Open AccessThe onset of heterogeneity in the pinch-off of suspension drops
Author(s) -
Virgile Thiévenaz,
Alban Sauret
Publication year - 2022
Publication title -
proceedings of the national academy of sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.011
H-Index - 771
eISSN - 1091-6490
pISSN - 0027-8424
DOI - 10.1073/pnas.2120893119
Subject(s) - suspension (topology) , mechanics , nozzle , pinch , singularity , capillary action , drop (telecommunication) , physics , materials science , classical mechanics , thermodynamics , mathematics , geometry , engineering , mechanical engineering , homotopy , nuclear physics , pure mathematics
Significance The 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.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom