Experimental Study of Bubble Oscillations in Pure Liquids and in Surfactant Solutions

0377724 - ÚCHP 2013 SK eng C - Konferenční příspěvek (zahraniční konf.)
Vobecká, Lucie - Vejražka, Jiří - Tihon, Jaroslav
Experimental Study of Bubble Oscillations in Pure Liquids and in Surfactant Solutions.
Proceedings. Bratislava: AXIMA Graphics Design and Printing Services, 2012 - (Markoš, J.), s. 250. ISBN 978-80-89475-04-9.
[International Conference of Slovak Society of Chemical Engineering /39./. Tatranské Matliare (SK), 21.05.2012-25.05.2012]
Grant CEP: GA ČR GAP101/11/0806
Institucionální podpora: RVO:67985858
Klíčová slova: bubble oscillations * surface active agents
Kód oboru RIV: CI - Průmyslová chemie a chemické inženýrství

The contribution deals with study of the decay of bubble shape oscillations in pure liquids and in solutions of soluble surfactants. The bubble is excited by a motion of a tip of a capillary, to which the bubble is attached. The damping time and oscillation frequency are studied for the lowest three eigenmodes. It is observed that the bubble oscillation dynamics is strongly affected by surfactant presence. The addition of surfactant leads to the faster decay of oscillations and strange bahaviour of oscillation frequency, which initially increases and then suddenly drops.
Trvalý link: http://hdl.handle.net/11104/0209816