A NUMERICAL STUDY OF EMULSIFICATION PROCESS IN MICROFLUIDIC FLOW-FOCUSING DEVICES

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DASTOURANI H.; JAHANNAMA M.R.; ESLAMI MAJD A.

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Journal: JOURNAL OF SOLID AND FLUID MECHANICS Year:2016 | Volume:6 | Issue:1 Page(s): 273-284

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Title

A NUMERICAL STUDY OF EMULSIFICATION PROCESS IN MICROFLUIDIC FLOW-FOCUSING DEVICES

Author(s)

DASTOURANI H. | JAHANNAMA M.R. | ESLAMI MAJD A. | Issue Writer Certificate

Keywords

DROPLETQ1

EMULSIONQ1

FLOW RATEQ1

NUMERICAL SIMULATIONQ2

VISCOSITYQ1

Abstract

An EMULSION is a mixture of two immiscible liquids in which one liquid is dispersed in the form of small drops in the other one. The liquid in the form of DROPLETs is called the discrete phase, whereas the other liquid is termed as a continuous phase. One of the common methods for emulsification is based upon using microfluidic devices. Currently, the study of flow in microfluidic devices is highly regarded due to having many applications in various fields including DROPLET generation in relation with the standard and quality of human life. In this work, the process of DROPLET generation in microfluidic flow-focusing devices with orthogonal and intersecting flows is simulated. The effects of VISCOSITY and FLOW RATE of the discreted and continuous phases on the DROPLET generation process are also investigated. Based on the simulation results, increasing the FLOW RATE of the discreted phase (Qd) at a fixed continuous phase leads to the increment of DROPLET size, whereas an increase in the FLOW RATE of the continuous phase (Qc) at a fixed discreted phase results in a smaller DROPLET size. Moreover, for a constant Qc/Qd ratio, regardless of whether the discrete or continuous phase FLOW RATE is fixed, the equal DROPLET size is achieved. A higher VISCOSITY of the discrete phase provides a larger DROPLET size, whereas an increase in the VISCOSITY of the continuous phase leads to a smaller DROPLET size. The simulation results, in comparison with the experimental results, show a good agreement, confirming the accuracy of the proposed method.

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APA: Copy

DASTOURANI, H., JAHANNAMA, M.R., & ESLAMI MAJD, A.. (2016). A NUMERICAL STUDY OF EMULSIFICATION PROCESS IN MICROFLUIDIC FLOW-FOCUSING DEVICES. JOURNAL OF SOLID AND FLUID MECHANICS, 6(1), 273-284. SID. https://sid.ir/paper/212805/en

Vancouver: Copy

DASTOURANI H., JAHANNAMA M.R., ESLAMI MAJD A.. A NUMERICAL STUDY OF EMULSIFICATION PROCESS IN MICROFLUIDIC FLOW-FOCUSING DEVICES. JOURNAL OF SOLID AND FLUID MECHANICS[Internet]. 2016;6(1):273-284. Available from: https://sid.ir/paper/212805/en

IEEE: Copy

H. DASTOURANI, M.R. JAHANNAMA, and A. ESLAMI MAJD, “A NUMERICAL STUDY OF EMULSIFICATION PROCESS IN MICROFLUIDIC FLOW-FOCUSING DEVICES,” JOURNAL OF SOLID AND FLUID MECHANICS, vol. 6, no. 1, pp. 273–284, 2016, [Online]. Available: https://sid.ir/paper/212805/en

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