Type
ArticleKAUST Department
Clean Combustion Research CenterHigh-Speed Fluids Imaging Laboratory
Mechanical Engineering Program
Physical Science and Engineering (PSE) Division
Date
2011-05-23Permanent link to this record
http://hdl.handle.net/10754/552126
Metadata
Show full item recordAbstract
We demonstrate and quantify a highly effective drag reduction technique that exploits the Leidenfrost effect to create a continuous and robust lubricating vapor layer on the surface of a heated solid sphere moving in a liquid. Using high-speed video, we show that such vapor layers can reduce the hydrodynamic drag by over 85%. These results appear to approach the ultimate limit of drag reduction possible by different methods based on gas-layer lubrication and can stimulate the development of related energy saving technologies.Citation
Drag Reduction by Leidenfrost Vapor Layers 2011, 106 (21) Physical Review LettersPublisher
American Physical Society (APS)Journal
Physical Review LettersPubMed ID
21699302Additional Links
http://link.aps.org/doi/10.1103/PhysRevLett.106.214501ae974a485f413a2113503eed53cd6c53
10.1103/PhysRevLett.106.214501
Scopus Count
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