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
AN - SCOPUS:77954337833
SN - 9780791843895
T3 - Proceedings of the ASME Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009
SP - 41
EP - 45
BT - Proceedings of the ASME Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009
T2 - ASME 2009 Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009
Y2 - 18 December 2009 through 21 December 2009
ER -