Document Detail


Designing structured surfaces that repel fluid-borne particles.
MedLine Citation:
PMID:  22304186     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Using computational modeling, we examine particle-laden flows along surfaces decorated with periodic arrays of tilted posts. We show that when high-aspect-ratio posts are tilted against the flow direction, cross-stream circulatory secondary flows emerge. These circulatory flows enhance the net lift force acting on finite-sized particles transported by fluid, thereby repelling the particles from the wall and preventing their deposition. This hydrodynamic effect can potentially be used for designing antifouling and self-cleaning surfaces.
Authors:
Carina Semmler; Alexander Alexeev
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-12-5
Journal Detail:
Title:  Physical review. E, Statistical, nonlinear, and soft matter physics     Volume:  84     ISSN:  1550-2376     ISO Abbreviation:  -     Publication Date:  2011 Dec 
Date Detail:
Created Date:  2012-2-6     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101136452     Medline TA:  Phys Rev E Stat Nonlin Soft Matter Phys     Country:  -    
Other Details:
Languages:  ENG     Pagination:  066303     Citation Subset:  -    
Affiliation:
Institute of Fluid Mechanics, Karlsruhe Institute of Technology, D-76131 Karlsruhe, Germany.
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