Aiming at the problem of equifinality for different parameters arising from the arrangement of pressure monitoring points in the existing water supply network,the uncertainty of node water demand was analyzed using the Monte Carlo random sampling method based on the normal distribution.This paper introduced the node pressure fluctua-tion coefficient to discusse the influence of node water demand on the overall water supply network.The node water pres-sure sensitivity was used to solve the equifinality for different parameters problem in the layout of pressure monitoring points in the pipe network.By combining water pressure correlation and sensitivity,a model of the water supply pipe net-work in an urban area of East China was established.The bat algorithm was used to solve the model,and the layout scheme for the pressure monitoring point was obtained.Based on the initial value of the steady-state hydraulic model's node water demand,random sampling was conducted.The sampled value was then used for simulation,repeated 20,000 times,and the results were analyzed to find the best strategy and resolve the equifinality for different parameter prob-lems,which provides a new idea for determining the optimal positioning of pressure monitoring points in a water supply pipe network.
关键词
不确定性分析/压力监测点/异参同效/节点需水量/蒙特卡罗随机抽样法/灵敏性分析
Key words
uncertainty analysis/pressure monitoring points/equifinality for different parameters/nodal water de-mand/Monte Carlo random sampling method/sensitivity analysis
维普
万方数据