Microscale fluid processes are an increasingly important subgroup of fluid
mechanics. Applications for heat transfer and micro-electro-mechanical devices
use flows on the scale of less than one hundred microns. This study is part of
a larger work in which a multiphase, high shear environment is studied in a microchannel
that has a depth of approximately 130 μm. Velocities are obtained
using non-invasive imaging schemes. Laser induced fluorescent Particle Image Velocimetry (PIV)
is used to analyze the velocity distribution in the microchannel.
Multiple image processing techniques are used to optimize the images for correlation calculations.
Velocity profiles for three flow rates and three void fractions (one
of which is zero) are developed experimentally. The effect of the microbubbles on
the PIV analysis is shown to flatten the profile through one primary mechanism
and possibly a secondary, less dominant mechanism. / Graduation date: 2006
| Identifer | oai:union.ndltd.org:ORGSU/oai:ir.library.oregonstate.edu:1957/28887 |
| Date | 05 December 2005 |
| Creators | Morse, Daniel R. |
| Contributors | Liburdy, Jim |
| Source Sets | Oregon State University |
| Language | en_US |
| Detected Language | English |
| Type | Thesis/Dissertation |
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