한국가시화정보학회:학술대회논문집
- 한국가시화정보학회 2004년도 Proceedings of 2004 Korea-Japan Joint Seminar on Particle Image Velocimetry
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- Pages.141-145
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- 2004
Micro-PIV measurement of internal flow in a micro droplet
- KINOSHITA Haruyuki (Institute of Industrial Science, The University of Tokyo) ;
- KOBAYASHI Toshio (Institute of Industrial Science, The University of Tokyo) ;
- OSHIMA Marie (Institute of Industrial Science, The University of Tokyo)
- 발행 : 2004.12.01
초록
Visualization and PIV measurements of the symmetrical recirculation flow in a nanoliter-sized droplet have been performed using the micro PIV system. The airflow sweeps over the nanoliter-sized liquid droplet fixed in a microchannel and the frictional force drags the liquid on the round interface, which causes the symmetrical recirculation flow in the droplet. The internal recirculation flow in the droplet has been visualized and measured successfully. The results of micro PIV measurement show the maximum speed of the recirculation flow is up to 10 mm/s. The high-speed recirculation can enhance a stirring effect and generate strong shear in the droplet, resulting in acceleration of mixing.