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|a Feuillebois, Francois
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|a Massachusetts Institute of Technology. Department of Chemical Engineering
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|a Massachusetts Institute of Technology. Department of Mathematics
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|a Bazant, Martin Z.
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|a Bazant, Martin Z.
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|a Bazant, Martin Z.
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|a Vinogradova, Olga I.
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|a Transverse flow in thin superhydrophobic channels
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|b American Physical Society,
|c 2011-05-19T13:44:39Z.
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|z Get fulltext
|u http://hdl.handle.net/1721.1/62844
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|a We provide some general theoretical results to guide the optimization of transverse hydrodynamic phenomena in superhydrophobic channels. Our focus is on the canonical micro- and nanofluidic geometry of a parallel-plate channel with an arbitrary two-component (low-slip and high-slip) coarse texture, varying on scales larger than the channel thickness. By analyzing rigorous bounds on the permeability, over all possible patterns, we optimize the area fractions, slip lengths, geometry, and orientation of the surface texture to maximize transverse flow. In the case of two aligned striped surfaces, very strong transverse flows are possible. Optimized superhydrophobic surfaces may find applications in passive microfluidic mixing and amplification of transverse electrokinetic phenomena.
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|a Deutsche Forschungsgemeinschaft (DFG). Priority program (Vi 243/1-3)
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|a en_US
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|a Article
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|t Physical Review E
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