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Tsuruda, T., Liao, C. and Saito, N., 2001. Observation Of Extinction Of A Pmma Cylinder Flame With A Fine Water Mist. AOFST 5
Optical observations of extinction of a PMMA cylinder flame with a fine water mist are presented. Data was obtained from a PMMA flame in a water mist stream using a particle imaging system and a particle image velocimetry system (PIV). The flow field around the PMMA cylinder was solved using the matched asymptotic theory of the Stokes approximation and the Oseen approximation. The water mist used and PMMA cylinder flame are characterized with the flux density and mass burning rate. The results show that extinction of the PMMA flame occurs before the arrival of water mist to the PMMA surface. The flux density of the water mist of 1/6 of the standard Japanese sprinkler is sufficient to extinguish the used PMMA cylinder flame. After the PMMA flame extinction, separation of water mist and PMMA surface was observed.
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