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Dynamics of horizontal viscoelastic fluid filaments

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Abstract

The tension force of a thinning high-molecular polymer solution filament is measured using the filament itself as a force sensor. The axial filament stresses and the effects of fluid flow from the filament into adjacent drops are estimated. It is shown that these effects are insignificant for polymer solutions in a low-viscosity solvent (water) but substantial for solutions in a high-viscosity fluid (glycerine). A modification of the standard rheological capillary filament method is proposed. This modification makes it possible to exclude any hypotheses concerning the stress distribution pattern within the filament. Periodic transverse oscillations of the filament axis are revealed and analyzed.

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Authors
  1. A. V. Bazilevskii
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Original Russian Text © A.V. Bazilevskii, 2013, published in Izvestiya Rossiiskoi Akademii Nauk, Mekhanika Zhidkosti i Gaza, 2013, Vol. 48, No. 1, pp. 111–124.

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Bazilevskii, A.V. Dynamics of horizontal viscoelastic fluid filaments. Fluid Dyn 48, 97–108 (2013). https://doi.org/10.1134/S0015462813010110

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  • DOI: https://doi.org/10.1134/S0015462813010110

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