Data on testing AirSWMM(v2.0) in water supply networks during pipe filling events

Intermittent water supply systems are prone to air entrapments during the pipe-filling phase. This work aims to analyse and discuss the numerical results obtained by applying the recently developed AirSWMM model, an extension of SWMM incorporating air phase, to a laboratory network. Experimental data consisting of pressure-head at multiple locations and video recordings of air entrapments are collected in a single loop network with a high point, for different pipe-filling conditions, system layouts and node elevations. Experimental tests have shown that the air entrapment occurred not only at the high point but also throughout the pipe network, creating air pockets with elongated shapes and larger volumes than for single pipes. AirSWWM model with air-entrapment formation, growth and transport is tested inthe pipe network, and results are compared with measurements. AirSWWM model can correctly locate large air pockets but underestimates their volume.

间歇性供水系统在管道充水阶段极易出现空气截留现象。本研究旨在分析并探讨将新近开发的AirSWMM模型（AirSWMM）——一款集成气相模块的SWMM扩展模型——应用于实验室管网所得到的数值模拟结果。研究在带有高点的单环管网中开展实验，针对不同充水工况、管网布局及节点高程条件，采集了多测点的压力水头数据与空气截留现象的视频记录。实验结果表明，空气截留不仅发生在管网高点处，还会遍布整个管网，形成相较于单根管道而言形状更细长、体积更大的气囊。本研究将具备空气截留形成、生长与输运功能的AirSWMM模型应用于该管网进行测试，并将模拟结果与实测数据进行对比。结果显示，AirSWMM模型能够准确定位大型气囊的位置，但会低估其实际体积。