American Society of Civil Engineers


Effect of a Curvilinear Coastline on Edge Waves


by Yolanda Ciriano, Ph.D., (Student, Departament de Física Aplicada. Modul B5. Campus Nord. Jordi Girona 1-3. 08034 Barcelona. Spain E-mail: yolanda@fa.upc.es), Albert Falqués, (Ass. Profesor, Departament de Física Aplicada. Modul B5. Campus Nord. ETSECCPB Universitat Politècnica de Catalunya. c. Jordi Girona 1-3 08034 Barcelona. Spain E-mail: falques@fa.upc.es), and Agustín Sanchez-Arcilla, (Professor, Maritime Engineering Laboratory, LIM-DEHMA, ETSECCPB, Universitat Politècnica de Catalunya. c. Jordi Girona 1-3. 08034 Barcelona. Spain E-mail: agustin.arcilla@upc.es)

pp. 273-282, (doi:  http://dx.doi.org/10.1061/40566(260)28)

     Access full text
     Purchase Subscription
     Permissions for Reuse  

Document type: Conference Proceeding Paper
Part of: Coastal Dynamics ’01
Abstract: The effects of changes in the orientation of the coastline on edge waves in case of a landward concave coast are investigated, assuming circular depth contours. Both by analytical and numerical methods it is shown that fully trapped edge waves do not exist for realistic bathymetric contours. However, quasi-trapped waves with the properties of edge waves but with a small energy leakage do exist below some critical cut-off wavelength which is 1.15R for the 0 mode and that can be approximated by πR/2(2n + 1) for the higher modes where R is the curvature radius. The curvature produces a small increase of wavelength for a given period which can reach, for instance, some 12%, 18% and 24% for the 0th, first and second modes, respectively.


ASCE Subject Headings:
Shoreline changes
Edge waves