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Indexed by:期刊论文

Date of Publication:2011-12-01

Journal:OCEAN ENGINEERING

Included Journals:Scopus、SCIE、EI

Volume:38

Issue:17-18

Page Number:2151-2161

ISSN No.:0029-8018

Key Words:Harbor resonance; Oscillations; Boussinesq equations; Wave generation; Numerical experiments

Abstract:A numerical model, which can simulate wave generation and propagation is developed to simulate oscillations induced by seafloor movements inside a harbor of constant slope, and once verified and then validated through comparison with experimental results, the numerical results are used to examine the analytic solutions presented in Wang et al. (Wang, G., Dong, G., Perlin, M., Ma, X., Ma, Y., 2011. An analytic investigation of oscillations within a harbor of constant slope. Ocean Engineering 38, 479-486). Small-scale seafloor movement usually induces small longitudinal oscillations, but evident larger transverse oscillations. These transverse oscillations are sensitive to the location of the moveable seafloor. The numerical result of each transverse eigen frequency compares well with the theoretical solution; in addition the spatial structure of each mode is also well-captured by the theory. Furthermore, evident/larger longitudinal oscillations induced by large-scale seafloor movements are simulated, and the numerical resonant frequencies agree favorably with the analytical solutions. These longitudinal oscillations are sensitive to the horizontal location of the moveable seafloor. (C) 2011 Elsevier Ltd. All rights reserved.