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Artículo
Global stability analysis of axisymmetric liquid-liquid flow focusing
(Cambridge University Press, 2020)
We analyse both numerically and experimentally the stability of the steady jetting tip streaming produced by focusing a liquid stream with another liquid current when they coflow through the orifice of an axisymmetric ...
Artículo
Self-similarity in the breakup of very dilute viscoelastic solutions
(Cambridge, 2020)
When pushed out of a syringe, polymer solutions form droplets attached by long and slender cylindrical filaments whose diameter decreases exponentially with time before eventually breaking. In the last stages of this ...
Artículo
Global stability analysis of bubbles rising in a vertical capillary with an external flow
(Cambridge University Press, 2023)
We study the linear stability of bubbles in a capillary tube under external flow. Yu et al. (J. Fluid Mech., vol. 911, 2021, pp. 1-19) showed that a rich variety of bubble dynamics occurs when a downward external flow is ...
Artículo
The role of charge relaxation in electrified tip streaming
(AIP Publishing, 2023-01-24)
We study experimentally and numerically the onset of tip streaming in an electrified droplet. The experiments show that, for a sufficiently small dimensionless conductivity, the droplet apex oscillates before ejecting a ...
Artículo
Artículo
Global stability analysis of flexible channel flow with a hyperelastic wall
(Cambridge University Press, 2022-03)
We consider the stability of flux-driven flow through a long planar rigid channel, where a segment of one wall is replaced by a pre-tensioned hyperelastic (neo-Hookean) solid of finite thickness and subject to a uniform ...
Artículo
Effects of geometry in the operation of coaxial electrosprays
(Elsevier, 2023-01)
Coaxial electrospray is a well established procedure to generate coaxial micro- and nano-structures (microcapsules and coaxial fibers). In this work we show the capabilities of a high-precision numerical code using dynamic ...
Artículo
Electrokinetic modelling of cone-jet electrosprays
(Cambridge University Express, 2023)
The physics of electrospray has been subject to an intense debate for three decades regarding the ultimate electrokinetics that determines the electric current and the size of the emitted droplets in the steady Taylor ...
Artículo
Transonic flow focusing: stability analysis and jet diameter
(Elsevier Ltd, 2021)
We study numerically and experimentally the stability of the transonic flow focusing used in serial femtosecond crystallography (SFX) to place complex biochemical species into the beam focus. Both the numerical and ...
Artículo
Regular and complex singularities of the generalized thin film equation in two dimensions
(Cambridge University Press, 2021)
We use a generalized version of the equation of motion for a thin film of liquid on a solid, horizontal substrate as a model system to study the formation of singularities in space dimensions greater than one. Varying ...