Directional wave spectrum transformation in the presence of strong depth and current inhomogeneities by means of coupled-mode model

dc.contributor.author	Μπελιμπασάκης, Κωνσταντίνος Α.	el
dc.contributor.author	Αθανασούλης, Γεράσιμος Α.	el
dc.contributor.author	Γεροστάθης, Θεόδωρος	el
dc.date.accessioned	2015-06-02T20:01:28Z
dc.date.available	2015-06-02T20:01:28Z
dc.date.issued	2015-06-02
dc.identifier.uri	http://hdl.handle.net/11400/14897
dc.rights	Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/us/	*
dc.source	http://www.scopus.com/record/display.url?eid=2-s2.0-84902656210&origin=resultslist&sort=plf-f&src=s&sid=7F04C384A08FCCC9964A7BA0BE6ED47D.ZmAySxCHIBxxTXbnsoe5w%3a1470&sot=autdocs&sdt=autdocs&sl=17&s=AU-ID%286506377132%29&relpos=0&relpos=0&citeCnt=1&searchTerm=	en
dc.subject	Αριθμητικές μέθοδοι
dc.subject	ωκεάνειο ρεύματα
dc.subject	Μετατροπή της ενέργειας των κυμάτων
dc.subject	Παράκτια μορφοδυναμική
dc.subject	Φαινόμενο περίθλασης
dc.subject	Multigrid methods (Numerical analysis)
dc.subject	Ocean currents
dc.subject	Wave energy conversion
dc.subject	Coastal morphodynamics
dc.subject	Diffraction phenomenon
dc.title	Directional wave spectrum transformation in the presence of strong depth and current inhomogeneities by means of coupled-mode model	en
heal.type	journalArticle
heal.classification	Ναυτική τέχνη και επιστήμη
heal.classification	Ναυτική μηχανολογία
heal.classification	Naval art and science
heal.classification	Marine engineering
heal.classificationURI	N/A-Ναυτική τέχνη και επιστήμη
heal.classificationURI	N/A-Ναυτική μηχανολογία
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh85090357
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh85081157
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh86007818
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh85093884
heal.identifier.secondary	DOI: 10.1016/j.oceaneng.2014.05.007
heal.language	en
heal.access	campus
heal.recordProvider	Τεχνολογικό Εκπαιδευτικό Ίδρυμα Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Τμήμα Ναυπηγών Μηχανικών Τ.Ε.	el
heal.publicationDate	2014-09-01
heal.bibliographicCitation	Belibassakis, K.A., Athanassoulis, G.A. and Gerostathis, T.P. (2014) Directional wave spectrum transformation in the presence of strong depth and current inhomogeneities by means of coupled-mode model. Ocean Engineering. [Online] 87, pp.84-96. Available from: http://www.scopus.com [Accessed 02/06/2015]	en
heal.abstract	A variety of engineering applications, including interaction of waves with coastal fixed or floating structures, coastal morphodynamics and harbour maintenance, requires detailed information about nearshore and onshore wave conditions. Since information concerning sea states is usually available offshore, there is need for developing appropriate models transforming the offshore wave conditions to nearshore ones. In the present work, a fully dispersive coupled-mode model is exploited to implement an offshore to nearshore wave spectrum transformation, in the presence of depth and current inhomogeneities. This model is based on appropriate local-mode series expansions, containing the propagating and evanescent modes, plus an additional term enabling the satisfaction of the boundary condition on the sloping parts of the bottom. The wave spectrum transformation is achieved by defining and calculating a distributed transfer function, connecting incident wave components with wave conditions at each point in the domain. The model takes full account of reflection, refraction, and diffraction phenomena, due to strongly varying, 3D bottom topography and ambient currents, as well as dissipation of wave energy due to bottom friction and wave breaking. Numerical results are compared with results obtained by other methods and experimental data, demonstrating the usefulness and practical applicability of the present approach.	en
heal.publisher	Elsevier	en
heal.journalName	Ocean Engineering	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true