Water Science and Engineering 2008, 1(2) 59-65  DOI:   10.3882/j.issn.1674-2370.2008.02.006   ISSN: 1674-2370 CN: 32-1785/TV

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flood discharge atomization
scale effect
physical model test
Wujiangdu Hydropower Station
Zhou Hui
Wu Shiqiang
Chen Huiling
Zhou Jie
Wu Xiufeng
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Similarity criterion of flood discharge atomization

Zhou Hui*1, 2, Wu Shiqiang1, 2, Chen Huiling2, Zhou Jie1, 2, Wu Xiufeng1, 2

1. State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute, Nanjing 210029, P. R. China
2. Hydraulic Engineering Department, Nanjing Hydraulic Research Institute, Nanjing 210029, P. R. China


By combining the results of prototype observation of flood discharge atomization at the Wujiangdu Hydropower Station, and by adopting the serial model test method, the model scale effect was examined, the influences of the Reynolds and Weber numbers of water flow on the rain intensity of flood discharge atomization were analyzed and a rain intensity conversion relation was established. It is demonstrated that the level of atomization follows the geometric similarity relations and it is possible to ignore the influence of the surface tension of the flow when the Weber number is greater than 500. Despite limitations such as incomplete data sets, it is undoubtedly helpful to study the scale effect of atomization flow, and it is beneficial to identify the rules of the model test results in order to extrapolate to prototype prediction.

Keywords flood discharge atomization   scale effect   physical model test   Wujiangdu Hydropower Station  
Received 2008-01-18 Revised 2008-03-07 Online:  
DOI: 10.3882/j.issn.1674-2370.2008.02.006
Corresponding Authors: Zhou Hui
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