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  • Numerical and experimental investigations of the formation process of ferrofluid droplets

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    Author(s)
    Liu, Jing
    Tan, Say-Hwa
    Yap, Yit Fatt
    Ng, Min Yuan
    Nam-Trung, Nguyen
    Griffith University Author(s)
    Nguyen, Nam-Trung
    Tan, Say Hwa H.
    Year published
    2011
    Metadata
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    Abstract
    This paper reports both experimental and numerical investigations of the formation process of ferrofluid droplets in a flow focusing configuration with and without an applied magnetic field. In the experiment, the homogenous magnetic field was generated using an electromagnet. The magnetic field in the flow direction affects the formation process and changes the size of the droplets. The change in the droplet size depends on the magnetic field strength and the flow rates. A numerical model was used to investigate the force balance during the droplet breakup process. A linearly magnetizable fluid was assumed. Particle level ...
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    This paper reports both experimental and numerical investigations of the formation process of ferrofluid droplets in a flow focusing configuration with and without an applied magnetic field. In the experiment, the homogenous magnetic field was generated using an electromagnet. The magnetic field in the flow direction affects the formation process and changes the size of the droplets. The change in the droplet size depends on the magnetic field strength and the flow rates. A numerical model was used to investigate the force balance during the droplet breakup process. A linearly magnetizable fluid was assumed. Particle level set method was employed to capture the interface movement between the continuous fluid and the dispersed fluid. Results of the droplet formation process and the flow field are discussed for both cases with and without the magnetic field. Finally, experimental and numerical results are compared.
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    Journal Title
    Microfluidics and Nanofluidics
    Volume
    11
    Issue
    2
    DOI
    https://doi.org/10.1007/s10404-011-0784-7
    Copyright Statement
    © 2011 Springer Berlin Heidelberg. This is an electronic version of an article published in Microfluidics and Nanofluidics, Volume 11, Issue 2, pp 177-187, 2011. Microfluidics and Nanofluidics is available online at: http://link.springer.com/ with the open URL of your article.
    Subject
    Mechanical engineering
    Engineering practice and education not elsewhere classified
    Nanotechnology
    Publication URI
    http://hdl.handle.net/10072/62146
    Collection
    • Journal articles

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