Artificial freezing cloud test is an essential research project for an all-weather laboratory of the aero-plane intensity. According to FAA Appendix C, a range of liquid water content in air for artificial freezing cloud is 0 ~ 3.0 g/m3; a range of middle diameter in spray is 15 ~ 50 μm. Atomization characteristics of the air assistant hole nozzles intended by all-weather key laboratory of the aero-plane intensity in China are measured. It is investigated that macroscopic and microcosmic spray characteristics and liquid water content in air are influenced by various air assistant pressures, water flow rates and atomizer sizes. Some specific methods of improving spray quality are proposed to satisfy the condition of artificial freezing cloud and selective preference atomizers. The results show that spray quality can be improved and water droplet size be reduced by larger spray angle, higher air assistant pressure, lower water flow rate, and larger nozzle size
CAO Jian-ming
,
LI Gen-bao
,
ZHU Hui
. Experimental Investigation on Spray Characteristics of Air-Assistant Nozzle[J]. Advances in New and Renewable Energy, 2018
, 6(4)
: 267
-273
.
DOI: 10.3969/j.issn.2095-560X.2018.04.003
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