Wave drag on floating bodies

Marie Le Merrer; Christophe Clanet; David Queŕeá; Eĺie Raphaël; Fred́eŕic Chevy

doi:10.1073/pnas.1106662108

Wave drag on floating bodies

Marie Le Merrer
, Christophe Clanet
, David Queŕeá
, Eĺie Raphaël
, Fred́eŕic Chevy

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

Abstract

We measure the deceleration of liquid nitrogen drops floating at the surface of a liquid bath. On water, the friction force is found to be about 10 to 100 times larger than on a solid substrate, which is shown to arise from wave resistance. We investigate the influence of the bath viscosity and show that the dissipation decreases as the viscosity is increased, owing to wave damping. The measured resistance is well predicted by a model imposing a vertical force (i.e., the drop weight) on a finite area, as long as the wake can be considered stationary.

Original language	English
Pages (from-to)	15064-15068
Number of pages	5
Journal	Proceedings of the National Academy of Sciences of the United States of America
Volume	108
Issue number	37
DOIs	https://doi.org/10.1073/pnas.1106662108
Publication status	Published - 13 Sept 2011

Keywords

Capillary waves
Leidenfrost effect

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10.1073/pnas.1106662108

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title = "Wave drag on floating bodies",

abstract = "We measure the deceleration of liquid nitrogen drops floating at the surface of a liquid bath. On water, the friction force is found to be about 10 to 100 times larger than on a solid substrate, which is shown to arise from wave resistance. We investigate the influence of the bath viscosity and show that the dissipation decreases as the viscosity is increased, owing to wave damping. The measured resistance is well predicted by a model imposing a vertical force (i.e., the drop weight) on a finite area, as long as the wake can be considered stationary.",

keywords = "Capillary waves, Leidenfrost effect",

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AU - Le Merrer, Marie

AU - Clanet, Christophe

AU - Queŕeá, David

AU - Raphaël, Eĺie

AU - Chevy, Fred́eŕic

PY - 2011/9/13

Y1 - 2011/9/13

N2 - We measure the deceleration of liquid nitrogen drops floating at the surface of a liquid bath. On water, the friction force is found to be about 10 to 100 times larger than on a solid substrate, which is shown to arise from wave resistance. We investigate the influence of the bath viscosity and show that the dissipation decreases as the viscosity is increased, owing to wave damping. The measured resistance is well predicted by a model imposing a vertical force (i.e., the drop weight) on a finite area, as long as the wake can be considered stationary.

AB - We measure the deceleration of liquid nitrogen drops floating at the surface of a liquid bath. On water, the friction force is found to be about 10 to 100 times larger than on a solid substrate, which is shown to arise from wave resistance. We investigate the influence of the bath viscosity and show that the dissipation decreases as the viscosity is increased, owing to wave damping. The measured resistance is well predicted by a model imposing a vertical force (i.e., the drop weight) on a finite area, as long as the wake can be considered stationary.

KW - Capillary waves

KW - Leidenfrost effect

U2 - 10.1073/pnas.1106662108

DO - 10.1073/pnas.1106662108

M3 - Article

AN - SCOPUS:80053081092

SN - 0027-8424

VL - 108

SP - 15064

EP - 15068

JO - Proceedings of the National Academy of Sciences of the United States of America

JF - Proceedings of the National Academy of Sciences of the United States of America

IS - 37

ER -

Wave drag on floating bodies

Abstract

Keywords

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