基于响应曲面法的供水管网节点不完全混合模型  

Incomplete Mixing Modelling of Water Supply Network Junctions Based on Response Surface Method

作　　者：郭文娟 李坤仪 高金良 齐世华[3] 于景洋[3] 田园 王伟超 GUO Wenjuan;LI Kunyi;GAO Jinliang;QI Shihua;YU Jingyang;TIAN Yuan;WANG Weichao(Capital Eco-Pro Group Co.,Ltd.,Beijing 100044,China;School of Environment,Harbin Institute of Technology,Harbin 150090,China;Heilongjiang Institute of Construction Technology,Harbin 150025,China;Harbin Corner Technology Co.,Ltd.,Harbin 150028,China)

机构地区：[1]北京首创生态环保集团股份有限公司,北京100044 [2]哈尔滨工业大学环境学院,哈尔滨150090 [3]黑龙江建筑职业技术学院,哈尔滨150025 [4]哈尔滨凯纳科技股份有限公司,哈尔滨150028

出　　处：《给水排水》2025年第2期169-175,共7页Water & Wastewater Engineering

基　　金：国家重点研发计划项目(2022YFC3203804);揭榜制科研项目(CE602022000203);黑龙江省重点研发计划项目(2022ZX01A06)。

摘　　要：由于供水管网中节点处溶质存在不完全混合现象,建立精确节点混合模型对于提高水质模拟准确性至关重要。通过CFD数值模拟,确定影响十字、双T和H节点处影响溶质混合程度关键因素。结果表明,入口和出口雷诺数比对3种节点混合程度都有显著影响,而对于双T节点而言,两三通间距更为关键。基于响应曲面法开发节点处溶质不完全混合模型,并将该模型嵌入EPANET软件中,实现对完全混合模型改进。通过现实管网试验验证改进EPANET软件必要性。Due to the incomplete mixing of solutes at junctions in water supply networks,accurate junction mixing modelling is essential to improve water quality simulation accuracy.In this study,Computational fluid dynamics(CFD)numerical simulation was used to determine the key factors affecting the degree of solute mixing at the cross,double-T and H junctions.The results show that the inlet and outlet Reynolds number ratios have a significant effect on the degree of mixing at all three types of junctions,while the two tee spacing is more critical for the double-T junctions.The incomplete solute mixing model at the junctions is developed based on the Response surface method(RSM),and the model is embedded in EPANET software to achieve the improvement of the complete mixing model.The necessity of improved EPANET software is verified by real water supply network tests.

关 键 词：供水管网 不完全混合 水质模型 CFD RSM 

分 类 号：TU991.33[建筑科学—市政工程]