Flow patterns in shallow rectangular reservoirs with open channel inlet or pipe flow inlet at various depths: An experimental study
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| Wydane w: | International Journal of Sediment Research vol. 40, no. 2 (Apr 2025), p. 209 |
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| Kolejni autorzy: | , , , , |
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KeAi Publishing Communications Ltd
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| 024 | 7 | |a 10.1016/j.ijsrc.2025.01.004 |2 doi | |
| 035 | |a 3215468598 | ||
| 045 | 2 | |b d20250401 |b d20250430 | |
| 100 | 1 | |a Chagdali, El Mehdi |u National Laboratory for Hydraulics and Environment (LNHE), EDF R&D, Chatou 78400, France | |
| 245 | 1 | |a Flow patterns in shallow rectangular reservoirs with open channel inlet or pipe flow inlet at various depths: An experimental study | |
| 260 | |b KeAi Publishing Communications Ltd |c Apr 2025 | ||
| 513 | |a Journal Article | ||
| 520 | 3 | |a This study experimentally assesses the influence of varying the inlet boundary condition on the flow patterns in rectangular shallow reservoirs. Two types of inlet boundary conditions were compared: a free surface inlet channel, and a pressurized circular inlet jet positioned at three different elevations over the flow depth (centroid of the inlet jet situated at 25%, 50%, or 75% of the flow depth). The outlet boundary condition was a free surface channel in all cases. Twenty-two experiments were done with two distinct reservoir lengths (length-to-width ratios of 1.1 and 2.0) and three hydraulic boundary conditions (Froude numbers of 0.14, 0.16, and 0.21). Velocity fields were measured with Large-Scale Particle Image Velocimetry (LSPIV) at the surface, and with an Acoustic Doppler Velocity Profiler (ADVP) at several cross sections. The flow patterns are greatly influenced by the inlet boundary condition and the reservoir geometry, but to a lesser extent by the hydraulic boundary condition. For an inlet circular jet located near the reservoir bottom, an unstable flow type, changing over time in a chaotic manner, was observed regardless of the reservoir length and of the inlet flow rate. The same type of unstable flow pattern was observed for a relatively long reservoir and the lowest tested flow rate, irrespective of the vertical positioning of the inlet jet. In all other tested configurations, a steady reattached jet was found in the reservoir equipped with a pressurized inlet jet. In addition to providing new knowledge on flow patterns in shallow reservoirs with an inlet jet, the experimental data presented here will prove valuable for evaluating flow computational models. © 2025 International Research and Training Centre on Erosion and Sedimentation. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). | |
| 653 | |a Flow distribution | ||
| 653 | |a Pipe flow | ||
| 653 | |a Free surfaces | ||
| 653 | |a Boundary conditions | ||
| 653 | |a Flow velocity | ||
| 653 | |a Particle image velocimetry | ||
| 653 | |a Ratios | ||
| 653 | |a Flow rates | ||
| 653 | |a Inlet flow | ||
| 653 | |a Laboratories | ||
| 653 | |a Open channels | ||
| 653 | |a Velocity distribution | ||
| 653 | |a Vertical orientation | ||
| 653 | |a Flow pattern | ||
| 653 | |a Experiments | ||
| 653 | |a Velocity | ||
| 653 | |a Centroids | ||
| 653 | |a Basin geometry | ||
| 653 | |a Reservoirs | ||
| 653 | |a Froude number | ||
| 653 | |a Sedimentation & deposition | ||
| 653 | |a Reynolds number | ||
| 653 | |a Mathematical models | ||
| 653 | |a Hydraulics | ||
| 700 | 1 | |a Abderrezzak, Kamal El Kadi |u National Laboratory for Hydraulics and Environment (LNHE), EDF R&D, Chatou 78400, France | |
| 700 | 1 | |a Erpicum, Sébastien |u Research Group of Hydraulics in Environmental and Civil Engineering (HECE), University of Liege, Liege 4000, Belgium | |
| 700 | 1 | |a Goeury, Cédric |u National Laboratory for Hydraulics and Environment (LNHE), EDF R&D, Chatou 78400, France | |
| 700 | 1 | |a Secher, Matthieu |u Hydraulics Engineering Center (CIH), EDF Hydro, La Motte-Servolex 73290, France | |
| 700 | 1 | |a Dewals, Benjamin | |
| 773 | 0 | |t International Journal of Sediment Research |g vol. 40, no. 2 (Apr 2025), p. 209 | |
| 786 | 0 | |d ProQuest |t Agriculture Science Database | |
| 856 | 4 | 1 | |3 Citation/Abstract |u https://www.proquest.com/docview/3215468598/abstract/embedded/75I98GEZK8WCJMPQ?source=fedsrch |
| 856 | 4 | 0 | |3 Full Text |u https://www.proquest.com/docview/3215468598/fulltext/embedded/75I98GEZK8WCJMPQ?source=fedsrch |
| 856 | 4 | 0 | |3 Full Text - PDF |u https://www.proquest.com/docview/3215468598/fulltextPDF/embedded/75I98GEZK8WCJMPQ?source=fedsrch |