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The Research on the Deposition Regularity of Suspended Particles in Storm Sewer

  • Cuiyun Liu
  • Shuai Tan
  • Xiaohua Zhang
  • Jinpeng Yu
  • Yanhua Xu
  • Yonghai Xu
Article

Abstract

The deposition process of suspended particles in storm sewer has been simulated to explore the depositional regularity of storm sewer under different conditions of pipelines and suspended particles. The maximum deposition position, maximum deposition rate, and average deposition velocity of suspended particles have been calculated according to the mathematical models. The results show that the different conditions have a great influence on the deposition process in the pipeline. The higher concentration, the larger fullness and particle size or the smaller flow velocity and pipe slope, the more serious the deposition in the front section of the pipeline. The mathematical models show that the five factors have different effects on the maximum deposition position, maximum deposition rate, and average deposition velocity in the pipeline. When the concentration, particle size, and fullness increase, the maximum deposition position of suspended particles is removed forward. When the concentration and flow velocity increases, the maximum deposition rate tends to decrease, while it rises with the increase of particle size. In the case of high concentration or large particle size, the average deposition velocity of the suspended particles is larger, and it rises first and then decreases when flow velocity increases. Under the test conditions, when the flow velocity is in the range of 0.3–0.35 m/s, the average deposition velocity reaches the maximum.

Keywords

Storm sewer Suspended particles Deposition position Deposition rate Deposition velocity 

Notes

Funding Information

This research was supported by the Natural Science Foundation of the Jiangsu Province in China (BK20150959), National College Students Innovation and Entrepreneurship Training Program (201710291051), and Yang Jinfeng plan of Yangzhou in Jiangsu Province (YZLYJFJH2016YB098).

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  • Cuiyun Liu
    • 1
    • 2
  • Shuai Tan
    • 1
  • Xiaohua Zhang
    • 1
  • Jinpeng Yu
    • 1
  • Yanhua Xu
    • 2
  • Yonghai Xu
    • 3
  1. 1.College of Urban ConstructionNanjing Tech UniversityNanjingChina
  2. 2.Jiangsu Key Laboratory of Industrial Water-Conservation and Emission ReductionNanjing Tech UniversityNanjingChina
  3. 3.Jiangsu Hanjian GroupYangzhouChina

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