DQSY型模拟降雨装置研制通报  

A circular on research of rainfall simulator-model DQSY

作　　者：党福江[1] 戈素芬[1] 郑娟[1] 

机构地区：[1]辽宁省水土保持研究所,辽宁朝阳122000

出　　处：《中国水土保持科学》2006年第5期99-102,共4页Science of Soil and Water Conservation

摘　　要：在分析、借鉴国内外研制经验的基础上，研制单喷头曲面设计、双层喷射变雨强弹簧调节的野外模拟降雨喷头，实现了以单喷头替代多喷头组合式模拟降雨装置，并达到同样模拟降雨效果。由于喷头采用曲面设计，确保喷射水舌有规律地变化；模拟雨滴动能接近于天然降雨动能；模拟降雨过程均匀；喷射面积稳定。实测证明：雨滴中数直径为0．57～4．26mm，降雨均匀系数≥0．8（±0．05），降雨面积为150m^2，模拟降雨强度为30～240mm／h。On the basis of the internal and external experiences, a single-spraying head simutator with curved-surface, double-lager, variable rainfall intensity spring was developed. Because of the curved-surface design, it can make the water tongue move regularly, so the artificial rainfall is just as like as the natural rainfall. The simulated rainfall process is well-distributed and spraying area is stable. The experiment showed that the midraindrop size is of 0.57 - 4.26 mm, rainfall area is of 150 m^2, and simulated rainfall intensity ranged 30 - 240 mm/h.

关 键 词：模拟降雨 相似性定律 均匀系数 降雨强度 稳定性 

分 类 号：S157.1[农业科学—土壤学]