摘要
为了实现自然条件下降雨强度的全范围的模拟,基于单个喷头的测试结果,将单喷头试验得到的水量分布数据作为一个多维向量,建立了多喷头在正方形布置时的仿真模型,得到不同间距条件下的均匀度系数和降雨量等值线图,分析确定最佳间距。并在此最佳间距下进行了实测试验,对4个喷头组合时降雨发生装置产生降雨环境进行均匀性和稳定性分析。结果表明:在目前的降雨发生装置产生的降雨环境中,可以在稳定时间之后,在东、西、南、北四个位置布置翻斗式雨量计进行大降雨强度测试。
In order to realize the full scope simulation of natural rainfall intensity,the observation pattern acquiredfrom single sprinkler is regarded as a multi-dimensioned vector,on which the established model of multiple sprin-klers in square layout is based. Then,the data of coefficients of uniformity and rainfall isoline map for four over-lapped sprinklers are analyzed and the optimum spacing is ascertained. Further more,in the condition of the opti-mum spacing,an experiment is conducted to evaluate uniformity and stability of the rainfall environment. The testresults indicate that tipping-bucket raingaugescan be located in four quarters of the compass so as to carry out largerainfall intensity test after the stability time in the current rainfall generator environment.
出处
《传感技术学报》
CAS
CSCD
北大核心
2016年第1期141-145,共5页
Chinese Journal of Sensors and Actuators
基金
国家自然科学基金项目(41327003
41475020)
关键词
降雨发生装置
大降雨强度
仿真
测试
rainfall generator
large rainfall intensity
simulation
test