Drag Moderation by the Melting of an Ice Surface in Contact with Water

Ivan Uriev Vakarelski, Derek Y. C. Chan, Sigurdur T Thoroddsen

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

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.
Original languageEnglish (US)
JournalPhysical Review Letters
Volume115
Issue number4
DOIs
StatePublished - Jul 24 2015

Fingerprint

Dive into the research topics of 'Drag Moderation by the Melting of an Ice Surface in Contact with Water'. Together they form a unique fingerprint.

Cite this