| GENERAL THEORY FOR APPARENT ENERGY DISTRIBUTION OF SEA WAVES |
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| 作者姓名： | 吴克俭 孙孚 |
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| 作者单位： | WU Ke-jian(Institute of Physical Oceanography，Ocean University of Qingdao，Qingdao 266003)SUN Fu(Laboratory of Physical Oceanography，Ocean University of Qingdao，Qingdao 266003) |
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| 摘 要： | lwrRODUcrIONSeawavesarerecognindasacrucialfaCtorinengineeringandoffshorestruCturede-signsandconstitutCanimPoftantpartintheoreticalstudiesandapplicati0ns.TocopewiththecomPlexityofseawaves,alinearrandomwaveshomogeneousandstationarythe-oryisintrodutalwhereintwomodeIsdescribetheoonnsurfaeedisplacement.Inthefirstone,thesurfaeedisplaerentchangingwithlocationandtheisexpnssedingeneralitalFouriertransform,wherethefrequencyspeCtrumE(co)andwavenumberspodrumEoocanbedefined.Theotherwavemodelisbasedo…
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| 收稿时间： | 17 January 1997 |
| 修稿时间： | 12 May 1997 |
General theory for apparent energy distribution of sea waves |
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| Wu Ke-jian,Sun Fu.GENERAL THEORY FOR APPARENT ENERGY DISTRIBUTION OF SEA WAVES[J].Chinese Journal of Oceanology and Limnology,1997,15(4):322-331. |
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| Authors: | Wu Ke-jian Sun Fu |
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| Institution: | (1) Institute of Physical Oceanography, Ocean University of Qingdao, 266003 Qingdao;(2) Laboratory of Physical Oceanography, Ocean University of Qingdao, 266003 Qingdao |
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| Abstract: | This paper presents a general theory for the apparent energy distribution of sea waves. Using the joint distribution of wave periods and heights proposed earlier by the second author, the authors define the generalized apparnt energy distribution and derive the analytical form of the so called generalized outer frequency spectrum or nth-order frequency spectrum. Some possible relationships between it and the Fourier frequency spectrum are discussed. It is shown that the widely used Bretschneider spectrum can be easily obtained from the above definition and that generalized outer frequency spectrum has equilibrium range with exponent -(n+3) whose upper limit is -3. |
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| Keywords: | generalized outer frequency spectrum inner frequency spectrum equilibrium range |
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