Open AccessSimulation of multiphase micro-drop dynamics using dissipative particle dynamics
Author(s) -
Chang Jian-Zhong,
Moubin Liu,
Hantao Liu
Publication year - 2008
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.57.3954
Subject(s) - dissipative particle dynamics , drop (telecommunication) , multiphase flow , dissipative system , mechanics , amplitude , range (aeronautics) , dynamics (music) , physics , particle (ecology) , classical mechanics , statistical physics , materials science , thermodynamics , optics , computer science , telecommunications , oceanography , nuclear magnetic resonance , acoustics , composite material , geology , polymer
This paper presents a modified dissipative particle dynamics (DPD) methodwhich employs an interaction potential with short-range repulsion and long-distance attraction. The modified DPD method is capable of simulating liquids with free surfacesthe behavior of bubbly liquidsdrop dynamics and other important multiphase fluid flow processes. The modified DPD method was used to investigate the formation of micro-dropsand the large-amplitude oscillations of an initially oblate liquid drop. The numerical results clearly demonstrate that the modified DPD method involving the interaction potential of short-range repulsion and long-distance attraction is capable of capturing the physics of multiphase micro-drop dynamicsand is of significant importance for investigating complex multiphase systems at micro-meso-scales.