A highly nonlinear boussinesq wave model of improved dispersion characteristics

Chondros, MK; Memos, CD

dc.contributor.author	Chondros, MK	en
dc.contributor.author	Memos, CD	en
dc.date.accessioned	2014-03-01T02:53:32Z
dc.date.available	2014-03-01T02:53:32Z
dc.date.issued	2012	en
dc.identifier.issn	10986189	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/36395
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-84866130442&partnerID=40&md5=76b4137fe34167053252c0b84ed4ddfc	en
dc.subject	Boussinesq waves	en
dc.subject	Linear dispersion	en
dc.subject	Nonlinear models	en
dc.subject	Numerical modeling	en
dc.subject	Wave number	en
dc.title	A highly nonlinear boussinesq wave model of improved dispersion characteristics	en
heal.type	conferenceItem	en
heal.publicationDate	2012	en
heal.abstract	In the present study a modified Boussinesq-type model is derived to account for propagation of regular and irregular waves in two horizontal dimensions. An improvement of the linear and nonlinear characteristics of the model is obtained by optimizing the coefficients of each term in the momentum equation, expanding in this way its applicability in very deep waters and thus overcoming a dominant short-coming of most likewise models. The values of the coefficients were obtained by an inverse method in such a way to satisfy exactly the dispersion relation in terms of both first and second order analyse. The modified model was applied to simulate the propagation of regular and irregular waves in one horizontal dimension, in a variety of bottom profiles, such as constant depth, mild slope, submerged obstacles. The simulations are compared with experimental data and analytical results, indicating very good agreement in most cases. Copyright © 2012 by the International Society of Offshore and Polar Engineers (ISOPE).	en
heal.journalName	Proceedings of the International Offshore and Polar Engineering Conference	en
dc.identifier.spage	1179	en
dc.identifier.epage	1185	en