Primary atomization of shear-thinning liquid jets: a direct numerical simulation study.
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
12 Oct 2024
12 Oct 2024
Historique:
received:
26
06
2024
accepted:
07
10
2024
medline:
13
10
2024
pubmed:
13
10
2024
entrez:
12
10
2024
Statut:
epublish
Résumé
Using direct numerical simulation, the primary atomization of shear-thinning liquid jets into stagnant gas is investigated. Starting from a Newtonian configuration with material properties approximately corresponding to a Diesel injection, two hypothetical shear-thinning cases using the power-law and the Carreau-Yasuda models for the calculation of the apparent viscosity are investigated. A recently developed tracking algorithm is used to identify droplets newly formed from the core jet, as well as all other droplets in the computational domain, and a number of relevant droplet characteristics, such as droplet volume, surface area and center of mass, is recorded at each time step. This allows a comparison of droplet characteristics on the basis of probability density functions. It is observed that the shear-thinning behavior of the liquid phase, which is particularly relevant at the interface, influences the droplet volumes and shapes. While the mean viscosity differs significantly for the different cases, the first- and second-order velocity and volume fraction statistics remain nearly unchanged.
Identifiants
pubmed: 39396066
doi: 10.1038/s41598-024-75553-4
pii: 10.1038/s41598-024-75553-4
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
23896Informations de copyright
© 2024. The Author(s).
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