Observed spectrum in the South China Sea during storms

Latheef, M. A.; Abdullah, Mohd Nasir; Jupri, Mohd Faieez Mohd

doi:10.1007/s10236-019-01332-9

Cited by 4 publications

(1 citation statement)

References 10 publications

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“…Thus, a large number of filed typhoon data showed that typhoons were usually mixed waves with coexistence of wind waves and swells. Except for commonly single peak spectrum, most field spectrum were dual peak or multi peak [9][10][11][12][13]. The dual peak field spectrum was used to simulate the wave features of typhoon, which can accurately reflect the actual sea conditions and provide a reference for the prevention of ocean engineering.…”

Section: Introductionmentioning

confidence: 99%

A Computation Method for the Typhoon Waves Using the Field Wave Spectrum

et al. 2022

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Wave features and propagation characteristics during typhoons are the key factors to study the dynamic response of ocean engineering and coastal disaster prevention and mitigation under extreme climate. Based on the Longuet-Higgins theory, the method of the field spectrum during the typhoon was used to compute the typhoon waves. And the directional spectrum, the formulas of wave surface, the velocity of water particles, and the acceleration of water particles were investigated. The results showed that the interpolated field wave spectrum combined with the SWOP direction spectrum could accurately simulate the three-dimensional typhoon waves. The significant wave height and the average period of the simulated wave surface at fixed point were statistically evaluated by the upward zero-crossing method, and the relative errors were ± 5% and ± 15%, respectively. The typhoon wave surface computed by a dual peak spectrum had small periodic waves, and the velocity and acceleration of water particles differed considerably from the JONSWAP spectrum. Finally, a fastened slender cylinder was simulated under action of the typhoon waves, which proved the applicability of the computation method. This study aims at providing a basis for the simulation of the dynamic response of marine structures under the typhoon waves action.

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