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    Numerical Simulation of the Collision of a Droplet with a Heated Solid Surface

    Access Status
    Fulltext not available
    Authors
    Gumulya, Monica
    Utikar, Ranjeet
    Pareek, Vishnu
    Tade, Moses
    Evans, G.
    Date
    2012
    Type
    Conference Paper
    
    Metadata
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    Citation
    Gumulya, M. and Utikar, R. and Pareek, V. and Tade, M. and Evans, G. 2012. Numerical Simulation of the Collision of a Droplet with a Heated Solid Surface, in Solnordal, C.B. et al (ed), Ninth International Conference on CFD in the Minerals and Process Industries, Dec 10-12 2012, pp. 1-6. CSIRO, Melbourne: CSIRO.
    Source Title
    Ninth International Conference on CFD in the Minerals and Process Industries
    Source Conference
    Ninth International Conference on CFD in the Minerals and Process Industries
    Additional URLs
    http://www.cfd.com.au/cfd_conf12/g.htm
    ISBN
    978-1-922173-01-0
    School
    Department of Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/29806
    Collection
    • Curtin Research Publications
    Abstract

    This paper discusses the development of a model for the evaporation of a droplet on heated solid surface. Associated issues include the construction of evaporative source terms, and their implementation into a multiphase (VOF) framework. This was done in conjunction with the Level Set method (CLSVOF), allowing the evaporation at the liquid-vapour and liquid-solid interface to be characterised accurately. The validity of the model was examined through comparisons with published experimental data. The model was found to be capable of reproducing the reduced droplet spreading rate as the surface temperature is increased away from the saturation temperature. This decrease in surface wetting results from the combined effects of surface tension, viscous forces and contact line evaporation. The effects of increased pressure due to evaporation, which in some cases can be quite severe such that the liquid gets lifted-off from the surface, were also captured, in good agreement with experimental observations.

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