Water and Environmental Engineering, Department of Chemical Engineering, Lund University, P.O. Box 124, SE-221 00 Lund, Sweden.
Department of Chemical Engineering, Lund University, P.O. Box 124, SE-221 00 Lund, Sweden.
J Environ Manage. 2019 Jun 15;240:527-536. doi: 10.1016/j.jenvman.2019.03.037. Epub 2019 Apr 5.
This study presents a deterministic, lumped model to simulate mesoscale sustainable drainage systems (SuDS) based on a conceptualization of the stormwater control measures (SCMs) making up the system and their influence on the runoff process. The conceptualization mainly relies on parameters that are easily quantifiable based on the physical characteristics of the SCMs. Introducing a nonlinear reservoir model at the downstream end of the SuDS results in a fast model that can realistically describe the runoff process at low computational cost. Modelled hydrographs for the study area in Malmö, Sweden, matched data with regard to the overall shape of the hydrograph as well as the peak discharge and lag time. These output parameters are critical factors to be considered in the design of large systems consisting of mesoscale SuDS. The algebraic foundation of the developed model makes it suitable for large-scale applications (e.g., macroscale), where the simulation time is a decisive factor. In this respect, city-wide optimization studies for the most efficient location and implementation of SuDS are substantially accelerated due to fast and easy model setup. Moreover, the simplicity of the model facilitates more effective communication between all the actors engaged in the urban planning process, including political decision makers, urban planners, and urban water engineers.
本研究提出了一种确定性、集中式模型，用于模拟基于构成系统的雨水控制措施 (SCM) 及其对径流过程影响的概念化的中尺度可持续排水系统 (SuDS)。该概念化主要依赖于基于 SCM 物理特性易于量化的参数。在 SuDS 的下游末端引入非线性储层模型可得到一个快速模型，该模型可以以较低的计算成本逼真地描述径流过程。为瑞典马尔默的研究区域建立的模型水文图在整体形状、峰值流量和滞后时间方面与数据匹配。这些输出参数是由中尺度 SuDS 组成的大型系统设计中需要考虑的关键因素。所开发模型的代数基础使其适用于模拟时间是决定性因素的大规模应用（例如，宏观尺度）。在这方面，由于模型设置快速简便，全市范围内的最有效位置和实施 SuDS 的优化研究大大加快。此外，该模型的简单性促进了参与城市规划过程的所有利益相关者（包括政治决策者、城市规划师和城市水务工程师）之间更有效的沟通。
