Numerical modeling and experimental measurements of a high speed solid-cone water spray for use in fire suppression applications

Suk Goo Yoon, J. C. Hewson, P. E. Desjardin, D. J. Glaze, A. R. Black, R. R. Skaggs

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

Experimental measurements and numerical simulations of a high-speed water spray are presented. The numerical model is based on a stochastic separated flow technique that includes submodels for droplet dynamics, heat and mass transfer, and droplet-droplet collisions. Because the spray characteristics near the nozzle are difficult to ascertain, a new method for initialization of particle diameter size is developed that assumes a Rosin-Rammler distribution for droplet size, which correctly reproduces experimentally measured Sauter and arithmetic mean diameters. By relating the particle initialization to lower moments of the droplet statistics, it is possible to take advantage of measurements without substantial penalties associated with the greater experimental uncertainty of individual droplet measurements. Overall, very good agreement is observed in the comparisons of experimental measurements to computational predictions for the streamwise development of mean drop size and velocity. In addition, the importance of modeling droplet-droplet collisions is highlighted with comparison of selected droplet-droplet collision models.

Original languageEnglish
Pages (from-to)1369-1388
Number of pages20
JournalInternational Journal of Multiphase Flow
Volume30
Issue number11
DOIs
Publication statusPublished - 2004 Nov 1
Externally publishedYes

Fingerprint

sprayers
Cones
cones
Fires
high speed
retarding
Water
water
collisions
spray characteristics
rosin
separated flow
drop size
penalties
nozzles
mass transfer
heat transfer
statistics
moments
predictions

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Mechanical Engineering

Cite this

Numerical modeling and experimental measurements of a high speed solid-cone water spray for use in fire suppression applications. / Yoon, Suk Goo; Hewson, J. C.; Desjardin, P. E.; Glaze, D. J.; Black, A. R.; Skaggs, R. R.

In: International Journal of Multiphase Flow, Vol. 30, No. 11, 01.11.2004, p. 1369-1388.

Research output: Contribution to journalArticle

Yoon, Suk Goo ; Hewson, J. C. ; Desjardin, P. E. ; Glaze, D. J. ; Black, A. R. ; Skaggs, R. R. / Numerical modeling and experimental measurements of a high speed solid-cone water spray for use in fire suppression applications. In: International Journal of Multiphase Flow. 2004 ; Vol. 30, No. 11. pp. 1369-1388.
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