年間 12 号発行
ISSN 印刷: 1044-5110
ISSN オンライン: 1936-2684
Indexed in
MEASUREMENTS AND PREDICTIONS OF A LIQUID SPRAY FROM AN AIR-ASSIST NOZZLE
要約
Droplet size and velocity and gas velocity were measured in a water spray using a two-component phase/Doppler particle analyzer. Л complete set of measurements was obtained at axial locations from 5 to 50 cm downstream of the nozzle. The nozzle used was a simple axisymmetric air-assist nozzle. The sprays produced using the atomizer were extremely fine. Sauter mean diameters were less than 20 μm at all locations. Measurements were obtained for droplets ranging from 1 to 50 μm. The gas phase was seeded with micrometer-sized droplets, and droplets having diameters of 1.4 μm and less were used to represent gas-phase properties. Measurements were compared with predictions from a multiphase computer model. Initial conditions for the model were taken from measurements at 5 cm downstream. Predictions for both the gas phase and the droplets showed relatively good agreement with the measurements.
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