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Modeling and Simulation of High Pressure Water Mist Systems

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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.

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Authors and Affiliations

  1. Fire Research, VTT Technical Research Centre of Finland, Kemistintie 3, P.O. Box 1000, 02044, Espoo, Finland

    Topi Sikanen, Jukka Vaari, Simo Hostikka & Antti Paajanen

Authors
  1. Topi Sikanen
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  2. Jukka Vaari
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  3. Simo Hostikka
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  4. Antti Paajanen
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Correspondence to Topi Sikanen.

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Sikanen, T., Vaari, J., Hostikka, S. et al. Modeling and Simulation of High Pressure Water Mist Systems. Fire Technol 50, 483–504 (2014). https://doi.org/10.1007/s10694-013-0335-8

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  • DOI: https://doi.org/10.1007/s10694-013-0335-8

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