dc.contributor.author | Νάρης, Νικόλαος![]() |
el |
dc.contributor.author | Naris, Nikolaos![]() |
en |
dc.date.accessioned | 2022-02-01T11:41:05Z | |
dc.date.available | 2022-02-01T11:41:05Z | |
dc.identifier.uri | https://dspace.lib.ntua.gr/xmlui/handle/123456789/54505 | |
dc.identifier.uri | http://dx.doi.org/10.26240/heal.ntua.22203 | |
dc.rights | Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ελλάδα | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/gr/ | * |
dc.subject | Turbulence | en |
dc.subject | River | en |
dc.subject | Bridge | en |
dc.subject | Shape | en |
dc.subject | Canal | en |
dc.subject | Τύρβη | el |
dc.subject | Γέφυρα | el |
dc.subject | Διώρυγα | el |
dc.subject | Ποτάμι | el |
dc.title | Πειραματική διερεύνηση του σχήματος μεσόβαθρου στα χαρακτηριστικά της τυρβώδους ροής σε ορθογωνική διώρυγα | el |
dc.title | Πειραματική διερεύνησ της επίδρασης του σχήματος μεσόβαθρου στα χαρακτηριστικά της τυρβώδους ροής σε ορθογωνική διώρυγα | el |
heal.type | bachelorThesis | |
heal.classification | Hydraulics Mechanics | el |
heal.language | el | |
heal.access | free | |
heal.recordProvider | ntua | el |
heal.publicationDate | 2021-10-30 | |
heal.abstract | Nowadays, with the advancement of technology and engineering, it is possible to connect more and more land and water surfaces through bridges around the world. Due to the existence of bridge piers in water elements, especially in watercourses, it is possible that a number of problems can be caused mainly due to the change of the hydrodynamic characteristics of the flow. In the present work, five different cross-sections of intermediate shapes of different shapes are simulated and the measurements of the flow velocity were taken at four specific depths and at four specific positions, one upstream and three downstream, of the intermediate platform. The measurements were made with the ADV instrument (Acoustic Doppler Velocimeter) under hypocritical and constant flow conditions using a constant flow throughout the experiment. The distribution of the velocities, the intensity of the turbulence and the turbulent tendencies mainly downstream of the intermediate stages were studied as there arise any problems created by the change of these characteristics. The forces and coefficients of resistance were also studied. All diagrams are in dimensionless format for easy extraction and comparison of results. By presenting these diagrams, an attempt is made to draw conclusions about how the different barrier shapes hinder the flow and its characteristic | en |
heal.advisorName | Papanicolaou, Panayiotis | en |
heal.committeeMemberName | Efstratiadis, Papakwnstantis | en |
heal.academicPublisher | Εθνικό Μετσόβιο Πολυτεχνείο. Σχολή Πολιτικών Μηχανικών. Τομέας Υδατικών Πόρων και Περιβάλλοντος | el |
heal.academicPublisherID | ntua | |
heal.numberOfPages | 181 σ. | el |
heal.fullTextAvailability | false |
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