| 涌浪对风浪能量影响的实验研究 |
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| 引用本文： | 黄必桂,郑桂珍,丛培秀.涌浪对风浪能量影响的实验研究[J].中国海洋大学学报(自然科学版),2009,39(3). |
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| 作者姓名： | 黄必桂 郑桂珍 丛培秀 |
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| 作者单位： | 中国海洋大学物理海洋实验室,山东,青岛,266100 |
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| 基金项目： | 国家自然科学基金，国家自然科学基金重点项目 |
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| 摘 要： | 在实验室风浪水槽中进行纯风浪和混合浪波面位移观测,研究波长较长的规则波对风浪能量的影响.本文用混合浪和纯风浪中的风浪显著波的零阶谱矩之比代表混合浪中的风浪与纯风浪能量之比,并以此表征涌浪对风浪能量的影响.研究了该能量比随涌浪波陡S、风区x、波龄倒数u/C、涌浪频率与纯风浪谱峰频率之比fs/fwp的变化规律.结果表明,涌浪对风浪能量的抑制作用随涌浪波陡的增加、波龄倒数的增大及涌浪频率与纯风浪谱峰频率之比的增大而增强.发现该能量比依赖于无因次量R=(1+80(πS)2)1.9(fs/fwp)0.9(u/C)0.27,并拟合得到2者的经验关系.此外,本文实验还发现,在某些情况下,涌浪的存在使风浪能量增加.
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| 关 键 词： | 风浪 波-波相互作用 风区 零阶谱矩 |
Laboratory Research on the Influence of Swell on Wind Wave Energy |
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| HUANG Bi-Gui,ZHENG Gui-Zhen,CONG Pei-Xiu.Laboratory Research on the Influence of Swell on Wind Wave Energy[J].Periodical of Ocean University of China,2009,39(3). |
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| Authors: | HUANG Bi-Gui ZHENG Gui-Zhen CONG Pei-Xiu |
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| Institution: | Physical Oceanography Laboratory;Ocean University of China;Qingdao 266100;China |
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| Abstract: | Laboratory experiments were conducted in a wind-wave flume during which the surface elevation of wind waves with and without mechanically-made long waves were measured.The 0th-order spectral moments of the dominant wind waves,either in the mixed waves or in the pure wind waves,were calculated,and the ratio of the two was employed to characterize the change in wind wave energy caused by these swell.The ratio of wind wave energy with and without swell varies with the swell steepness(S),fetch(x),inverse wave a... |
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| Keywords: | wind wave wave-wave interaction fetch 0-th order spectral moment |
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