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Certain peculiarities of the solutocapillary convection

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Institute of Continuous Media Mechanics, Ural Branch of the Russian Academy of Sciences, ul. akad. Koroleva 1, Perm, 614013, Russian Federation

This paper presents experimental results on the solutocapillary Marangoni convection, an effect that occurs in a thin horizontal layer of the inhomogeneous solution of a surface-tension-active agent (surfactant), either near the free upper boundary of the layer or near the surface of an air bubble injected into the fluid. A procedure using interferometry is developed for simultaneously visualizing convective flow structures and concentration fields. A number of new phenomena are observed, including the deformation and rupture of the liquid layer due to a surfactant droplet spread over its surface; bubble self-motion (migration) toward higher surfactant concentrations; self-sustained convective flow oscillations around stationary bubbles in a fluid vertically stratified in concentration; and the existence of a threshold for a solutal Marangoni flow in thin layers. A comparison of solutocapillary and thermo-capillary phenomena is made.

Fulltext pdf (1.6 MB)
Fulltext is also available at DOI: 10.1070/PU2008v051n10ABEH006566
PACS: 47.20.Dr, 47.55.nb, 47.55.pf (all)
DOI: 10.1070/PU2008v051n10ABEH006566
URL: https://ufn.ru/en/articles/2008/10/d/
000262714300004
2-s2.0-67849092394
2008PhyU...51.1027Z
Citation: Zuev A L, Kostarev K G "Certain peculiarities of the solutocapillary convection" Phys. Usp. 51 1027–1045 (2008)
BibTexBibNote ® (generic)BibNote ® (RIS)Medline RefWorks
RT Journal
T1 Certain peculiarities of the solutocapillary convection
A1 Zuev,A.L.
A1 Kostarev,K.G.
PB Physics-Uspekhi
PY 2008
FD 10 Oct, 2008
JF Physics-Uspekhi
JO Phys. Usp.
VO 51
IS 10
SP 1027-1045
DO 10.1070/PU2008v051n10ABEH006566
LK https://ufn.ru/en/articles/2008/10/d/

Оригинал: Зуев А Л, Костарев К Г «Особенности концентрационно-капиллярной конвекции» УФН 178 1065–1085 (2008); DOI: 10.3367/UFNr.0178.200810d.1065

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