{"?xml":{"@version":"1.0"},"edm:RDF":{"@xmlns:dc":"http://purl.org/dc/elements/1.1/","@xmlns:edm":"http://www.europeana.eu/schemas/edm/","@xmlns:wgs84_pos":"http://www.w3.org/2003/01/geo/wgs84_pos","@xmlns:foaf":"http://xmlns.com/foaf/0.1/","@xmlns:rdaGr2":"http://rdvocab.info/ElementsGr2","@xmlns:oai":"http://www.openarchives.org/OAI/2.0/","@xmlns:owl":"http://www.w3.org/2002/07/owl#","@xmlns:rdf":"http://www.w3.org/1999/02/22-rdf-syntax-ns#","@xmlns:ore":"http://www.openarchives.org/ore/terms/","@xmlns:skos":"http://www.w3.org/2004/02/skos/core#","@xmlns:dcterms":"http://purl.org/dc/terms/","edm:WebResource":[{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:doc-BS7MGFV2/fcd5b770-2a33-43d1-8289-04d9a02c331b/PDF","dcterms:extent":"487 KB"},{"@rdf:about":"http://www.dlib.si/stream/URN:NBN:SI:doc-BS7MGFV2/00eca0c5-0ece-4935-b460-0b353e2d75d4/TEXT","dcterms:extent":"0 KB"}],"edm:TimeSpan":{"@rdf:about":"1999-2025","edm:begin":{"@xml:lang":"en","#text":"1999"},"edm:end":{"@xml:lang":"en","#text":"2025"}},"edm:ProvidedCHO":{"@rdf:about":"URN:NBN:SI:doc-BS7MGFV2","dcterms:isPartOf":[{"@rdf:resource":"https://www.dlib.si/details/URN:NBN:SI:spr-WP8SPN4L"},{"@xml:lang":"sl","#text":"Acta hydrotechnica"}],"dcterms:issued":"2025","dc:creator":["Domínguez Alonso, José Manuel","Novak, Gorazd"],"dc:format":[{"@xml:lang":"sl","#text":"letnik:38"},{"@xml:lang":"sl","#text":"številka:68"},{"@xml:lang":"sl","#text":"str. 29-37"}],"dc:identifier":["ISSN:0352-3551","DOI:10.15292/acta.hydro.2025.03","COBISSID_HOST:246345219","URN:URN:NBN:SI:doc-BS7MGFV2"],"dc:language":"en","dc:publisher":{"@xml:lang":"sl","#text":"Fakulteta za gradbeništvo in geodezijo"},"dc:subject":[{"@xml:lang":"en","#text":"3-D model"},{"@xml:lang":"sl","#text":"3D-model"},{"@xml:lang":"en","#text":"bridge pier"},{"@xml:lang":"en","#text":"drag coefficient"},{"@xml:lang":"en","#text":"DualSPHysics"},{"@xml:lang":"sl","#text":"koeficient upora"},{"@xml:lang":"sl","#text":"mostni opornik"},{"@xml:lang":"en","#text":"SPH"},{"@xml:lang":"sl","#text":"SPH, DualSPHysics"}],"dcterms:temporal":{"@rdf:resource":"1999-2025"},"dc:title":{"@xml:lang":"sl","#text":"3D simulations of flow past a cylindrical bridge pier for determination of drag coefficient as a function of Froude number| 3D simulacije obtekanja valjastega mostnega opornika za določitev koeficienta upora v odvisnosti od Froudovega števila|"},"dc:description":[{"@xml:lang":"sl","#text":"Increasingly frequent floods demonstrate the vulnerability of bridges and their piers. Designing a pier involves determining its drag coefficient C_d. In the existing literature, C_d is given as a function of the Reynolds number Re, i.e. C_d=f(Re), while the present study also investigated C_d as a function of the Froude number Fr, i.e. C_d=f(Fr). The SPH method and the model DualSPHysics were used to simulate three-dimensional turbulent free-surface flows past a surface-piercing cylinder in a straight horizontal channel. Subcritical, critical, and supercritical flows with Fr<2 were examined. The model was calibrated for flows in a duct filled with water (i.e. flows without free water surface) and validated against open channel experiments from the literature. Finally, the model was used to simulate real-life high-discharge conditions. Determination of C_d=f(Fr) indicated that the constant value of C_d as defined in the Eurocode 1 standard is not necessarily optimal"},{"@xml:lang":"sl","#text":"Vse pogostejše poplave izpostavljajo ranljivost mostov in mostnih opornikov. Pri dimenzioniranju mostnih opornikov je treba upoštevati njihov koeficient upora C_d. V večini virov je ta podan v odvisnosti od Reynoldsovega števila, tj. C_d=f(Re), ta raziskava pa je obravnavala tudi C_d v odvisnosti od Froudovega števila. Z uporabo metode SPH in modela DualSPHysics so bile izvedene tridimenzionalne simulacije turbulentnega toka s prosto gladino, ki nastopa pri obtekanju valjastega mostnega opornika v ravnem horizontalnem kanalu. Širok razpon pretokov je zajel primere mirnega, kritičnega in deročega toka s Froudovimi števili Fr<2. Model je bil umerjen na primere toka v pokritih kanalih brez proste gladine in nato validiran z eksperimenti na odprtem kanalu iz literature. Nazadnje je bil uporabljen za simulacije realističnih visokovodnih dogodkov. Določitev C_d=f(Fr) je pokazala, da konstantna vrednost C_d, ki jo predpisuje standard Eurocode 1, ni nujno optimalna"}],"edm:type":"TEXT","dc:type":[{"@xml:lang":"sl","#text":"znanstveno časopisje"},{"@xml:lang":"en","#text":"journals"},{"@rdf:resource":"http://www.wikidata.org/entity/Q361785"}]},"ore:Aggregation":{"@rdf:about":"http://www.dlib.si/?URN=URN:NBN:SI:doc-BS7MGFV2","edm:aggregatedCHO":{"@rdf:resource":"URN:NBN:SI:doc-BS7MGFV2"},"edm:isShownBy":{"@rdf:resource":"http://www.dlib.si/stream/URN:NBN:SI:doc-BS7MGFV2/fcd5b770-2a33-43d1-8289-04d9a02c331b/PDF"},"edm:rights":{"@rdf:resource":"http://creativecommons.org/licenses/by-nc-sa/4.0/"},"edm:provider":"Slovenian National E-content Aggregator","edm:intermediateProvider":{"@xml:lang":"en","#text":"National and University Library of Slovenia"},"edm:dataProvider":{"@xml:lang":"sl","#text":"Univerza v Ljubljani, Fakulteta za gradbeništvo in geodezijo"},"edm:object":{"@rdf:resource":"http://www.dlib.si/streamdb/URN:NBN:SI:doc-BS7MGFV2/maxi/edm"},"edm:isShownAt":{"@rdf:resource":"http://www.dlib.si/details/URN:NBN:SI:doc-BS7MGFV2"}}}}