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Lattice Boltzmann‐based single‐phase method for free surface tracking of droplet motions
Author(s) -
Xing Xiu Qing,
Butler David Lee,
Yang Chun
Publication year - 2006
Publication title -
international journal for numerical methods in fluids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 112
eISSN - 1097-0363
pISSN - 0271-2091
DOI - 10.1002/fld.1282
Subject(s) - lattice boltzmann methods , computational fluid dynamics , tracking (education) , mechanics , free surface , fluent , physics , boundary value problem , classical mechanics , computer science , statistical physics , psychology , pedagogy , quantum mechanics
A 2D single‐phase free surface tracking model, based on the lattice Boltzmann method (LBM) is developed for simulating droplet motion. In contrast to the conventional multi‐phase models, it is not necessary to simulate the motion of the gas phase using this 2D single‐phase algorithm, and thus improves the computational efficiency without sacrificing the underlying physics. A method for special treatment of the relevant boundary conditions in the single‐phase algorithm is proposed and also validated. Numerical simulations are carried out for the motion of a free falling droplet with or without considering gravity and droplet spreading under gravity. The simulations of the LBM are found to be consistent with the results obtained from commercial computational fluid dynamics (CFD) software Fluent. Copyright © 2006 John Wiley & Sons, Ltd.