Origin of stratification in creaming emulsions

Daniel M. Mueth, John C. Crocker, Sergei E. Esipov, David G. Grier

    Research output: Contribution to journalArticle

    Abstract

    Colloidal suspensions aging under gravity have long been known to spontaneously separate into layers. We demonstrate through flow visualization experiments that a lateral temperature gradient as small as 10 mK/cm can be responsible for such stratification and that strata correspond to a stack of convection rolls. A linear stability analysis suggests that the onset of stratification results from a convective instability peculiar to fluids with inhomogeneous mass densities subjected to lateral thermal gradients.

    Original languageEnglish (US)
    Pages (from-to)578-581
    Number of pages4
    JournalPhysical Review Letters
    Volume77
    Issue number3
    StatePublished - 1996

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    stratification
    emulsions
    flow visualization
    strata
    colloids
    temperature gradients
    convection
    gravitation
    gradients
    fluids

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    Cite this

    Mueth, D. M., Crocker, J. C., Esipov, S. E., & Grier, D. G. (1996). Origin of stratification in creaming emulsions. Physical Review Letters, 77(3), 578-581.

    Origin of stratification in creaming emulsions. / Mueth, Daniel M.; Crocker, John C.; Esipov, Sergei E.; Grier, David G.

    In: Physical Review Letters, Vol. 77, No. 3, 1996, p. 578-581.

    Research output: Contribution to journalArticle

    Mueth, DM, Crocker, JC, Esipov, SE & Grier, DG 1996, 'Origin of stratification in creaming emulsions', Physical Review Letters, vol. 77, no. 3, pp. 578-581.
    Mueth DM, Crocker JC, Esipov SE, Grier DG. Origin of stratification in creaming emulsions. Physical Review Letters. 1996;77(3):578-581.
    Mueth, Daniel M. ; Crocker, John C. ; Esipov, Sergei E. ; Grier, David G. / Origin of stratification in creaming emulsions. In: Physical Review Letters. 1996 ; Vol. 77, No. 3. pp. 578-581.
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