American Society of Civil Engineers


Numerical Study of Solitary Wave Propagation in Curved Channels


by Masatoshi Yuhi, (Dept. Civil Eng., Kanazawa Univ., Kanazawa, 920-8667, Japan E-mail: yuhi@t.kanazawa-u.ac.jp), Hajime Ishida, (Dept. Civil Eng., Kanazawa Univ., Kanazawa, 920-8667, Japan), and Hajime Mase, (Disaster Prevention Research Institute, Kyoto Univ., Uji, 611-0011, Japan)
Section: Part I Characteristics of Coastal Waves and Currents, pp. 519-532, (doi:  http://dx.doi.org/10.1061/40549(276)41)

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Document type: Conference Proceeding Paper
Part of: Coastal Engineering 2000
Abstract: A numerical model is developed for the extended Boussinesq equations expressed in the generalized curvilinear coordinate system. The model is applied to the study of solitary wave propagation through circular channels. The general features of solitary wave propagation are described and the effects of channel width and incident wave height on the transmission and reflection properties are examined. It is shown that the wave transformation becomes significant in wide channels. The maximum crest height at the outer wall of channel is then investigated in detail. The maximum crest height can reach almost twice as large as the incident wave amplitude in wide channels. The numerical results indicate that the maximum crest height can be correlated fairy well with a single dimensionless parameter.


ASCE Subject Headings:
Solitary waves
Wave propagation
Numerical models
Channels
Boussinesq equations