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Artículo
The relationship between viscoelasticity and elasticity
(The Royal Society Publishing, 2020)
Soft materials that are subjected to large deformations exhibit an extremely rich phenomenology, with properties lying in between those of simple fluids and those of elastic solids. In the continuum description of these ...
Artículo
Infuence of the surface viscous stress on the pinch‑of of free surfaces loaded with nearly‑inviscid surfactants
(Nature Research, 2020-09)
We analyze the breakup of a pendant water droplet loaded with SDS. The free surface minimum radius measured in the experiments is compared with that obtained from a numerical solution of the Navier–Stokes equations for ...
Artículo
On the hydrodynamic focusing for producing microemulsions via tip streaming
(Cambridge University Press, 2022-03)
In this work we study experimentally and numerically the stability of hydrodynamic focusing to produce microemulsions. The jetting regime was produced experimentally for the lowest outer viscosity, while microdripping was ...
Artículo
Effect of an axial electric field on the breakup of a leaky-dielectric liquid filament
(American Institute of Physics Inc., 2021)
We study experimentally and numerically the thinning of Newtonian leaky-dielectric filaments subjected to an axial electric field. We consider moderately viscous liquids with high electrical permittivity. We analyze the ...
Artículo
Stability and tip streaming of a surfactant-loaded drop in an extensional flow. Influence of surface viscosity
(Cambridge University Press, 2022-03)
We study numerically the nonlinear stationary states of a droplet covered with an insoluble surfactant in a uniaxial extensional flow. We calculate both the eigenfunctions to reveal the instability mechanism and the ...