Dripping, jetting and tip streaming

JM Montanero, AM Gañán-Calvo - Reports on Progress in …, 2020 - iopscience.iop.org
Dripping, jetting and tip streaming have been studied up to a certain point separately by both
fluid mechanics and microfluidics communities, the former focusing on fundamental aspects …

Global eigenmodes of thin liquid sheets by means of volume-of-fluid simulations

A Della Pia, M Chiatto, L de Luca - Physics of Fluids, 2020 - pubs.aip.org
The unsteady dynamics of planar liquid sheet flows, interacting with unconfined gaseous
environments located on both sides of the liquid phase, is numerically investigated by …

Global modes of variable-viscosity two-phase swirling flows and their triadic resonance

S Schmidt, K Oberleithner - Journal of Fluid Mechanics, 2023 - cambridge.org
The linear and nonlinear dynamics of two-phase swirling flows produced by the Grabowski–
Berger profile under the influence of a viscosity stratification are investigated. We perform …

On the hydrodynamic focusing for producing microemulsions via tip streaming

M López, MG Cabezas, JM Montanero… - Journal of Fluid …, 2022 - cambridge.org
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 …

Global stability of axisymmetric flow focusing

F Cruz-Mazo, MA Herrada, AM Gañán-Calvo… - Journal of Fluid …, 2017 - cambridge.org
In this paper, we analyse numerically the stability of the steady jetting regime of gaseous
flow focusing. The base flows are calculated by solving the full Navier–Stokes equations and …

Dynamics of an elastoviscoplastic droplet in a Newtonian medium under shear flow

D Izbassarov, O Tammisola - Physical Review Fluids, 2020 - APS
The dynamics of a single elastoviscoplastic drop immersed in plane shear flow of a
Newtonian fluid is studied by three-dimensional direct numerical simulations using a finite …

Global stability analysis of axisymmetric liquid–liquid flow focusing

MG Cabezas, N Rebollo-Muñoz, M Rubio… - Journal of Fluid …, 2021 - cambridge.org
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 …

Effect of superimposed vibrations on droplet oscillation modes in prilling process

I Pavlenko, V Sklabinskyi, J Piteľ, K Židek, I Kuric… - Processes, 2020 - mdpi.com
This article was aimed to solve an urgent problem of ensuring quality for prilling processes
in vibrational prilling equipment. During the research, the need for the application of …

Instability of forced planar liquid jets: mean field analysis and nonlinear simulation

S Schmidt, K Oberleithner - Journal of Fluid Mechanics, 2020 - cambridge.org
The stability of forced planar liquid jets in a still gaseous environment is explored using
nonlinear simulation and spatial linear stability analysis. Harmonic modulation of the …

Understanding the destabilizing role for surface tension in planar shear flows in terms of wave interaction

L Biancofiore, E Heifetz, J Hoepffner, F Gallaire - Physical Review Fluids, 2017 - APS
Both surface tension and buoyancy force in stable stratification act to restore perturbed
interfaces back to their initial positions. Hence, both are intuitively considered as stabilizing …