The onset of heterogeneity in the pinch-off of suspension drops
Virgile Thiévenaz, Alban Sauret
Abstract
SignificanceThe pinch-off of a liquid drop extruded from a nozzle is a canonical situation that involves a series of self-similar regimes ending in a finite-time singularity. This configuration allows for exploring capillary flows over a large range of scales. In the case of suspension drops, the presence of particles breaks the self-similarity by introducing a length scale that can be much larger than the particle diameter. This length scale is a signature of the heterogeneities and delimitates a regime, in which a continuum approach of a suspension can be used from a regime where the discrete nature of the particles is involved.
Topics & Concepts
Suspension (topology)MechanicsNozzlePinchSingularityCapillary actionDrop (telecommunication)PhysicsMaterials scienceClassical mechanicsThermodynamicsMathematicsGeometryEngineeringMechanical engineeringHomotopyNuclear physicsPure mathematicsFluid Dynamics and Heat TransferElectrohydrodynamics and Fluid DynamicsNanomaterials and Printing Technologies