Effect of surfactant on drop dynamics in linear flows

Petia M. Vlahovska, Jerzy Blawzdziewicz, Michael Loewenberg

Research output: Contribution to conferencePaper

Abstract

The effective stress of an emulsion of surfactant on drop dynamics in linear flows was analyzed. A compact perturbation solution for the deformation of a surfactant-covered drop, suspended in a fluid of the same viscosity, subjected to an arbitrary linear flow was developed. A third order perturbation solution for small deviations from sphericity was explicitly derived. Predictions of the small deformation theory for drop shape, surfactant distribution and emulsion rheology were in quantitative agreement with the numerical simulations, and in qualitative agreement with experimental data.

Original languageEnglish
Pages3901-3904
Number of pages4
StatePublished - 2004
Event2004 AIChE Annual Meeting - Austin, TX, United States
Duration: Nov 7 2004Nov 12 2004

Conference

Conference2004 AIChE Annual Meeting
CountryUnited States
CityAustin, TX
Period11/7/0411/12/04

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    Vlahovska, P. M., Blawzdziewicz, J., & Loewenberg, M. (2004). Effect of surfactant on drop dynamics in linear flows. 3901-3904. Paper presented at 2004 AIChE Annual Meeting, Austin, TX, United States.