Numerical study on mixing of two fluids with modified Tesla structure

Shakhawat Hossain, Mubashshir Ahmad Ansari, Afzal Husain, Kwang Yong Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this study, a parametric investigation on mixing of two fluids in a modified Tesla microchannel, has been preformed. Modified Tesla micromixer applies both flow separation and vortices string principles to enhance the mixing. The fluid stream splits into two sub-streams and one of them mixes with the other again at the exit of the Tesla unit. Analyses of mixing and flow field have been carried out for a wide range of Reynolds number from 0.05 to 40. Mixing performance and pressure drop characteristics with two geometrical parameters, i.e, ratio of the diffuser gap to channel width (h/w) and ratio of the curved gap to the channel width (s/w), have been analyzed at six different Reynolds numbers. The vortical structure of the flow has been analyzed to explain mixing performance. The sensitivity analysis reveals that mixing is more sensitive s/w, than the h/w.

Original languageEnglish
Title of host publicationProceedings of the ASME Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009
Pages41-45
Number of pages5
Volume1
DOIs
Publication statusPublished - 2010
EventASME 2009 Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009 - Shanghai, China
Duration: Dec 18 2009Dec 21 2009

Other

OtherASME 2009 Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009
CountryChina
CityShanghai
Period12/18/0912/21/09

Keywords

  • Coanda effect
  • Microchannel
  • Mixing index
  • Tesla micromixer

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes

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  • Cite this

    Hossain, S., Ansari, M. A., Husain, A., & Kim, K. Y. (2010). Numerical study on mixing of two fluids with modified Tesla structure. In Proceedings of the ASME Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009 (Vol. 1, pp. 41-45) https://doi.org/10.1115/MNHMT2009-18117