Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Air entrapment modelling during pipe filling based on SWMM
The paper proposes a novel methodology to locate and quantify entrapped air pockets created during pipe-filling events often found in intermittent water supply systems. Different filling conditions were tested in an experimental pipe with a high point. Measurements were taken and video recordings were carried out to assess air pocket volumes for different air release conditions at the downstream end of the pipe. The stochastic nature of air pocket creation resulted in varying air volumes. A new numerical model capable of simulating the air pocket creation, dragging and entrainment has been proposed. The new model, AirSWMM, was implemented as an extension of the Stormwater Management Model (SWMM) with stochasticity of air pocket formation reproduced by simulations with different air entrainment rates. The obtained numerical results show that the proposed model, even though based on a single-phase one-dimensional flow, can accurately locate and approximately quantify the entrapped air pocket volumes.
Air entrapment modelling during pipe filling based on SWMM
The paper proposes a novel methodology to locate and quantify entrapped air pockets created during pipe-filling events often found in intermittent water supply systems. Different filling conditions were tested in an experimental pipe with a high point. Measurements were taken and video recordings were carried out to assess air pocket volumes for different air release conditions at the downstream end of the pipe. The stochastic nature of air pocket creation resulted in varying air volumes. A new numerical model capable of simulating the air pocket creation, dragging and entrainment has been proposed. The new model, AirSWMM, was implemented as an extension of the Stormwater Management Model (SWMM) with stochasticity of air pocket formation reproduced by simulations with different air entrainment rates. The obtained numerical results show that the proposed model, even though based on a single-phase one-dimensional flow, can accurately locate and approximately quantify the entrapped air pocket volumes.
Air entrapment modelling during pipe filling based on SWMM
Ferreira, João Paulo (Autor:in) / Ferràs, David (Autor:in) / Covas, Dídia I. C. (Autor:in) / van der Werf, Job Augustijn (Autor:in) / Kapelan, Zoran (Autor:in)
Journal of Hydraulic Research ; 62 ; 39-57
02.01.2024
19 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Air entrapment modelling in water supply networks during pipe filling events
| Taylor & Francis Verlag | 2024
| British Library Conference Proceedings | 1997
Evaluating SWMM capabilities to simulate closed pipe transients
| Taylor & Francis Verlag | 2022
PC-SWMM Stormwater Modelling in the City Saskatoon
| British Library Conference Proceedings | 1995