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http://dx.doi.org/10.3744/SNAK.2005.42.3.212

Generation of Real Sea Waves based on Spectral Method and Wave Direction Analysis  

Lee, Jin-Ho (Marine Research Institute Samsung Heavy Industry)
Choi, Jae-Woong (Marine Research Institute Samsung Heavy Industry)
Kang, Yun-Tae (Marine Research Institute Samsung Heavy Industry)
Ha, Mun-Keun (Marine Research Institute Samsung Heavy Industry)
Publication Information
Journal of the Society of Naval Architects of Korea / v.42, no.3, 2005 , pp. 212-219 More about this Journal
Abstract
Real sea waves in a towing wave basin have been generated using random periodic motion of the segmented wave makers and the wave reflections of sidewalls. Theoretically, the real sea waves can be described by the superposition of many random oblique waves. This paper introduces numerical real sea wave generation in a rectangular wave basin using spectral method that uses a superposition of orthogonal functions which have to satisfy the Laplace equation. Oblique regular waves, long crested irregular waves and real sea waves were simulated and met the requirement of sidewall wave reflection and wave absorption. MLM (Maximum Likelihood Method) and Spatial Fourier Transform were used in order to obtain propagated wave direction characteristics. The estimated results proved the usefulness of the method and the performances showed reasonable directional patterns comparing with generating patterns.
Keywords
Real sea waves; Spectral method; Orthogonal function; Oblique regular waves; Long crested irregular waves; MLM(Maximum Likelihood Method); Spatial Fourier Transform;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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