School of Civil Engineering and Architecture, Taizhou University, Taizhou, Zhejiang 318000, China; School of Civil and Environmental Engineering, Ningbo University, Ningbo, Zhejiang 315200, China E-mail:
School of Civil and Environmental Engineering, Ningbo University, Ningbo, Zhejiang 315200, China; School of Civil and Environmental Engineering, University of Alberta, Edmonton, AB T6G 2W2, Canada.
Water Sci Technol. 2023 Dec;88(12):3168-3180. doi: 10.2166/wst.2023.402.
This study investigated the hydraulic characteristics of stormwater sumps and their design optimization for sediment retention using physical experiments. Particle image velocimetry was utilized to measure the flow field, and the use of internal structures was investigated for improving solids retention. Results indicate that these internal structures can significantly improve the sediment removal efficiency of suspended solids with an average size of 125 μm, resulting in an efficiency improvement of 20-30%. Additionally, a modified Péclet number was proposed to more accurately evaluate the sediment removal efficiency of stormwater sumps, and recommendations were provided for further improving and optimizing sump design. This study provides insights into the hydraulic characteristics of stormwater sumps and has important implications for optimizing and designing particle removal systems for various industrial and environmental applications.
本研究通过物理实验，探究了雨水调蓄池的水力特性及其用于泥沙截留的设计优化。采用粒子图像测速技术（Particle Image Velocimetry）测量流场，并研究了内部结构的应用，以提高固体截留效果。结果表明，这些内部结构可以显著提高平均粒径为 125μm 的悬浮固体的泥沙去除效率，效率提高了 20-30%。此外，提出了修正的 Peclet 数，以更准确地评估雨水调蓄池的泥沙去除效率，并为进一步改进和优化调蓄池设计提供了建议。本研究深入了解了雨水调蓄池的水力特性，对于优化和设计各种工业和环境应用中的颗粒去除系统具有重要意义。
