全射流及摇臂式喷头水量分布形状分析及组合计算  

Analysis on Water Distribution Shape and Combination Calculation of Complete Fluidic Sprinklers and Impact Sprinklers

作　　者：刘俊萍[1] 袁寿其[1] 李红[1] 朱兴业[1] 

机构地区：[1]江苏大学流体机械工程技术研究中心,江苏镇江212013

出　　处：《灌溉排水学报》2014年第4期168-170,174,共4页Journal of Irrigation and Drainage

基　　金：国家自然科学基金项目(51309117;51109098);国家高技术研究发展计划(863)项目(2011AA100506);江苏省高校自然科学研究项目(13KJB210003);中国博士后科学基金项目(2013M530239);江苏省博士后基金项目(1301144C);江苏大学高级专业人才科研启动基金项目(13JDG028)

摘　　要：以全射流喷头和摇臂式喷头为例,分析喷头喷洒水力性能,总结7组不同喷头主副喷嘴结构参数和不同工作参数下对应的水量分布形状,并选取水量分布函数进行拟合;同时,计算不同间距下的组合均匀性。结果表明,选取的水量分布函数拟合效果较好,形状基本一致,误差较小。1R、1.1R、1.2R、1.3R和1.4R组合间距下,第3组、第4组水量分布的均匀性系数较高,且大部分超过0.85,第7组水量分布的均匀性系数最低。The hydraulic performance experiments of complete fluidic sprinkler and impact sprinkler were carried out to summarize the water distribution shapes in seven different nozzle structure parameters and operating parameters. The water distribution functions were selected to fit water distribution, and the combination uniformity coefficients were calculated in different distances from the sprinkler. The results showed that the water distribution functions could well fit the water distribution, whose errors were small. With the combination distances of 1R, 1.1R, 1.2R, 1.3R and 1. 4R,the uniformity coefficients of the third and the fourth water distribution data were higher, most of which were more than 0.85, while the uniformity coefficients of the seventh water distribution data were the lowest.

关 键 词：全射流喷头 摇臂式喷头 水量分布 函数拟合 组合计算 

分 类 号：S277.94[农业科学—农业水土工程]