Droplets distribution research of impact sprinkler based on Laser Precipitation Monitor
Zhu Xingye1,2, Liu Xingfa1, Liu Junping1, Jiang Jianyuan1, TianKun1
1.National Research Center of Pumps, Jiangsu University, Zhenjiang, Jiangsu 212013, China; 2.Irrigated Agriculture Research and Extension Center, Washington State University, Prosser 99350, USA
Abstract：In order to research the droplet distribution of rotating sprinkler,droplet diameter and droplet velocity of 3026B impact sprinkler were measured by Laser Precipitation Monitor. The experiment was applied under the operating pressure of 0.15,0.20,0.25,0.30,0.35 MPa with no wind. Droplets mathematical models were built based on the method of least squares. Results showed that the relationships between droplets diameter and the distance along the sprinkler were indicted by exponential function,except the droplets at 4 meter from the sprinkler. The droplets frequency were up to 56.8%,64.35%,72.14%,61.72%,40.17% respectively, under the operating pressures of 0.15,0.20,0.25,0.30,0.35 MPa. The droplets frequency was the ratio of the droplets volume that diameter between in 1-3 mm to all the droplets in the whole spray area. The slope of droplets diameter cumulative frequency curve decreased with the operating pressure increasing. The relation between droplet velocity and droplet diameter were indicted by linear function model built. There were exponential relationships between droplet kinetic energy and the distance along the sprinkler.
朱兴业,, 刘兴发, 刘俊萍, 蒋建园, 田坤. 基于LPM的摇臂式喷头水滴分布试验研究[J]. 排灌机械工程学报, 2015, 33(10): 908-914.
Zhu Xingye,, Liu Xingfa, Liu Junping, Jiang Jianyuan, TianKun. Droplets distribution research of impact sprinkler based on Laser Precipitation Monitor. Journal of Drainage and Irrigation Machinery Engin, 2015, 33(10): 908-914.
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