Design and Calibration of An Artificial Rainfall Simulator

SU Weina; TIAN Yimei; GAO Bo; ZHAO Peng

doi:10.13961/j.cnki.stbctb.2015.06.020

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Design and Calibration of An Artificial Rainfall Simulator

- Design and Calibration of An Artificial Rainfall Simulator
- Bulletin of Soiland Water Conservation Vol. 35, Issue 6, Pages: 120-123(2015)
- 作者机构：
  
  天津大学环境科学与工程学院,天津,300072
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2015.06.020
  CLC：
- Published：2015
- 稿件说明：
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SU Weina, TIAN Yimei, GAO Bo, et al. Design and Calibration of An Artificial Rainfall Simulator[J]. Bulletin of Soiland Water Conservation, 2015, 35(6): 120-123.
DOI：

SU Weina, TIAN Yimei, GAO Bo, et al. Design and Calibration of An Artificial Rainfall Simulator[J]. Bulletin of Soiland Water Conservation, 2015, 35(6): 120-123. DOI： 10.13961/j.cnki.stbctb.2015.06.020.

摘要

[目的] 针对水环境领域中地表径流的水质研究所需的降雨特点

设计了一种人工模拟降雨装置。[方法] 该模拟降雨装置采用3个规格不同的喷嘴式喷头

利用不同喷头的启闭与组合实现不同雨强的模拟。[结果] 经率定

此装置降雨强度可达0.3~2.0 mm/min

在此范围内降雨均匀系数均在85%以上

雨滴中数直径的范围为1.09~2.25 mm

最大雨滴直径不超过6 mm

雨滴终点速度可达到2~2.9 mm/s。[结论] 该装置模拟降雨与天然降雨的相似程度较高

可用于模拟真实的降雨情况。

Abstract

[Objective] Designing an artificial rainfall simulator according to the rainfall characteristics required in surface-runoff water quality research in water environment field.[Methods] An artificial rainfall simulator was introduced

which has three specifications of nozzles in order to simulate different rainfall intensity by their open and close.[Results] By means of calibration

the rainfall intensity of this artificial rainfall simulator was 0.3~2.0 mm/min; and in that range of intensity

rainfall uniformity coefficients were all over 85%. The median diameter of raindrop was 1.09~2.25 mm; the maximum diameter was smaller than 6 mm; the raindrop terminal velocity was 2~2.9 mm/s.[Conclusion] The rainfall characteristics was similar to the natural rainfall. This device can be used to simulate the real rainfall.

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references

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