Next Article in Journal
Centrifugal Step Emulsification can Produce Water in Oil Emulsions with Extremely High Internal Volume Fractions
Previous Article in Journal
Tunable Focus Liquid Lens with Radial-Patterned Electrode
Previous Article in Special Issue
Mixing Performance of a Serpentine Micromixer with Non-Aligned Inputs
Article Menu

Export Article

Open AccessArticle
Micromachines 2015, 6(8), 1166-1179; doi:10.3390/mi6081166

Comparative Analysis of Passive Micromixers at a Wide Range of Reynolds Numbers

Department of Mechanical and Aerospace Engineering (DIMEAS), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin, Italy
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Academic Editor: Yong Kweon Suh
Received: 30 June 2015 / Revised: 5 August 2015 / Accepted: 5 August 2015 / Published: 18 August 2015
(This article belongs to the Special Issue Micromixer & Micromixing)
View Full-Text   |   Download PDF [14243 KB, uploaded 18 August 2015]   |  

Abstract

Two 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
Keywords: micromixer; numerical simulation; split-and-recombine principle; mixing efficiency micromixer; numerical simulation; split-and-recombine principle; mixing efficiency
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Viktorov, V.; Mahmud, M.R.; Visconte, C. Comparative Analysis of Passive Micromixers at a Wide Range of Reynolds Numbers. Micromachines 2015, 6, 1166-1179.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Micromachines EISSN 2072-666X Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top