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 language | English |
|---|---|
| Title of host publication | Proceedings of the ASME Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009 |
| Pages | 41-45 |
| Number of pages | 5 |
| Volume | 1 |
| DOIs | |
| Publication status | Published - 2010 |
| Event | ASME 2009 Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009 - Shanghai, China Duration: Dec 18 2009 → Dec 21 2009 |
Other
| Other | ASME 2009 Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009 |
|---|---|
| Country | China |
| City | Shanghai |
| Period | 12/18/09 → 12/21/09 |
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Keywords
- Coanda effect
- Microchannel
- Mixing index
- Tesla micromixer
ASJC Scopus subject areas
- Fluid Flow and Transfer Processes
Cite this
Numerical study on mixing of two fluids with modified Tesla structure. / Hossain, Shakhawat; Ansari, Mubashshir Ahmad; Husain, Afzal; Kim, Kwang Yong.
Proceedings of the ASME Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009. Vol. 1 2010. p. 41-45.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Numerical study on mixing of two fluids with modified Tesla structure
AU - Hossain, Shakhawat
AU - Ansari, Mubashshir Ahmad
AU - Husain, Afzal
AU - Kim, Kwang Yong
PY - 2010
Y1 - 2010
N2 - 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.
AB - 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.
KW - Coanda effect
KW - Microchannel
KW - Mixing index
KW - Tesla micromixer
UR - http://www.scopus.com/inward/record.url?scp=77954337833&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77954337833&partnerID=8YFLogxK
U2 - 10.1115/MNHMT2009-18117
DO - 10.1115/MNHMT2009-18117
M3 - Conference contribution
SN - 9780791843895
VL - 1
SP - 41
EP - 45
BT - Proceedings of the ASME Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009
ER -