Flow Velocity Profile of Micro Counter-Current Flows
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Flow velocity profiles of micro counter-current flow of aqueous and butylacetate phases in a microchannel having a width of 100 µm were measured by micro particle image velocimetry. In order to analyze the hydrodynamic characteristics of the counter-current flow, we derived a simple analytical model for the velocity profile. When flow rates of the aqueous and organic phases were 0.2 and 0.1 µl/min, the model agreed well with the experimental results. Predictions about the velocity profile will contribute to estimation of the extraction efficiency in the co-current and counter-current extraction process.
- Analytical Sciences
Analytical Sciences 23(2), 131-133, 2007-02-10
The Japan Society for Analytical Chemistry