Experimental and Numerical Study on Suppression of a Turbulent Fire Via Water Mist
Abstract
The present work provides a detailed experimental and numerical study on fire suppression phenomena via water mist in a buoyant, turbulent diffusion flame representing the key characteristics of a realistic fire. Detailed temperature and species fields in addition to heat transfer are presented at the base region of a heptane medium-scale pool fire during the addition of a water mist. The finely divided water mist (50μm) can’t be transported to the fire source due to upward buoyancy-induced flow, and its injection has a combustion-supporting effect. The customarily described well defined structure of the flame does not exist any longer by application of water mist. It is observed that the size and shape of the flame vary randomly and continuously due to sudden and short mist vaporization periods. Reduction in flame-to-liquid surface radiation heat feedback via cooling of thermal plume by water mist does not conduct to extinguishing of a fully developed turbulent fire. This behavior suggests that extinguishment is achieved by total clearance of the liquid surface rather than from the reduction in burning rate of liquid fuel. It is important to realize that the measurements are not instantaneous which are affected by the flame disruption, and only averaged values are provided for comparison with the predicted results.
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BibTeX
@article{houndekon2026experimental,
title = {{Experimental and Numerical Study on Suppression of a Turbulent Fire Via Water Mist}},
author = {Marianne Houndekon and Hui-Ying Wang and Bruno Coudour and Jean-Pierre Garo},
journal = {Journal of Engineering and Applied Sciences Technology},
year = {2026},
month = jul,
doi = {10.47363/jeast/2026(8)371},
url = {https://hal.science/hal-05769273v1},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Experimental and Numerical Study on Suppression of a Turbulent Fire Via Water Mist
AU - Marianne Houndekon
AU - Hui-Ying Wang
AU - Bruno Coudour
AU - Jean-Pierre Garo
PY - 2026
DA - 2026/07/20
JO - Journal of Engineering and Applied Sciences Technology
DO - 10.47363/jeast/2026(8)371
UR - https://hal.science/hal-05769273v1
AB - The present work provides a detailed experimental and numerical study on fire suppression phenomena via water mist in a buoyant, turbulent diffusion flame representing the key characteristics of a realistic fire. Detailed temperature and species fields in addition to heat transfer are presented at the base region of a heptane medium-scale pool fire during the addition of a water mist. The finely divided water mist (50μm) can’t be transported to the fire source due to upward buoyancy-induced flow, and its injection has a combustion-supporting effect. The customarily described well defined structure of the flame does not exist any longer by application of water mist. It is observed that the size and shape of the flame vary randomly and continuously due to sudden and short mist vaporization periods. Reduction in flame-to-liquid surface radiation heat feedback via cooling of thermal plume by water mist does not conduct to extinguishing of a fully developed turbulent fire. This behavior suggests that extinguishment is achieved by total clearance of the liquid surface rather than from the reduction in burning rate of liquid fuel. It is important to realize that the measurements are not instantaneous which are affected by the flame disruption, and only averaged values are provided for comparison with the predicted results.
SN - 2634-8853
ER -