| Thermocapillary flow on superhydrophobic surfaces. | |
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MedLine Citation:
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PMID: 21230215 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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A liquid in Cassie-Baxter state above a structured superhydrophobic surface is ideally suited for surface driven transport due to its large free surface fraction in close contact to a solid. We investigate thermal Marangoni flow over a superhydrophobic array of fins oriented parallel or perpendicular to an applied temperature gradient. In the Stokes limit we derive an analytical expression for the bulk flow velocity above the surface and compare it with numerical solutions of the Navier-Stokes equation. Even for moderate temperature gradients comparatively large flow velocities are induced, suggesting to utilize this principle for microfluidic pumping. |
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Authors:
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Tobias Baier; Clarissa Steffes; Steffen Hardt |
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Publication Detail:
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Type: Journal Article Date: 2010-09-01 |
Journal Detail:
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Title: Physical review. E, Statistical, nonlinear, and soft matter physics Volume: 82 ISSN: 1550-2376 ISO Abbreviation: Phys Rev E Stat Nonlin Soft Matter Phys Publication Date: 2010 Sep |
Date Detail:
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Created Date: 2011-01-14 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101136452 Medline TA: Phys Rev E Stat Nonlin Soft Matter Phys Country: United States |
Other Details:
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Languages: eng Pagination: 037301 Citation Subset: - |
Affiliation:
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Center of Smart Interfaces, Technische Universität Darmstadt, Petersenstraße 32, 64287 Darmstadt, Germany. baier@csi.tu-darmstadt.de |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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