Self-propulsion of surfactant droplets on inclined liquid films

D.K.N. Sinz, M. Hanyak, J.C.H. Zeegers, A.A. Darhuber

    Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademic

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    Samenvatting

    Other presentation title : Mobilization and self-propulsion of surfactant droplets on thin liquid films. We present a systematic investigation of the self-propulsion of insoluble surfactant droplets on spatially confined thin liquid films, deposited on chemically patterned substrates. We studied the dependence of the propelled distance of the droplets on the initial height of the deposited film as well as the initial spreading pressure of the surfactant. We observed an emulsification process of subphase liquid inside the surfactant droplets which is coupled to their self-propelling motion. Using the thin-film approximation, a numerical model is developed for an insoluble surfactant drop moving at constant velocity at the liquid-air interface, the predictions of which compare favorably with the experimental data.
    Originele taal-2Engels
    TitelProceedings of the 7th International Conference on Multiphase Flow, May 30 - June 4, 2010, Florida, USA
    RedacteurenJ. Sinclair Curtis S. Balachandar
    Plaats van productieTampa, Florida
    Pagina's1.7.3-1/7
    StatusGepubliceerd - 2010
    Evenement7th International Conference on Multiphase Flow (ICMF 2010), May 30-June 4, 2010, Tampa, FL, USA - Tampa, FL, Verenigde Staten van Amerika
    Duur: 30 mei 20104 jun 2010

    Congres

    Congres7th International Conference on Multiphase Flow (ICMF 2010), May 30-June 4, 2010, Tampa, FL, USA
    Verkorte titelICMF 2010
    LandVerenigde Staten van Amerika
    StadTampa, FL
    Periode30/05/104/06/10
    Ander7th International Conference on Multiphase Flow

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