Image of the Week - February 27, 2002

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Mixing at the Microscale for a Given Flow Rate

The goal of this image is to visualize the mixing by diffusion of two fluorescent liquids at the microscale for a given flow rate. The 200-micron channels were manufactured inside a clear epoxy resin (EPON 828, Shell Chemical) cured with an aliphatiqc amine (EPI-CURE 3274, Shell Chemical). The two aqueous solutions were tagged with a green and red fluorescent dyes (Bright Dyes, Kingscote Chemicals) and flow at the fixed rate of 0.5 ml/hr. The mixing is visualized by the yellow color at the liquid interface.

The picture was taken using the 2.5 x objective of the fluorescent microscope by Daniel Therriault, Ph.D. candidate of the Aeronautical and Astronautical Engineering Department. This research sponsored by the AFOSR is part of the Self-Healing Research Group under the supervision of Dr. Scott White.

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Uploaded Wed Feb 27 11:37:37 2002 by Karl Garsha

Updated Tue Jan 26 10:34:07 2010 by Daniel E. Weber