TY - DATA
T1 - Data to incorporate entrapped air pocket dynamics into SWMM (AirSWMMv2.0)
PY - 2024/07/08
AU - João Paulo Ferreira
AU - David Ferras
AU - Didia Covas
AU - Zoran  Kapelan
UR - 
DO - 10.4121/e0ab23e8-a19e-483a-b45a-8df9de4232bf.v1
KW - Air–water interface interaction
KW - Air pocket entrapment
KW - Flow visualization and imaging
KW - Intermittent water supply
KW - Water pipelines
KW - Stormwater management model (SWMM)
N2 - <p>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</p>
ER -