Temporal instability of a viscoelastic liquid thread in the presence of a surrounding viscoelastic fluid
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Non-Newtonian Fluid Mechanics"
DOI: 10.1016/j.jnnfm.2018.09.002
Abstract: Abstract This paper is concerned with the temporal stability analysis of an infinitely long thread of a viscoelastic fluid surrounded by another immiscible viscoelastic fluid. The study provides an extension of the dispersion relation derived… read more here.
Keywords: temporal instability; presence; fluid; viscoelastic fluid ... See more keywords
Linear instability of viscoelastic planar liquid sheets in the presence of gas velocity oscillations
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Non-Newtonian Fluid Mechanics"
DOI: 10.1016/j.jnnfm.2019.104169
Abstract: Abstract The linear temporal instability of a viscoelastic liquid sheet has been studied here, in the presence of gas velocity oscillations. The Floquet theory was applied to solve this problem. More than one unstable region… read more here.
Keywords: parametric unstable; presence gas; instability viscoelastic; gas velocity ... See more keywords
Marangoni instability in a viscoelastic binary film with cross-diffusive effect
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DOI: 10.1017/jfm.2020.941
Abstract: Abstract Viscoelastic liquids are usually blends of a polymeric solute and a Newtonian solvent. In the presence of a temperature gradient, stratification of these solutes can take place via the Soret effect. Here, we investigate… read more here.
Keywords: effect; marangoni instability; film; viscoelastic binary ... See more keywords
Convective and absolute instability of viscoelastic liquid jets in the presence of gravity
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DOI: 10.1063/1.5089242
Abstract: The convective and absolute instability of a viscoelastic liquid jet falling under gravity is examined for axisymmetrical disturbances. We use the upper-convected Maxwell model to provide a mathema... read more here.
Keywords: absolute instability; viscoelastic liquid; convective absolute; gravity ... See more keywords