Reynolds number effects in designing a micromixer for biomems application
Two-fluid mixing is an essential process in many microfluidic devices for Biomedical Micro-Electro-Mechanical Systems (BioMEMS) applications. For example, various biomedical and biochemical process involve the mixing of two fluids. The performance of such processes relies on effective and rapi...
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| Format: | Thesis |
| Language: | English English English |
| Published: |
2008
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/7331/1/24p%20INTAN%20SUE%20LIANA%20ABDUL%20HAMID.pdf http://eprints.uthm.edu.my/7331/2/INTAN%20SUE%20LIANA%20ABDUL%20HAMID%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/7331/3/INTAN%20SUE%20LIANA%20ABDUL%20HAMID%20WATERMARK.pdf |
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| Summary: | Two-fluid mixing is an essential process in many microfluidic devices for
Biomedical Micro-Electro-Mechanical Systems (BioMEMS) applications. For
example, various biomedical and biochemical process involve the mixing of two fluids.
The performance of such processes relies on effective and rapid mixing of samples and
reagents. This project discussed the mixing characteristics of two fluids with different
properties in term of Reynolds number (Re) with Y-Shape glass based micromixer.
Blood flow properties was used to be mixed with a particular type of reagents which the
difference in the properties of these two mixing fluids will be adjusted by varying the
viscosity. The laminar mixing of the two fluids inside these micromixers was simulated
at low «<I) Re flow. The Reynolds number parameters consist ofvs, mean fluid
velocity in m S·I, L is the characteristic length in m, f1 is the absolute dynamic fluid
viscosity in kgrn-Is-I, and p is the density of the fluid in kgrn-3. Simulation and
visualizations results were obtained using CoventorWare2006. The mixing
characterization will be based on the visualization results of the distribution field in
term of viscosity. In this study it was found that higher Reynolds number will results in
better mixing and smaller mixing channel width. |
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