APPLICABILITY STUDY OF QUASI-DETERMINISM THEORY OF LARGE WAVES NEAR ZHEJIANG COAST

Cai Li; Zhao Jianchun; Liang Bingxian; Sun Zhaochen

doi:10.19912/j.0254-0096.tynxb.2023-1349

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Acta Energiae Solaris Sinica ›› 2024, Vol. 45 ›› Issue (12) : 503-508. DOI: 10.19912/j.0254-0096.tynxb.2023-1349

APPLICABILITY STUDY OF QUASI-DETERMINISM THEORY OF LARGE WAVES NEAR ZHEJIANG COAST

Cai Li¹, Zhao Jianchun¹, Liang Bingxian², Sun Zhaochen²

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Abstract

Accurate characterization of the large wave shapes is vital for efficiency and load calculations of wave energy converters. Meanwhile, conditional probability-based quasi-determinism theory offers a way to access it. Using 3-day wave measurement data collected offshore of Wenling, Zhejiang Province during Typhoon Ampil's transit in 2018, the measured average shapes of large waves and corresponding quasi-determinism waves are calculated by a self-programmed code. Then,the applicability of quasi-determinism theory for accurately characterizing these large wave shapes is discussed. The results show that the overall accuracy of the calculation is good; the larger the spectral peakedness of the spectrum （the narrower the spectrum）, the higher accuracy of the quasi-determinism theory, and the correlation coefficient reaches -0.56; the correlation coefficient between wave steepness and quasi-determinism theory accuracy is 0.36; the Gaussianity of the sea state has no substantial relationship with quasi-determinism theory accuracy.

Key words

wave energy / quasi-determinism theory / average shape of large waves / spectral width / wave steepness / Gaussianity

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Cai Li, Zhao Jianchun, Liang Bingxian, Sun Zhaochen. APPLICABILITY STUDY OF QUASI-DETERMINISM THEORY OF LARGE WAVES NEAR ZHEJIANG COAST[J]. Acta Energiae Solaris Sinica. 2024, 45(12): 503-508 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1349

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