Ligament break-up simulation through pseudo-potential lattice Boltzmann method

Daniele Chiappini, Xiao Xue, Giacomo Falcucci, Mauro Sbragaglia

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

The Plateau-Rayleigh instability causes the fragmentation of a liquid ligament into smaller droplets. In this study a numerical study of this phenomenon based on a single relaxation time (SRT) pseudo-potential lattice Boltzmann method (LBM) is proposed. If systematically analysed, this test case allows to design appropriate parameters sets to deal with engineering applications involving the hydrodynamics of a jet. Grid convergence simulations are performed in the limit where the interface thickness is asymptotically smaller than the characteristic size of the ligament. These simulations show a neat asymptotic behaviour, possibly related to the convergence of LBM diffuse-interface physics to sharp interface hydrodynamics.

LanguageEnglish
Title of host publicationInternational Conference of Numerical Analysis and Applied Mathematics, ICNAAM 2017
Place of PublicationPiscataway
PublisherAmerican Institute of Physics
Number of pages4
ISBN (Electronic)9780735416901
DOIs
StatePublished - 10 Jul 2018
Event15th International Conference of Numerical Analysis and Applied Mathematics (ICNAAM 2017) - Thessaloniki, Greece
Duration: 25 Sep 201730 Sep 2017
Conference number: 15

Conference

Conference15th International Conference of Numerical Analysis and Applied Mathematics (ICNAAM 2017)
Abbreviated titleICNAAM 2017
CountryGreece
CityThessaloniki
Period25/09/1730/09/17

Fingerprint

ligaments
hydrodynamics
simulation
plateaus
fragmentation
relaxation time
grids
engineering
physics
causes
liquids

Cite this

Chiappini, D., Xue, X., Falcucci, G., & Sbragaglia, M. (2018). Ligament break-up simulation through pseudo-potential lattice Boltzmann method. In International Conference of Numerical Analysis and Applied Mathematics, ICNAAM 2017 [420003] Piscataway: American Institute of Physics. DOI: 10.1063/1.5044006
Chiappini, Daniele ; Xue, Xiao ; Falcucci, Giacomo ; Sbragaglia, Mauro. / Ligament break-up simulation through pseudo-potential lattice Boltzmann method. International Conference of Numerical Analysis and Applied Mathematics, ICNAAM 2017. Piscataway : American Institute of Physics, 2018.
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abstract = "The Plateau-Rayleigh instability causes the fragmentation of a liquid ligament into smaller droplets. In this study a numerical study of this phenomenon based on a single relaxation time (SRT) pseudo-potential lattice Boltzmann method (LBM) is proposed. If systematically analysed, this test case allows to design appropriate parameters sets to deal with engineering applications involving the hydrodynamics of a jet. Grid convergence simulations are performed in the limit where the interface thickness is asymptotically smaller than the characteristic size of the ligament. These simulations show a neat asymptotic behaviour, possibly related to the convergence of LBM diffuse-interface physics to sharp interface hydrodynamics.",
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Chiappini, D, Xue, X, Falcucci, G & Sbragaglia, M 2018, Ligament break-up simulation through pseudo-potential lattice Boltzmann method. in International Conference of Numerical Analysis and Applied Mathematics, ICNAAM 2017., 420003, American Institute of Physics, Piscataway, 15th International Conference of Numerical Analysis and Applied Mathematics (ICNAAM 2017), Thessaloniki, Greece, 25/09/17. DOI: 10.1063/1.5044006

Ligament break-up simulation through pseudo-potential lattice Boltzmann method. / Chiappini, Daniele; Xue, Xiao; Falcucci, Giacomo; Sbragaglia, Mauro.

International Conference of Numerical Analysis and Applied Mathematics, ICNAAM 2017. Piscataway : American Institute of Physics, 2018. 420003.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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N2 - The Plateau-Rayleigh instability causes the fragmentation of a liquid ligament into smaller droplets. In this study a numerical study of this phenomenon based on a single relaxation time (SRT) pseudo-potential lattice Boltzmann method (LBM) is proposed. If systematically analysed, this test case allows to design appropriate parameters sets to deal with engineering applications involving the hydrodynamics of a jet. Grid convergence simulations are performed in the limit where the interface thickness is asymptotically smaller than the characteristic size of the ligament. These simulations show a neat asymptotic behaviour, possibly related to the convergence of LBM diffuse-interface physics to sharp interface hydrodynamics.

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Chiappini D, Xue X, Falcucci G, Sbragaglia M. Ligament break-up simulation through pseudo-potential lattice Boltzmann method. In International Conference of Numerical Analysis and Applied Mathematics, ICNAAM 2017. Piscataway: American Institute of Physics. 2018. 420003. Available from, DOI: 10.1063/1.5044006