Simulation of droplet generation in micro flow using MPS method

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

doi:10.1299/jsmeb.49.731

Simulation of droplet generation in micro flow using MPS method

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

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

18 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 language	English
Pages (from-to)	731-736
Number of pages	6
Journal	JSME International Journal, Series B: Fluids and Thermal Engineering
Volume	49
Issue number	3
DOIs	https://doi.org/10.1299/jsmeb.49.731
Publication status	Published - 2006
Externally published	Yes

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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10.1299/jsmeb.49.731

Cite this

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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.",

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AU - Harada, Takahiro

AU - Suzuki, Yukihito

AU - Koshizuka, Seiichi

AU - Arakawa, Takahiro

AU - Shoji, Shuichi

PY - 2006

Y1 - 2006

N2 - 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.

AB - 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.

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KW - Fluid dynamics

KW - Micro flow

KW - Particle method

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Simulation of droplet generation in micro flow using MPS method

Abstract

Keywords

ASJC Scopus subject areas

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