摘要
从水力方程求解及节点流量-压力关系率定两个方面梳理了低压供水管网水力分析研究进展。研究发现,当前成果尚不足以解决实际工程问题,并针对节点流量-压力关系指出有如下3点需要解决:(1)不同建筑及管网节点流量-压力曲线中额定压力及最低压力的率定;(2)不同建筑及管网中VDD与PDD卫生器具比例的确定;(3)包含不同比例VDD及PDD类型卫生器具的节点流量-压力曲线的率定,以及简化率定方法研究。针对上述问题,提出应用蒙特卡洛模拟对低压供水时建筑用水进行数值仿真。
The paper summarized the research progress of hydraulic analysis of water distribution system （WDS） under pressure deficient condition in aspects of the solution of hydraulic equations and the calibration of relation between node flux and node pressure. It was concluded that current research was still incapable to solve practical engineering problems. Three problems concerning the relation between node flux and pressure needed to be solved ： （1） the calibration of rated pressure and minimum pressure in the curve of node flux and pressure in different buildings and WDSs ; （2） the proportion estimation of VDD and PDD sanitary equipments in different buildings and WDSs; and （3） the calibration of the curve of node flux and pressure with different proportions of VDD and PDD sanitary equipments, as well as the study of simplified method for calibration. In view of above problems, it was proposed to simulate the water usage of buildings in pressure deficient condition using Monte Carlo simulation for the calibration in different situations.
出处
《中国给水排水》
CAS
CSCD
北大核心
2017年第7期63-67,共5页
China Water & Wastewater
基金
国家自然科学基金资助项目(51608242)
云南省人才培养计划(14118943)
昆明理工大学学术科技创新基金资助项目(2015YB025)
关键词
低压供水
水力分析
压力驱动水力分析法
节点流量-压力曲线
low pressure water supply
hydraulic method
node flux and pressure curve analysis
pressure driven hydraulic analysis
