Journal of the Japanese Society for Experimental Mechanics
Print ISSN : 1346-4930
ISSN-L : 1346-4930
The Motion of Microbeads in Shear Flow through a Conical Tube
Takeshi AKINAGAMasako SUGIHARA-SEKITomoaki ITANOJunichiro YAMAMOTO
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2010 Volume 10 Issue Special_Issue Pages s102-s106

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Abstract

Using confocal microscopy, we studied the individual motion of fluorescent platelet-sized latex beads suspended in glycerol-PBS solutions, flowing through a narrow gap of 80 μm width in a PDMS-conical channel with a round ball inside. The trajectories and the velocity profiles of the beads were investigated in the gap region, in the absence or presence of red cells at hematocrit 1%. The presence of red cells enhanced the fluctuations of the bead velocities and often deflected their trajectories from the streamlines of the suspending fluid, especially near the channel wall.

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© 2010 The Japanese Society for Experimental Mechanics
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