For reliable pressure-driven analysis (PDA) results, it is necessary to reasonably determine an objective head-outflow relationship (HOR) and the required head for each node. So far, no methodology has been proposed to objectively determine two factors based on data of real block. In this study, the HOR was defined using the water supply method, residential environment, and water consumption data within real blocks. The standard minimum residual pressure criteria were reviewed to quickly and rationally determine the required head for each node. To validate the proposed methodology, the HOR and required head application conditions were configured for different scenarios; the available flow rate of nodes and the water supply capacity of the entire block were evaluated based on PDA results. Through the results for each scenario, the HOR definition method was able to provide a reasonable result reflecting the actual block’s conditions, unlike the conventional orifice-type HOR, and the standard minimum residual pressure criteria as the required head was evaluated to be more efficient than the conventional time-consuming method. The HOR uncertainty and the lack of rationality in the selection of the required heads affected the reliability of PDA results; these problems can be solved using the proposed methodology.

中文翻译：

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考虑配水网实际供水特性的实用压力驱动水力分析方法研究

为了获得可靠的压力驱动分析（PDA）结果，必须合理确定客观的压头流出关系（HOR）和每个节点所需的压头。迄今为止，还没有提出基于实际块数据客观地确定两个因素的方法。在本研究中，使用供水方法，居住环境和实际区块内的用水量数据定义了HOR。审查了标准最小残余压力标准，以快速合理地确定每个节点所需的水头。为了验证所提出的方法，针对不同情况配置了HOR和所需的头部应用条件；根据PDA结果评估节点的可用流量和整个区块的供水能力。通过每种情况的结果，与传统的孔板式HOR不同，HOR定义方法能够提供反映实际块状条件的合理结果，并且评估了所需最小扬程的标准最小残留压力标准比常规费时方法更为有效。HOR的不确定性和所需头的选择缺乏合理性影响了PDA结果的可靠性；使用建议的方法可以解决这些问题。HOR的不确定性和所需头的选择缺乏合理性影响了PDA结果的可靠性；使用建议的方法可以解决这些问题。HOR的不确定性和所需头的选择缺乏合理性影响了PDA结果的可靠性；使用建议的方法可以解决这些问题。