Comparative Analysis of Passive Micromixers at a Wide Range of Reynolds Numbers
AbstractTwo novel passive micromixers, denoted as the Y-Y mixer and the H-C mixer, based on split-and-recombine (SAR) principle are studied both experimentally and numerically over Reynolds numbers ranging from 1 to 100. An image analysis technique was used to evaluate mixture homogeneity at four target areas. Numerical simulations were found to be a useful support for the design phase, since a general idea of mixing of fluids can be inferred from the segregation or the distribution of path lines. Comparison with a well-known mixer, the Tear-drop one, was also performed. Over the examined range of Reynolds numbers 1 ≤ Re ≤ 100, the Y-Y and H-C mixers showed at their exit an almost flat mixing index characteristic, with a mixing efficiency higher than 90%; conversely the Tear-drop mixer showed a relevant decrease of efficiency at mid-range. Furthermore, the Y-Y and the H-C showed significantly less pressure drop than the Tear-drop mixer. View Full-Text
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Viktorov, V.; Mahmud, M.R.; Visconte, C. Comparative Analysis of Passive Micromixers at a Wide Range of Reynolds Numbers. Micromachines 2015, 6, 1166-1179.
Viktorov V, Mahmud MR, Visconte C. Comparative Analysis of Passive Micromixers at a Wide Range of Reynolds Numbers. Micromachines. 2015; 6(8):1166-1179.Chicago/Turabian Style
Viktorov, Vladimir; Mahmud, Md R.; Visconte, Carmen. 2015. "Comparative Analysis of Passive Micromixers at a Wide Range of Reynolds Numbers." Micromachines 6, no. 8: 1166-1179.