Surface tension supported floating of heavy objects: Why elongated bodies float better?

Edward Bormashenko

doi:10.1016/j.jcis.2015.10.031

Surface tension supported floating of heavy objects: Why elongated bodies float better?

Edward Bormashenko

Department of Chemical Engineering

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

Abstract

Floating of bodies heavier than the supporting liquid is discussed. Floating of cylindrical, ellipsoidal bodies and rectangular plates possessing lateral dimensions smaller than the capillary length is treated. It is demonstrated that more elongated bodies of a fixed volume are better supported by capillary forces, due to the increase in the perimeter of the triple line. Thus, floating of metallic needles obtains reasonable explanation.

Original language	English
Pages (from-to)	8-12
Number of pages	5
Journal	Journal of Colloid and Interface Science
Volume	463
DOIs	https://doi.org/10.1016/j.jcis.2015.10.031
State	Published - 1 Feb 2016

Keywords

Capillary length
Elongated bodies
Floating
Heavy objects
Surface tension

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10.1016/j.jcis.2015.10.031

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title = "Surface tension supported floating of heavy objects: Why elongated bodies float better?",

abstract = "Floating of bodies heavier than the supporting liquid is discussed. Floating of cylindrical, ellipsoidal bodies and rectangular plates possessing lateral dimensions smaller than the capillary length is treated. It is demonstrated that more elongated bodies of a fixed volume are better supported by capillary forces, due to the increase in the perimeter of the triple line. Thus, floating of metallic needles obtains reasonable explanation.",

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AB - Floating of bodies heavier than the supporting liquid is discussed. Floating of cylindrical, ellipsoidal bodies and rectangular plates possessing lateral dimensions smaller than the capillary length is treated. It is demonstrated that more elongated bodies of a fixed volume are better supported by capillary forces, due to the increase in the perimeter of the triple line. Thus, floating of metallic needles obtains reasonable explanation.

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KW - Floating

KW - Heavy objects

KW - Surface tension

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Surface tension supported floating of heavy objects: Why elongated bodies float better?

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Keywords

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