發(fā)布時間：2018-10-20 18:31

【摘要】：最大波高作為表征海浪強度和危險程度的重要指標(biāo),既是設(shè)計波浪推算的依據(jù),同時又對海洋預(yù)報有重要的作用�；谌鹄植嫉玫降淖畲蟛ǜ吖�,不能體現(xiàn)波陡和譜寬度等非線性因素的影響,由該公式得出的理論最大波高與實際觀測值有偏差。采用相位平均方法的海浪數(shù)值模型分析,可以根據(jù)海浪譜計算得到有效波高,卻無法給出最大波高。本文通過分析挪威北海定點十年的船測波面資料,得出波浪譜,進一步推算出波陡和譜寬度對最大波高的影響。首先提出一種實測波數(shù)的替代方式,然后分別研究波陡和譜寬度對最大波高的影響。研究發(fā)現(xiàn)隨著波陡和譜寬度的增加,Hmax/Hs逐漸減小,并擬合出最大波高與Cartwright譜寬度參數(shù)的公式,得到較好的擬合效果。
[Abstract]:The maximum wave height, as an important indicator of wave strength and dangerous degree, is not only the basis of designing wave prediction, but also plays an important role in ocean prediction. The maximum wave height formula based on Rayleigh distribution can not reflect the influence of nonlinear factors such as wave steepness and spectral width. The theoretical maximum wave height obtained from the formula deviates from the observed value. According to the wave spectrum, the effective wave height can be calculated, but the maximum wave height can not be obtained. In this paper, the wave spectrum is obtained by analyzing the wave surface data of Norway North Sea for ten years, and the influence of wave steepness and spectral width on the maximum wave height is further calculated. In this paper, an alternative method of wave number measurement is proposed, and then the effects of wave steepness and spectral width on the maximum wave height are studied respectively. It is found that the Hmax/Hs decreases with the increase of wave steepness and spectral width, and the formula of maximum wave height and Cartwright spectral width parameter is fitted, and a good fitting effect is obtained.
【作者單位】： 海岸災(zāi)害及防護教育部重點實驗室(河海大學(xué));河海大學(xué)港口海岸與近海工程學(xué)院;
【基金】：國家自然科學(xué)基金(51579091,41106001) 江蘇省“青藍工程”優(yōu)秀青年骨干教師項目資助
【分類號】：P731.22

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1 滕學(xué)春,吳秀杰;近海海域年最大波高計算方法的研究[J];黃渤海海洋;1991年02期

2 尉華,沈正;海浪日最大波高序列的一種標(biāo)度性質(zhì)[J];海洋湖沼通報;1994年04期

3 ;[J];;年期

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本文編號：2284028