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Experiments and 3D simulations of flow structures in junctions and their influence on location of flowmeters

Abstract : Open-channel junctions are common occurrences in sewer networks and flow rate measurement often occurs near these singularities. Local flow structures are 3-dimensional, impact on the representativeness of the local flow measurements and thus lead to deviations in the flow rate estimation. The present study aims i) to measure and simulate the flow pattern in a junction flow, ii) to analyze the impact of the junction on the velocity distribution according to the distance from the junction and thus iii) to evaluate the typical error derived from the computation of the flow rate close to the junction.
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Emmanuel Mignot, H. Bonakdari, P. Knothe, G. Lipeme Kouyi, Anne Bessette, et al.. Experiments and 3D simulations of flow structures in junctions and their influence on location of flowmeters. Water Science and Technology, IWA Publishing, 2012, 66 (6), pp.1325-1332. ⟨10.2166/wst.2012.319⟩. ⟨hal-00780133⟩

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