Atomization of an undulating liquid sheet

Nicolas P. Bremond, Christophe Clanet, Emmanuel Villermaux

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

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Abstract

This paper presents an experimental study devoted to the understanding of break-up mechanisms of liquid sheets. The studied sheet is formed by the normal collision of a round jet on a solid rod which can oscillates vertically. The liquid expands radially in air initially at rest. A shear instability develops at the interface liquid/gas resulting in an undulated motion of the liquid sheet. Because of the velocity contrast between the liquid and the surface waves, the liquid is submitted to transient accelerations as it moves through the undulations. This situation trigs a Rayleigh-Taylor instability leading to azimuthal thickness modulations. The thickness profile governs the free rim shape and therefore the drops formation. A model including the development of both instabilities allows us to predict the sheet and drops sizes.
Original languageEnglish
Title of host publicationMechanics of the 21st Century
Subtitle of host publicationProceedings of the 21st International Congress of Theoretical and Applied Mechanics, Warsaw, Poland, 15-21 August 2004
EditorsTomasz A. Kowalewski, Witold Gutkowski
PublisherSpringer
Number of pages2
ISBN (Electronic)978-1-4020-3559-3
ISBN (Print)978-94-007-8907-4
Publication statusPublished - 16 Aug 2004
EventXXI International Congress of Theoretical and Applied Mechanics, ICTAM 2004 - Warsaw, Poland
Duration: 15 Aug 200421 Aug 2004
Conference number: 21

Conference

ConferenceXXI International Congress of Theoretical and Applied Mechanics, ICTAM 2004
Abbreviated titleICTAM
CountryPoland
CityWarsaw
Period15/08/0421/08/04

Fingerprint

atomizing
liquids
drop size
Taylor instability
liquid surfaces
rims
surface waves
rods
shear
modulation
collisions
air
profiles
gases

Cite this

Bremond, N. P., Clanet, C., & Villermaux, E. (2004). Atomization of an undulating liquid sheet. In T. A. Kowalewski, & W. Gutkowski (Eds.), Mechanics of the 21st Century: Proceedings of the 21st International Congress of Theoretical and Applied Mechanics, Warsaw, Poland, 15-21 August 2004 Springer.
Bremond, Nicolas P. ; Clanet, Christophe ; Villermaux, Emmanuel. / Atomization of an undulating liquid sheet. Mechanics of the 21st Century: Proceedings of the 21st International Congress of Theoretical and Applied Mechanics, Warsaw, Poland, 15-21 August 2004. editor / Tomasz A. Kowalewski ; Witold Gutkowski. Springer, 2004.
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title = "Atomization of an undulating liquid sheet",
abstract = "This paper presents an experimental study devoted to the understanding of break-up mechanisms of liquid sheets. The studied sheet is formed by the normal collision of a round jet on a solid rod which can oscillates vertically. The liquid expands radially in air initially at rest. A shear instability develops at the interface liquid/gas resulting in an undulated motion of the liquid sheet. Because of the velocity contrast between the liquid and the surface waves, the liquid is submitted to transient accelerations as it moves through the undulations. This situation trigs a Rayleigh-Taylor instability leading to azimuthal thickness modulations. The thickness profile governs the free rim shape and therefore the drops formation. A model including the development of both instabilities allows us to predict the sheet and drops sizes.",
author = "Bremond, {Nicolas P.} and Christophe Clanet and Emmanuel Villermaux",
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Bremond, NP, Clanet, C & Villermaux, E 2004, Atomization of an undulating liquid sheet. in TA Kowalewski & W Gutkowski (eds), Mechanics of the 21st Century: Proceedings of the 21st International Congress of Theoretical and Applied Mechanics, Warsaw, Poland, 15-21 August 2004. Springer, XXI International Congress of Theoretical and Applied Mechanics, ICTAM 2004, Warsaw, Poland, 15/08/04.

Atomization of an undulating liquid sheet. / Bremond, Nicolas P.; Clanet, Christophe; Villermaux, Emmanuel.

Mechanics of the 21st Century: Proceedings of the 21st International Congress of Theoretical and Applied Mechanics, Warsaw, Poland, 15-21 August 2004. ed. / Tomasz A. Kowalewski; Witold Gutkowski. Springer, 2004.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

TY - GEN

T1 - Atomization of an undulating liquid sheet

AU - Bremond, Nicolas P.

AU - Clanet, Christophe

AU - Villermaux, Emmanuel

PY - 2004/8/16

Y1 - 2004/8/16

N2 - This paper presents an experimental study devoted to the understanding of break-up mechanisms of liquid sheets. The studied sheet is formed by the normal collision of a round jet on a solid rod which can oscillates vertically. The liquid expands radially in air initially at rest. A shear instability develops at the interface liquid/gas resulting in an undulated motion of the liquid sheet. Because of the velocity contrast between the liquid and the surface waves, the liquid is submitted to transient accelerations as it moves through the undulations. This situation trigs a Rayleigh-Taylor instability leading to azimuthal thickness modulations. The thickness profile governs the free rim shape and therefore the drops formation. A model including the development of both instabilities allows us to predict the sheet and drops sizes.

AB - This paper presents an experimental study devoted to the understanding of break-up mechanisms of liquid sheets. The studied sheet is formed by the normal collision of a round jet on a solid rod which can oscillates vertically. The liquid expands radially in air initially at rest. A shear instability develops at the interface liquid/gas resulting in an undulated motion of the liquid sheet. Because of the velocity contrast between the liquid and the surface waves, the liquid is submitted to transient accelerations as it moves through the undulations. This situation trigs a Rayleigh-Taylor instability leading to azimuthal thickness modulations. The thickness profile governs the free rim shape and therefore the drops formation. A model including the development of both instabilities allows us to predict the sheet and drops sizes.

M3 - Conference contribution

SN - 978-94-007-8907-4

BT - Mechanics of the 21st Century

A2 - Kowalewski, Tomasz A.

A2 - Gutkowski, Witold

PB - Springer

ER -

Bremond NP, Clanet C, Villermaux E. Atomization of an undulating liquid sheet. In Kowalewski TA, Gutkowski W, editors, Mechanics of the 21st Century: Proceedings of the 21st International Congress of Theoretical and Applied Mechanics, Warsaw, Poland, 15-21 August 2004. Springer. 2004