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http://dx.doi.org/10.7837/kosomes.2022.28.1.161

Investigation on the Variation of Ocean Waves passing through Shallow Waters  

Seok, Woochan (Department of Naval Architecture and Marine System Engineering, Pukyong National University)
Won, Younsang (Industry-University Cooperation Foundation of Pukyong National University)
Publication Information
Journal of the Korean Society of Marine Environment & Safety / v.28, no.1, 2022 , pp. 161-167 More about this Journal
Abstract
Ocean waves passing through the underwater bar at a shallow depth experience a shoaling effect caused by decreasing water depth, a nonlinear interaction therein owing to steepening wave slope, and a wave dispersion effect as the water depth increases again. Because this problem includes many complicated phenomena, it is used as a good example of validating a theoretical development or a CFD method for ocean wave applications. Validation is performed mainly for regular waves by comparing the wave elevation patterns in the time domain with the experimental results. In this study, the spectral evolution of wave spectrum is investigated in the frequency domain when a CFD method such as OpenFOAM is applied for this problem. In particular, the effects of initial phase conditions as well as the nonlinear interaction among harmonic waves are studied.
Keywords
Underwater Bar; Nonlinear Interaction; Boussinesq Equation; Spectrum; OpenFOAM;
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