Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.14365/5550
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dc.contributor.authorMikalsen, Lars Marius-
dc.contributor.authorThorsen, Kasper Haugaard-
dc.contributor.authorBor, Asli-
dc.contributor.authorLia, Leif-
dc.date.accessioned2024-10-25T15:17:43Z-
dc.date.available2024-10-25T15:17:43Z-
dc.date.issued2024-
dc.identifier.issn2073-4441-
dc.identifier.urihttps://doi.org/10.3390/w16172432-
dc.identifier.urihttps://hdl.handle.net/20.500.14365/5550-
dc.description.abstractThis study investigates skimming flow regimes, two-phase air-water flow conditions, and simple measures to improve energy dissipation in stepped spillways. Experiments were conducted using two different scale physical models, 1:50 and 1:17, within separate rectangular flumes to define scale effects. Flow patterns were analyzed using the Bubble Image Velocimetry (BIV) technique, which tracks air bubbles. The introduction of splitters resulted in a 7% increase in relative energy dissipation. Additionally, the length of inception was reduced to Li/ks = 10, thereby decreasing the potential for subsequent cavitation. Beyond the BIV experiments, two experiments were conducted on the large-scale model using Acoustic Doppler Velocimetry (ADV), with and without splitters, to examine the impact of splitters on the velocity profile above the crest. In the experiment with splitters, the vertical velocity vector (v) contributed to turbulence by changing direction, thereby reducing average velocities both in front of and behind the ogee crest. This led to a reduction in energy on the downstream side of the spillway. Although the small-scale model appears unsuitable for studying two-phase flow, the change in relative energy dissipation from the baseline to the splitter configuration was practically identical for both scale models, thereby supporting the findings of the large-scale model.en_US
dc.language.isoenen_US
dc.publisherMDPIen_US
dc.relation.ispartofWateren_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectstepped spillwaysen_US
dc.subjectenergy dissipationen_US
dc.subjectinception pointen_US
dc.subjectskimming flowen_US
dc.subjectair-entrainmenten_US
dc.subjectADVen_US
dc.subjectFlow Characteristicsen_US
dc.subjectNonaerated Flowen_US
dc.subjectSkimming Flowen_US
dc.subjectRegionen_US
dc.titleInvestigation of Improved Energy Dissipation in Stepped Spillways Applying Bubble Image Velocimetryen_US
dc.typeArticleen_US
dc.identifier.doi10.3390/w16172432-
dc.identifier.scopus2-s2.0-85203880447en_US
dc.departmentİzmir Ekonomi Üniversitesien_US
dc.authorscopusid59221556500-
dc.authorscopusid59221694100-
dc.authorscopusid57203956151-
dc.authorscopusid55307835200-
dc.identifier.volume16en_US
dc.identifier.issue17en_US
dc.identifier.wosWOS:001311734600001en_US
dc.institutionauthor-
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
item.grantfulltextnone-
item.openairetypeArticle-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextNo Fulltext-
item.languageiso639-1en-
item.cerifentitytypePublications-
Appears in Collections:Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
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