Author(s)

R.E. Khayat, A. Luciani & L.A. Utracki

Abstract

We examine the influence of shear and elongation on the planar deformation of a drop as it is driven by the ambient flow of a surrounding fluid flowing in a convergent/divergent tube. A boundary element approach is adopted that requires the solution of two simultaneous integral equations on the drop/fluid interface and tube wall. Effects of the viscosity ratio, the initial position of the drop (with respect to the tube axis) and its diameter (relative to the tube dimension), on the motion of the drop are examined. 1 Introduction While extensive work has been devoted to the modeling and simulation of drops deforming in an infinite fluid medium, relatively little has been done in the case of a drop deforming in a confi

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