Data from testing AirSWMM(v2.1) to a real-life network

This research provides a first assessment of the location of air pockets in a case study from the literature by using the developed AirSWMM. A pressure-driven analysis is implemented in the source code of AirSWMM(v2.0) to better simulate the nodal demand since this feature was not originally included in SWMM. Pressure-head results for different spatial discretisations are compared with collected field data to assess the best compromise between spatial discretisation and the results’ accuracy. The recommendations from international guidelines for the location of air release devices are compared to the predicted air pocket locations to assess if the numerical estimates are in agreement with the empirical evidence

本研究依托开发完成的AirSWMM工具，针对文献中的一则案例开展了气袋（air pocket）位置的首次评估。研究团队在AirSWMM(v2.0)的源代码中植入了压力驱动分析模块，以更精准地模拟节点需水量——该功能最初并未在SWMM中内置。将不同空间离散化方案下得到的压头结果与收集的现场实测数据进行对比，以此评估空间离散程度与结果精度间的最优折中方案。将国际指南中关于排气装置布设位置的建议，与预测得到的气袋位置进行比对，以验证数值估算结果是否与实证证据相符。