Simulation of droplet generation in micro flow using MPS method

Takahiro Harada, Yukihito Suzuki, Seiichi Koshizuka, Takahiro Arakawa, Shuichi Shoji

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Micro droplet generation is one of the basic functions in a micro total analysis system (micro TAS). Micro TAS has a lot of advantages and thus has wide range of applications in these days. In this study, a numerical calculation code for micro multi-phase flow is developed using Moving Particle Semi-implicit (MPS) method. Since surface tension is extremely strong and dominant in micro multi-phase flow, a time step is divided to sub-time steps for the surface tension term. This sub-time step algorithm enables us to calculate micro multi-phase flow efficiently with keeping numerical stability. Micro droplet generation in a micro channel is analyzed by the present code in two dimensions. The calculated droplet size, pitch and production rate show good agreement with those of the experiment.

Original languageEnglish
Pages (from-to)731-736
Number of pages6
JournalJSME International Journal, Series B: Fluids and Thermal Engineering
Volume49
Issue number3
DOIs
Publication statusPublished - 2006 Dec 1

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Keywords

  • Droplet generation
  • Fluid dynamics
  • Micro flow
  • Particle method

ASJC Scopus subject areas

  • Mechanical Engineering
  • Physical and Theoretical Chemistry
  • Fluid Flow and Transfer Processes

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