Three-dimensional mathematical modeling of fish behaviour in water bodies

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dc.contributor.author Δηλές, Σταύρος el
dc.contributor.author Diles, Stavros en
dc.date.accessioned 2018-03-15T11:18:06Z
dc.date.available 2018-03-15T11:18:06Z
dc.date.issued 2018-03-15
dc.identifier.uri http://dspace.lib.ntua.gr/handle/123456789/46712
dc.identifier.uri http://dx.doi.org/10.26240/heal.ntua.7682
dc.description Εθνικό Μετσόβιο Πολυτεχνείο--Μεταπτυχιακή Εργασία. Διεπιστημονικό-Διατμηματικό Πρόγραμμα Μεταπτυχιακών Σπουδών (Δ.Π.Μ.Σ.) “Υπολογιστική Μηχανική” el
dc.rights Default License
dc.subject Fish behaviour en
dc.subject Ηydroelectric en
dc.subject ELAM method en
dc.subject Μodeling en
dc.subject Συμπεριφορά των ψαριών el
dc.subject μοντέλο el
dc.subject Ρευστομηχανική el
dc.subject οικολογικό el
dc.subject Μέθοδος ELAM en
dc.title Three-dimensional mathematical modeling of fish behaviour in water bodies en
heal.type masterThesis
heal.classification Υπολογιστική Μηχανική el
heal.language en
heal.access free
heal.recordProvider ntua el
heal.publicationDate 2017-11-06
heal.abstract Human intervention in rivers and its effect on fish populations made it necessary to further understand fish behavior in order to reduce the impact on their living. This effort has led to construction and continuous improvement of fish passes in dams and Hydroelectric Power Plants. The aim of the current work is to use the existing literature and extend the mathematical- computational model which simulates fish behavior in three-dimensional flow conditions. The model was created in the Laboratory of Applied Hydraulics in NTUA by Giannoulis and Pagonopoulos. The study of fish behaviour is based on the ELAM method, which consists of the Eulerian approach of the flow field using Computational Fluid Dynamics (CFD) software, the Lagrangian approach of fish movement and the approach of fish response to the direction of flow and the stimuli of spatial acceleration and pressure. The main types of fish behaviour that are distinguished are (1) B1 towards flow direction , (2) B2 towards increasing water velocity, (3) B3 against the flow, and (4) B4 towards acclimatized derth. The calibration of the model was based on the case study of TUM Hydro Shaft Power Plant at the Hydraulic Laboratory in Obernach, Germany. The Flow-3D hydrodynamic model was applied for the description of the flowfield. A sensitivity analysis was performed on the model threshold coefficients and fish length. en
heal.advisorName Στάμου, Αναστάσιος el
heal.committeeMemberName Μπουντουβής, Ανδρέας el
heal.committeeMemberName Ριζιώτης, Βασίλειος el
heal.committeeMemberName Στάμου, Αναστάσιος el
heal.academicPublisher Εθνικό Μετσόβιο Πολυτεχνείο. Σχολή Πολιτικών Μηχανικών el
heal.academicPublisherID ntua
heal.numberOfPages 54 σ. el
heal.fullTextAvailability true

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