中文摘要：

为了应用管网模型技术对污水系统水力状况进行分析,对模型重要输入条件——节点流量的日变化模式进行了分析研究,从理论结合实践的角度出发,提出分析的详细步骤及方法,包括单一服务区监测节点的选择、流量监测序列奇异点的去除、时变化无因次系数频率分布的拟合及检验,并最终实现了节点流量日变化模式的不确定性表达.通过广州实例研究,获得了5种单一类型污染源节点的日排水变化模式,并通过与国内外同类型污染源排水规律对比,验证了实例获得分析结果的适用性.

英文摘要：

To apply the wastewater modeling techniques to hydraulic condition analysis in a sewage pipe network system,the diurnal patterns of nodal flow,as an important input condition,was analyzed in this paper. Combined with the practical experience and statistical theory,detailed analysis procedures and methods were provided,which included the selection of service area monitoring nodes,removal of singular point in monitoring flow series,the frequency distribution fitting and testing for dimensionless coefficients of flow variation and the uncertainty expression of diurnal variation patterns. With the Guangzhou case study,five types of diurnal patterns for single service node were proposed. Through contrast with the same types of research results in China and abroad,the suitability of analysis results had been verified.