Large scale simulation of high pressure water mist systems

T. Sikanen, J. Vaari, S. Hostikka

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Abstract

Water mists systems are used to protect people and property from fires. They suppress fires by three main mechanisms: removal of heat from the gases, displacement of oxygen by water vapour and attenuation of radiation by droplets. Correct prediction of these mechanisms hinges on accurate modeling of droplet transport. This paper discusses the modeling and simulation of high speed water mist systems using Large Eddy Simulation and a Lagrangian description of the spray. The focus is on the droplet transport. Particular attention is given to the droplet injection model and sub models for coupling of the dispersed and continuous phases. Effects of turbulence modeling on droplet transport is explored. The modeling results are compared to experimental data from both small and large scale experiments.

Original languageEnglish
Title of host publicationComputational Methods in Multiphase Flow VII
Pages77-88
Number of pages12
Volume79
ISBN (Electronic)9781845647346
DOIs
Publication statusPublished - 2013
MoE publication typeA4 Article in a conference publication
EventInternational Conference on Computational and Experimental Methods in Multiphase and Complex Flow - A Coruna, Spain
Duration: 3 Jul 20135 Jul 2013
Conference number: 7

Conference

ConferenceInternational Conference on Computational and Experimental Methods in Multiphase and Complex Flow
Abbreviated titleMPF
CountrySpain
CityA Coruna
Period03/07/201305/07/2013

Keywords

  • Interphase momentum transfer
  • Lagrangian-eulerian
  • Large eddy simulation
  • Large scale
  • Turbulence modeling
  • Water mist

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