摘要
介绍了如何确定单管段故障状况下供水管网满足用户的供水比例,根据两种管网水力分析模型:需水量驱动分析(DDA)模型和考虑管网节点压力与实际出流量关系的压力驱动分析(PDA)模型,并引入管段重要性的概念,提出编制管段重要性计算程序的步骤。通过案例分析两种模型,结果表明在管网压力不足情况下,采用PDA模型计算管段重要性值更具合理性。
It is of great importance to determine supply proportion under a pipe failure event for the operation and administration of water distribution systems. According to the definition of link importance （LI）, a method of computer programming is proposed based on two different distribution network hydraulic analysis models： Demand-driven analysis （DDA）model and Pressure-driven aalysis （PDA） model in this paper, while the latter combines the relationship between nodal pressure and outflow. A network example is used for two models to analysis, the results show that the LI values from PDA model is more reasonable in situation when the network pressure is insufficient.
出处
《给水排水》
CSCD
北大核心
2013年第3期154-157,共4页
Water & Wastewater Engineering
基金
国家水体污染控制与治理科技重大专项(2012ZX07403-001)
