Description
- Abstract:
- In fully-developed pressure-driven flow, the spreading of a dissolved solute is enhanced in the flow direction due to transverse velocity variations in a phenomenon now commonly referred to as Taylor dispersion. It is well understood that the characteristics of the dispersion are sensitive to the channel’s cross-sectional geometry. Here we demonstrate a method for manipulation of dispersion in a single microchannel via controlled deformation of one side of the channel’s walls. Using a rapid-prototyped multi-layer microchip, the lower channel wall is deformed by an external pressure source allowing us to characterize the dependence of the dispersion on the deflection of the channel wall and overall channel aspect ratio. Our experimental measurements are compared directly with theoretical predictions.
- Notes:
- Thesis (Sc. M.)--Brown University, 2020
Access Conditions
- Rights
- In Copyright
- Restrictions on Use
- All rights reserved. Collection is open to the Brown community for research.
Citation
Lee, Garam,
"Dispersion control in deformable microchannels"
(2020).
Fluid, Thermal, and Chemical Processes Theses and Dissertations.
Brown Digital Repository. Brown University Library.
https://doi.org/10.26300/anjp-7w21
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Fluid, Thermal, and Chemical Processes Theses and Dissertations
Theses and Dissertations for the Fluid, Thermal, and Chemical Processes department....