Print Email Facebook Twitter Air entrapment modelling in water supply networks during pipe filling events Title Air entrapment modelling in water supply networks during pipe filling events Author Ferreira, P. (TU Delft Education AE) Ferràs, David (IHE Delft Institute for Water Education) Covas, Dídia I.C. (Universidade de Lisboa) Kapelan, Z. (TU Delft Sanitary Engineering) Date 2024 Abstract 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 in the pipe network, and results are compared with measurements. AirSWWM model can correctly locate large air pockets but underestimates their volume. Subject Air pocket entrapmentintermittent water supplySWMMwater pipelines To reference this document use: http://resolver.tudelft.nl/uuid:1249c36f-cb4d-43b6-b673-aa30af72dc04 DOI https://doi.org/10.1080/1573062X.2024.2342785 ISSN 1573-062X Source Urban Water Journal Part of collection Institutional Repository Document type journal article Rights © 2024 P. Ferreira, David Ferràs, Dídia I.C. Covas, Z. Kapelan Files PDF Air_entrapment_modelling_ ... events.pdf 4.88 MB Close viewer /islandora/object/uuid:1249c36f-cb4d-43b6-b673-aa30af72dc04/datastream/OBJ/view