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A numerical study of an elastoviscoplastic (EVP) drop in Newtonian shear flow is presented. The three-dimensional Navier-Stokes equations are combined with the level-set method and the Saramito EVP model to… Click to show full abstract
A numerical study of an elastoviscoplastic (EVP) drop in Newtonian shear flow is presented. The three-dimensional Navier-Stokes equations are combined with the level-set method and the Saramito EVP model to study the yielding process under various nondimensional parameters. A regime map is obtained for the prediction of the yielded, unyielded, and partly yielded modes. It is shown that yielding is suppressed by a higher Bingham number but, surprisingly, also by a higher Weissenberg number.
Keywords:
shear;
shear flow;
droplet newtonian;
dynamics elastoviscoplastic;
elastoviscoplastic droplet
Journal Title: Physical Review Fluids
Year Published: 2020
Link to full text (if available)
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Journal Title: Physical Review Fluids
Year Published: 2020
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!