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Article

Performance Analysis for Road-Bioretention with Three Types of Curb Inlet Using Numerical Model

by 1,2, 3, 1,2, 1,2,*, 1,2 and 1,2
1
State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China
2
College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China
3
Department of Civil and Environmental Engineering, Auburn University, Auburn, AL 36849-5337, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Francesco De Paola
Water 2021, 13(12), 1643; https://doi.org/10.3390/w13121643
Received: 20 April 2021 / Revised: 31 May 2021 / Accepted: 7 June 2021 / Published: 11 June 2021
The FullSWOF-ZG (Full Shallow Water Overland Flow with infiltration determined by Zones and Grate-inlet submodules) program was used to simulate the road-bioretention (RB) stripe and evaluate the performance of the RB stripe with three types of curb inlet. The program was revised from the open-source FullSWOF-2D program and the validation results indicated FullSWOF-ZG predicts the RB stripe performance accurately. The model cases of 27 RB with different longitude slopes (S0), cross slopes (Sx), and curb inlet lengths (Lci) for the undepressed, composite depressed, and local depressed curb inlets were established in this study. Therefore, 81 cases in total were simulated to explore the curb inlet type and design parameter’s influence on the RB stripe performance. Overall, it was found that the bioretention control efficiency will increase with the S0 decrease, Sx increase, and Lci increase. The composite depressed curb inlet was the most efficient to intercept the road runoff into the bioretention strip, the next best is the local depressed curb inlet, and the undepressed curb inlet was the least efficient. The curb inlet and grate inlet combination in composite depressed curb inlet cases were able to deal with all the road surface runoff for the small longitudinal slope (S0 = 0.1% and 0.3%) to relieve the road local flood inundation. View Full-Text
Keywords: road-bioretention; curb inlet; FullSWOF-ZG; two-dimensional overland flow simulation; urban flood relief road-bioretention; curb inlet; FullSWOF-ZG; two-dimensional overland flow simulation; urban flood relief
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MDPI and ACS Style

Li, X.; Fang, X.; Wang, C.; Chen, G.; Zheng, S.; Yu, Y. Performance Analysis for Road-Bioretention with Three Types of Curb Inlet Using Numerical Model. Water 2021, 13, 1643. https://doi.org/10.3390/w13121643

AMA Style

Li X, Fang X, Wang C, Chen G, Zheng S, Yu Y. Performance Analysis for Road-Bioretention with Three Types of Curb Inlet Using Numerical Model. Water. 2021; 13(12):1643. https://doi.org/10.3390/w13121643

Chicago/Turabian Style

Li, Xiaoning, Xing Fang, Chuanhai Wang, Gang Chen, Shiwei Zheng, and Yue Yu. 2021. "Performance Analysis for Road-Bioretention with Three Types of Curb Inlet Using Numerical Model" Water 13, no. 12: 1643. https://doi.org/10.3390/w13121643

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