Experimental Study on Spray Characteristics of Air Atomizing Nozzle
Based on the practical demand of using air atomizing nozzles for spray icing experiment in low-temperature environment,the spray characteristics of BIMJ 7004 air atomizing nozzle pro-duced by H.IKEUCHI & Co.,Ltd.are calibrated before putting the nozzle into use,including the compressed air and water flow rate,atomizing cone angle and droplets mean volume diameter(MVD)under various conditions.The influence of ambient temperature on the MVD was also investigated.The experimental results show that the MVD of the nozzle spray is most affected by the nozzle air and water inlet pressure,and is basically not affected by the ambient temperature,that is,at the ambient temperature of 0～20℃ and spray distance D=0.8 m,the droplet evaporation at the center line of spray has little effect on MVD.
spray characteristic calibrationMVDambient temperature
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