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Simulation of multiphase micro-drop dynamics using dissipative particle dynamics

Liu Mou-Bin Chang Jian-Zhong Liu Han-Tao

Simulation of multiphase micro-drop dynamics using dissipative particle dynamics

Liu Mou-Bin, Chang Jian-Zhong, Liu Han-Tao
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  • Received Date:  25 October 2007
  • Accepted Date:  12 December 2007
  • Published Online:  20 July 2008

Simulation of multiphase micro-drop dynamics using dissipative particle dynamics

  • 1. (1)新加坡南洋理工大学化学与生物医学工程系,新加坡 649798; (2)中北大学机电工程学院,太原 030051

Abstract: This paper presents a modified dissipative particle dynamics (DPD) method,which employs an interaction potential with short-range repulsion and long-distance attraction. The modified DPD method is capable of simulating liquids with free surfaces,the behavior of bubbly liquids,drop dynamics and other important multiphase fluid flow processes. The modified DPD method was used to investigate the formation of micro-drops,and 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 dynamics,and is of significant importance for investigating complex multiphase systems at micro-meso-scales.

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