Drag Moderation by the Melting of an Ice Surface in Contact with Water
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ArticleKAUST Department
Clean Combustion Research CenterHigh-Speed Fluids Imaging Laboratory
Mechanical Engineering Program
Physical Science and Engineering (PSE) Division
Date
2015-07-24Permanent link to this record
http://hdl.handle.net/10754/561139
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We report measurements of the effects of a melting ice surface on the hydrodynamic drag of ice-shell-metal-core spheres free falling in water at a Reynolds of number Re∼2×104–3×105 and demonstrate that the melting surface induces the early onset of the drag crisis, thus reducing the hydrodynamic drag by more than 50%. Direct visualization of the flow pattern demonstrates the key role of surface melting. Our observations support the hypothesis that the drag reduction is due to the disturbance of the viscous boundary layer by the mass transfer from the melting ice surface.Citation
Drag Moderation by the Melting of an Ice Surface in Contact with Water 2015, 115 (4) Physical Review LettersPublisher
American Physical Society (APS)Journal
Physical Review LettersPubMed ID
26252689Additional Links
http://link.aps.org/doi/10.1103/PhysRevLett.115.044501http://physics.aps.org/articles/v8/73
ae974a485f413a2113503eed53cd6c53
10.1103/PhysRevLett.115.044501
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