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

Daniele Chiappini; Xiao Xue; Giacomo Falcucci; Mauro Sbragaglia

doi:10.1063/1.5044006

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

Daniele Chiappini, Xiao Xue, Giacomo Falcucci, Mauro Sbragaglia

Fluids and Flows

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

3 Citations (Scopus)

1 Downloads (Pure)

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.

Original language	English
Title of host publication	International Conference of Numerical Analysis and Applied Mathematics, ICNAAM 2017
Place of Publication	Piscataway
Publisher	American Institute of Physics
Number of pages	4
ISBN (Electronic)	9780735416901
DOIs	https://doi.org/10.1063/1.5044006
Publication status	Published - 10 Jul 2018
Event	15th International Conference of Numerical Analysis and Applied Mathematics (ICNAAM 2017) - Thessaloniki, Greece Duration: 25 Sep 2017 → 30 Sep 2017 Conference number: 15

Publication series

Name	AIP Conference Proceedings
Volume	1978

Conference

Conference	15th International Conference of Numerical Analysis and Applied Mathematics (ICNAAM 2017)
Abbreviated title	ICNAAM 2017
Country	Greece
City	Thessaloniki
Period	25/09/17 → 30/09/17

Access to Document

10.1063/1.5044006

Link to publication in Scopus

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title = "Ligament break-up simulation through pseudo-potential lattice Boltzmann method",

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, AIP Conference Proceedings, vol. 1978, American Institute of Physics, Piscataway, 15th International Conference of Numerical Analysis and Applied Mathematics (ICNAAM 2017), Thessaloniki, Greece, 25/09/17. https://doi.org/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 ( AIP Conference Proceedings; Vol. 1978).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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