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http://dx.doi.org/10.3741/JKWRA.2009.42.12.1125

Effects of evanescent modes on three-dimensional depression of seabed  

Jung, Tae-Hwa (Dept. of Civil Engineering, Hanbat National University)
Kim, Hyung-Joon (Dept. of Civil and Environmental Engineering, Hanyang University)
Cho, Yong-Sik (Dept. of Civil and Environmental Engineering, Hanyang University)
Publication Information
Journal of Korea Water Resources Association / v.42, no.12, 2009 , pp. 1125-1133 More about this Journal
Abstract
Evanescent modes which are the other solutions of the Laplace equation for the linear dispersion equation may affect the wave transformation especially when a water depth varies abruptly. In this study, the effects of evanescent modes for a three-dimensional depression of seabed are investigated by using the eigenfunction expansion method. A convergence test is first carried out by changing numbers of domains and evanescent modes. The wave transformation for various depressions of seabed is then calculated under condition that the solution of the eigenfunction expansion method is converged.
Keywords
eigenfunction expansion method; wave transformation; evanescent mode; depression of seabed;
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Times Cited By KSCI : 2  (Citation Analysis)
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