Modeling and Simulation of High Pressure Water Mist Systems

Topi Sikanen (Corresponding Author), Jukka Vaari, Simo Hostikka, Antti Paajanen

    Research output: Contribution to journalArticleScientificpeer-review

    12 Citations (Scopus)

    Abstract

    This paper describes work done to improve and validate the capability of fire dynamics simulator (FDS) to predict the dynamics of water mist sprays. Three single orifice and five multi-orifice spray heads are modeled with FDS based on information on the flow-rate, spray angle, operating pressure and experimentally determined particle size distribution. The capability of FDS to predict the drop size, velocity, mist flux and number concentration profiles within the spray cone is assessed. The effects of turbulence modeling on the predictions of the spray dynamics is investigated. The capability of FDS to predict the air entrainment by high-speed water sprays is validated using experiments in rectangular channels with open ends.
    Original languageEnglish
    Pages (from-to)483-504
    Number of pages22
    JournalFire Technology
    Volume50
    Issue number3
    DOIs
    Publication statusPublished - 2014
    MoE publication typeA1 Journal article-refereed

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    Keywords

    • CFD
    • high pressure
    • spray dynamics
    • three-way coupling
    • turbulence
    • water mist

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