Resumen
We studied resonance in the Venetian Port of Chania, a 14th century historic monument, which frequently exhibits large wave motions in its basin with flooding of its docks. We measured time histories of surface elevation and currents off the harbor for a period of two years and also measured wave elevations at one location inside the Port. Offshore, we recorded maximum Hs= 4.1m with Ts =9.2s. We employed a Boussinesq-type model COULWAVE to explore resonance and determined the resonant frequencies for the entire basin. We also examined the effect of a past proposed breakwater extension design on the resonant frequencies and respective modes. We conclude that the overtopping observed under storm conditions may not be the result of harbor resonance but the little protection of the existing breakwater sheltering the entrance.Referencias
Berkhoff, J. C. W. 1972. Computation of combined refraction-diffraction, Proc. 13th Coastal Eng. Conference, ASCE, 471-490.
Bouws, E., H. Gunther, W. Rosenthal and C. L. Vincent. 1985. Similarity of the wind wave spectrum in finite depth water. J. Geophys. Res., 90(C1), 975-985.
Î'riggs, M. J., D. Dykstra and T. Baldwin. 2004. Modeling of harbor resonance in Port of Long Beach, Proc. of International Conference on Civil Eng. in the Oceans (edited by M. J. Briggs and M. E. McCormick), Baltimore, Maryland, USA.
Chen, H.S. and J.R. Houston. 1987. Calculation of water oscillation in coastal harbors: HARBS and HARBD user's manual, Report CERC-87-2, U.S. Army Waterways Experiment Station, Vicksburg, MS.
Douyere, Y.M.J. 2003. Analysis of harbor oscillation with a Boussinesq model. MSc thesis, University of Hawaii.
M. Kazolea, A.I. Delis, I.K. Nikolos and C.E. Synolakis. 2012. An unstructured finite volume numerical scheme for extended Boussinesq-type equations, Coastal Engineering, 69, 42-66.
Kofoed-Hansen, H., D. R. Kerper, O. R. Sorensen and J. Kirkegaard. 2005. Simulation of long wave agitation in ports and harbours using a time-domain Boussinesq model. Proc. of fifth International Symposium on Ocean Wave Measurements and Analysis - WAVES, 3-7 July 2005, Madrid, Spain.
Lynett, P.J. 2002. A multi-layer approach to modeling generation, propagation, and integration of water waves, PhD thesis, Cornell University.
Lynett, P. J. and P. L.-F. Liu. 2004. A two-layer approach to wave modeling. Proc. R. Soc. Lond., 460, 2637-2669.
Nwogu, O .G. 1993. Alternative form of Boussinesq equations for nearshore wave propagation, J. Waterway, Port, Coastal and Ocean Eng., 119(6), 618-639.
Nwogu, O. G. 2000. Time domain simulation of long period oscillations in harbors. Coastal Engineering, 3643-3654. doi: 10.1061/40549(276)284.
Peregrine, D. H. 1967. Long waves on a beach, J. Fluid Mech., 27, pp. 815-827.
Synolakis, C.E., N. Kalligeris, S. Foteinis, and V. Voukouvalas. 2008. The Plight of the Beaches of Crete, Proceedings of the Solutions to Coastal Disasters Conference, Oahu, Hawaii, April 13 - 16.
Wei, G. W., J. T. Kirby, S. T. Grilli, and R. Subramanya. 1995. A fully nonlinear Boussinesq model for surface waves. Part 1. Highly nonlinear unsteady waves, J. Fluid Mech., 294, 71-92.