Deposition regularity in a rainwater pipeline based on variable transport flux

作者：Liu, Cuiyun^*; Tan, Shuai; Zhang, Xiaohua; Yang, Yuting; Xu, Yanhua; Xu, Yonghai

来源：Journal of Environmental Management, 2018, 224: 29-36.

DOI：10.1016/j.jenvman.2018.07.025

• Rainwater pipeline
• Deposition
• Transport flux
• Variable flow
• Variable initial SS concentration
• Additive effect

Experiments of the deposition of suspended particles in a rainwater pipeline were combined with mathematical model fitting to explore deposition regularity under variable transport flux. The simulation results showed that four primary factors affected deposition regularity in a rainwater pipeline. In particular, the deposition and flushing processes alternately dominated when the flow and initial suspended solids (SS) concentration changed simultaneously. The migration of the easy deposition position (EDP, the position with the largest deposition velocity) displayed an obvious regularity, shifting from front to back along the pipe regularly at increasing flow, and from back to front when flow decreased.

• 出版日期2018-10-15
• 单位南京工业大学