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Simulation and assessment of long-term stormwater basin performance under real-time control retrofits
Urban Water Journal ( IF 1.6 ) Pub Date : 2020-05-18 , DOI: 10.1080/1573062x.2020.1764062
Zoë K. Schmitt 1 , Clayton C. Hodges 1 , Randel L. Dymond 1
Affiliation  

The use of real-time control (RTC) as an adaptation technique for improving stormwater systems has been gaining attention in recent years for its ability to enhance water quality treatment and quantity management. An RTC retrofit of seven existing detention basins was simulated for a small (162 ha), an urbanized watershed in Blacksburg, VA. Two heuristic, reactive control algorithms were tested for their ability to improve hydraulic conditions at each facility and the watershed outlet through manipulation of an actuated valve. For 24-hour design storms, RTC only reduced peak flows at certain facilities for events with a return period of 2 years or less. For larger design storms, RTC maintained or increased peak flow rates. During a 15-year historic rainfall simulation, RTC retrofitting reduced the total duration of erosive flows for most facilities; however, the duration of high intensity flows increased, or remained unchanged. This result was also reflected at the watershed outlet.



中文翻译:

实时控制改造对长期流域洪水性能的模拟与评估

近年来,实时控制(RTC)作为一种改进雨水系统的适应技术,因其增强水质处理和水量管理的能力而受到关注。针对弗吉尼亚州布莱克斯堡的一个小型(162公顷)城市化流域,对7个现有滞留盆地的RTC改造进行了模拟。测试了两种启发式的无功控制算法,它们通过操纵阀门来改善每个设施和集水区出口的水力状况的能力。对于24小时设计风暴,RTC仅会降低某些设施的峰值流量,以应对2年或更短的恢复期。对于更大的设计风暴,RTC保持或增加了峰值流速。在15年的历史降雨模拟中,RTC的改造减少了大多数设施的侵蚀性流的总时间;但是,高强度流的持续时间增加了,或保持不变。分水岭出口也反映了这一结果。

更新日期:2020-05-18
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