[1]常琪琪,刘宝元,刘瑛娜,等.Veejet80150喷头特性及其在降雨机中的应用[J].水土保持研究,2021,28(02):130-134.
　CHANG Qiqi,LIU Baoyuan,LIU Yingna,et al.Characteristics of Veejet80150 Nozzle and Its Application in Rainfall Simulator[J].Research of Soil and Water Conservation,2021,28(02):130-134.
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Veejet80150喷头特性及其在降雨机中的应用

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 28 期数: 2021年02期 页码: 130-134 栏目: 出版日期: 2021-02-06
Title:
Characteristics of Veejet80150 Nozzle and Its Application in Rainfall Simulator
文章编号:
1005-3409(2021)02-0130-05
作者:
常琪琪1, 刘宝元1, 刘瑛娜2, 路炳军3, 符素华 1
(1.北京师范大学 地理科学学部 地理学院, 北京100875; 2.北京师范大学 地理科学学部 地表过程与资源生态国家重点实验室, 北京 100875; 3.北京易科立德生态环境科技有限责任公司, 北京 100141)
Author(s):
CHANG Qiqi1, LIU Baoyuan1, LIU Yingna2, LU Bingjun3, FU Suhua 1
(1.School of Geography, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China; 2.State Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China; 3.Beijing Eco-leader Environment Technology Co., Ltd., Beijing 100141, China)
关键词:
人工模拟降雨;  降雨强度;  降雨均匀性;  模拟降雨喷头;  喷头高度
Keywords:
artificial rainfall simulation;  rainfall intensity;  rainfall uniformity;  nozzle of artificial rainfall;  height of nozzle
分类号:
S157; P481
文献标志码:
A
摘要:
由于人工模拟降雨可以解决天然降雨耗时长、成本高以及难以取得精准控制数据等问题,越来越多的学者使用该方法进行科学研究。通过降雨量测量和计算分析方法,测定了Veejet80150喷头降雨特征参数,评价了改进后槽式下喷模拟降雨机的降雨均匀性。结果表明:Veejet80150喷头降雨面积为矩形,且随喷头高度增加而增加,中心点降雨强度随高度增加而减小,并从中心点向外呈规律性减小,便于多喷头组合,获得空间均匀降雨。多喷头组合降雨时,2.5 m高度下的降雨均匀系数在0.88～0.90范围内; 4 m高度下的降雨均匀系数在0.94～0.95范围内,该降雨机均匀性好,喷头高度大于2.5 m时可满足试验要求。
Abstract:
The observation of natural rainfall is time-consuming, cost and laboring, artificial rainfall simulation can solve these problems. By measuring, calculating and analyzing rainfall, the rainfall characteristic parameters of Veejet80150 were determined, and the uniformity of the improved trough rainfall simulator was evaluated. The results show that: The rainfall area of Veejet80150 nozzle is rectangular. As the height increase, the rainfall area increase, and the rainfall intensity at the central point decreases. The rainfall intensity of single nozzle decreases regularly from the central point outward, so as to facilitate the combination of multiple nozzles and obtain uniform rainfall in the space. In the case of multiple nozzles combination, the uniformity coefficient of the rainfall simulator at the height of 2.5 m is within the range of 0.88～0.90, and at the height of 4 m is within the range of 0.94～0.95. The rainfall simulator has good uniformity and can meet the best requirements when the nozzle height is great than 2.5 m.

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备注/Memo

收稿日期:2020-04-11 修回日期:2020-05-20
资助项目:第二次青藏高原综合科学考察“土壤质量变化及其对生态系统的影响”(2019QZKK0306)
第一作者:常琪琪(1995—),女,陕西佳县人,硕士研究生,主要从事土壤侵蚀研究。E-mail:201821051017@mail.bnu.edu.cn 通信作者:刘宝元(1958—),男,陕西佳县人,博士,教授,主要从事土壤侵蚀与水土保持研究。E-mail:Baoyuan@bnu.edu.cn

更新日期/Last Update: 2021-02-10