An experimental analysis is here proposed on water-mistsprays operating at high supply pressure. Advancedlaser-based diagnostics has been employed to performmeasurements. In particular, a Malvern Spraytec devicehas been used to measure drop-size distribution at various distances from the injector outlet along the spray axis. Moreover, initial velocity has been determined through a PIV analysis. Some evaluations of the spraycone angle have been proposed as an additional outcome of the analysis. Different nozzles have beenemployed to produce the water-mist spray and operativepressure has been set at values of interest for fireprotectionapplications, which constitute the reference field for the present work.

Drop-size and initial-velocity measurements in water-mist sprays / Santangelo, Paolo Emilio; Valdiserri, Paolo; Tartarini, Paolo. - STAMPA. - (2009), pp. 131-136. ((Intervento presentato al convegno XXVII Congresso Nazionale UIT sulla Trasmissione del Calore tenutosi a Reggio Emilia, Italia nel 22-24 Giugno 2009.

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