A coupled-mode technique for the prediction of wave-induced set-up and mean flow in variable bathymetry domains

Belibassakis, KA; Gerostathis, ThP; Athanassoulis, GA

dc.contributor.author	Belibassakis, KA	en
dc.contributor.author	Gerostathis, ThP	en
dc.contributor.author	Athanassoulis, GA	en
dc.date.accessioned	2014-03-01T02:51:00Z
dc.date.available	2014-03-01T02:51:00Z
dc.date.issued	2007	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/35292
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-37249048336&partnerID=40&md5=f7ba6d1b0043752a96b74f96592ff33e	en
dc.subject.other	Flow of fluids	en
dc.subject.other	Water waves	en
dc.subject.other	Wave effects	en
dc.subject.other	Wave propagation	en
dc.subject.other	Bottom boundary	en
dc.subject.other	Wave breaking	en
dc.subject.other	Wave induced currents	en
dc.subject.other	Wave velocity	en
dc.subject.other	Bathymetry	en
dc.title	A coupled-mode technique for the prediction of wave-induced set-up and mean flow in variable bathymetry domains	en
heal.type	conferenceItem	en
heal.publicationDate	2007	en
heal.abstract	In the present work, a complete, phase-resolving wave model is coupled with an iterative solver of the mean-flow equations in intermediate and shallow water depth, permitting an accurate calculation of wave set-up and wave-induced current in intermediate and shallow water environment with possibly steep bathymetric variations. The wave model is based on the consistent coupled-mode system of equations, developed by Athanassoulis & Belibassakis (1999) for the propagation of water waves in variable bathymetry regions. This model improves the predictions of the mild-slope equation, permitting the treatment of wave propagation in regions with steep bottom slope and/or large curvature. In addition, it supports the consistent calculation of wave velocity up to and including the bottom boundary. The above wave model has been further extended to include the effects of bottom friction and wave breaking, which are important factors for the calculation of radiation stresses on decreasing depth. The latter have been used as forcing terms to the mean flow equations in order to predict wave-induced set up and mean flow in open and closed domains. Numerical results obtained by the present model are presented and compared with predictions obtained by the mildslope approximation (Massel & Gourlay 2000), and experimental data (Gourlay 1996). Copyright ©2007 by ASME.	en
heal.journalName	Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE	en
dc.identifier.volume	4	en
dc.identifier.spage	589	en
dc.identifier.epage	596	en