Reference : Bubble splitting in oscillatory flows on ground and in reduced gravity
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
http://hdl.handle.net/2268/59624
Bubble splitting in oscillatory flows on ground and in reduced gravity
English
[fr] Brisure de bulles dans un écoulement oscillant sur Terre et en gravité réduite
Yoshikawa, Harunori [> >]
Zoueshtiagh, Farzam [> >]
Caps, Hervé mailto [Université de Liège - ULg > Département de physique > Optofluidique >]
Kurowski, Pascal [> >]
Petitjeans, Philippe [> >]
2010
European Physical Journal E -- Soft Matter
Springer Science & Business Media B.V.
31
191
Yes (verified by ORBi)
International
1292-8941
1292-895X
New York
NY
[en] bubbles ; microgravity ; breakup
[en] The stability of centimeter scale air bubbles is studied in quiescent suspending liquid under
an imposed oscillatory acceleration field. Experiments were performed in reduced- and normal-gravity
environments. A strong acceleration resulted in an instability leading to the breakups of the bubbles in
both gravity environments. The breakup onset was investigated and found to be characterized by a critical
acceleration acr . The influence of the liquid viscosity and the gravitational environment was studied.
Empirical correlations for the onset are presented and discussed with the intention to reveal splitting
mechanism. The inertial mechanism often deemed to cause the breakup of drops sub jected to a rapid
gas stream is shown to give explanations consistent with the experiments. A breakup criterion for both
gravitational environments is proposed through discussions from an energetic point of view.
GRASP
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS ; belspo
Researchers
http://hdl.handle.net/2268/59624

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