kth.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Droplet generation in ensembles of randomly corrugated ligaments
Institut Jean le Rond ∂’Alembert, Sorbonne Université and CNRS, Paris, France.
KTH, School of Engineering Sciences (SCI), Engineering Mechanics, Fluid Mechanics and Engineering Acoustics. KTH, School of Engineering Sciences (SCI), Centres, Linné Flow Center, FLOW.ORCID iD: 0000-0002-5983-9199
Institut Jean le Rond ∂’Alembert, Sorbonne Université and CNRS, Paris, France.
Institut Jean le Rond ∂’Alembert, Sorbonne Université and CNRS, Paris, France; Institut Universitaire de France (IUF), Paris, France.
2021 (English)In: ICLASS 2021 - 15th Triennial International Conference on Liquid Atomization and Spray Systems, ILASS - Europe, Institute for Liquid Atomization and Spray Systems , 2021Conference paper, Published paper (Refereed)
Abstract [en]

This study focuses on a statistical description of droplet sizes, created as a result of capillary-induced breakup of ligaments. Direct numerical simulations of air-water systems are employed by solving the two-phase Navier-Stokes equations on adaptive Octree grids (http://basilisk.fr/), using the VOF methodology coupled with height-function-based curvature modeling. Breakup of individual ligaments are triggered by initial surface corrugations, the dynamics of which are deterministic. Stochasticity is introduced in the mix by conducting an ensemble of simulations of slender corrugated ligaments, each realization corresponding to a random but unique initial configuration. Probability density functions of the droplet sizes are computed for different ensemble sizes. These results (fig. 1) combining the effects of stochasticity with the capillarity-driven nonlinear dynamics are compared to the predictions of a Gaussian random process theory for near-monochromatic waves, which facilitate our understanding of the nature of drop size distributions encountered in realistic and convoluted fluid fragmentation scenarios.

Place, publisher, year, edition, pages
ILASS - Europe, Institute for Liquid Atomization and Spray Systems , 2021.
Keywords [en]
atomization, DNS of air-water systems, drop size distributions, Gamma distribution, ligaments
National Category
Computational Mathematics Probability Theory and Statistics
Identifiers
URN: urn:nbn:se:kth:diva-342091Scopus ID: 2-s2.0-85180760548OAI: oai:DiVA.org:kth-342091DiVA, id: diva2:1826293
Conference
15th Triennial International Conference on Liquid Atomization and Spray Systems, ICLASS 2021, Edinburgh, United Kingdom of Great Britain and Northern Ireland, Aug 29 2021 - Sep 2 2021
Note

QC 20240111

Available from: 2024-01-11 Created: 2024-01-11 Last updated: 2024-01-11Bibliographically approved

Open Access in DiVA

No full text in DiVA

Scopus

Authority records

Crialesi-Esposito, Marco

Search in DiVA

By author/editor
Crialesi-Esposito, Marco
By organisation
Fluid Mechanics and Engineering AcousticsLinné Flow Center, FLOW
Computational MathematicsProbability Theory and Statistics

Search outside of DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric score

urn-nbn
Total: 26 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf