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On the effectiveness of a quasi-static bubble-scale simulation in predicting the constriction flow of a two-dimensional foam

Authors: S. A. Jones and S. J. Cox

DOI: http://dx.doi.org/10.1122/1.3687301

Abstract:

A comprehensive set of experiments on a two-dimensional constriction flow of a foam are described. Image analysis of the flow is used to ascertain bubble shape and flow dynamics. The bubble velocity, elongation (texture), stress, and deformation rate for a reference case are used to validate a quasistatic simulation. Changes to the constriction geometry, most especially in the rounding of the corners, have a significant effect on the response of the foam, captured in both experiment and simulation. On the other hand, foam properties such as bubble size have little impact on the rheological behavior of the foam in the range considered here.

Link to Paper

Authors

Professor Simon Cox

Professor Simon Cox

Study of foam, an example of soft condensed matter. Interested in modelling structural and dynamic properties of collections of bubbles to be able to predict their response in various applications.