high values of wall shear rate, in the impact zone, confirm the near wall disturbance created by the impingement of the flow and also the appearance of vortices that could enhance fluid mixing.
Permanent Link: http://hdl.handle.net/11104/0006443