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Measurements and Si...
Measurements and Simulations of the Flow Distribution in a Down-Scaled Multiple Outlet Spillway with Complex Channel
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- Hedberg, P. A. Mikael (author)
- Luleå tekniska universitet,Strömningslära och experimentell mekanik
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- Hellström, J. Gunnar I. (author)
- Luleå tekniska universitet,Strömningslära och experimentell mekanik
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- Andersson, Anders G. (author)
- Luleå tekniska universitet,Strömningslära och experimentell mekanik
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- Andreasson, Patrik (author)
- Vattenfall, Research & Development Hydraulic Laboratory, Älvkarleby, 814 26, Sweden; Wildlife, Fish and Environmental Studies, Swedish University of Agricultural Sciences, Umeå, 901 83, Sweden
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- Andersson, Robin L. (author)
- Luleå tekniska universitet,Strömningslära och experimentell mekanik
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(creator_code:org_t)
- Multidisciplinary Digital Publishing Institute (MDPI), 2024
- 2024
- English.
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In: Water. - : Multidisciplinary Digital Publishing Institute (MDPI). - 2073-4441. ; 16:6
- Related links:
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https://ltu.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.3...
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Abstract
Subject headings
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- Measurements of mass flow through a three-outlet spillway modeled after a scaled-down spillway were conducted. The inlet and channel leading up to the outlets were placed to lead the water toward the outlet at an angle. With this, measurements of the water level at three locations were recorded by magnetostrictive sensors. The volumetric flow rates for each individual outlet were recorded separately to study the differences between them. Additionally, Acoustic Doppler Velocimetry was used to measure water velocities close to the outlets. The conditions changed were the inlet volume flow rate and the flow distribution was measured at 90, 100, 110, and 200 L per second. Differences between the outlets were mostly within the error margin of the instruments used in the experiments with larger differences shown for the 200 L test. The results produced together with a CAD model of the setup can be used for verification of CFD methods. A simulation with the k-epsilon turbulence model is included and compared to earlier experiments and the new experimental results. Larger differences are seen in the new experiments. Differing inlet conditions are assumed as the principal cause for the differences seen.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Strömningsmekanik och akustik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Fluid Mechanics and Acoustics (hsv//eng)
Keyword
- CFD
- experiment
- open channel
- spillway
- surface flow
- Strömningslära
- Fluid Mechanics
Publication and Content Type
- ref (subject category)
- art (subject category)
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