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| 白浪覆盖率模式中参量的研究 | |
| 引用本文： | 于定勇,刘华兴,李 晶,李翠琳,徐德伦.白浪覆盖率模式中参量的研究[J].海洋与湖沼,2009,40(1):8-11. |
| 作者姓名： | 于定勇 刘华兴 李 晶 李翠琳 徐德伦 |
| 作者单位： | 1. 中国海洋大学工程学院青岛,266100 2. DHI-NTU Water & Environment Research Center, School of Civil and Environmental Engineering, Nanyang Technological University,639798,Singapore 3. 中国海洋大学海洋环境学院,青岛,266100 |
| 基金项目： | 国家自然科学基金，国家自然科学基金重大项目 |
| 摘 要： | 在波面位移为正态过程的假定下,推导出一种以平均周期和风速为参量的白浪覆盖率公式W=1-Φ5.11094-T/U10]0.7576].依据摩擦风速和U10的表达式,进一步推导出白浪覆盖率依赖于摩擦风速的形式W=1-Φ0.5227-T/U]0.7576]].考虑到在实际应用中,经常需要用波龄描述波浪的状态,将白浪覆盖率表示成一种形式简单的波龄的函数W=1-Φ(3.6496ξ0.7576),与Monahan等的海上测量数据符合良好. |
| 关 键 词： | 白浪覆盖率 风浪破碎概率 摩擦风速 波龄 |
| 收稿时间： | 2007/10/5 0:00:00 |
| 修稿时间： | 2008/5/14 0:00:00 |
THE PARAMETERS IN WHITECAP COVERAGE MODEL |
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| YU Ding-Yong,LIU Hua-Xing,LI Jing,LI Cui-Lin and XU De-Lun.THE PARAMETERS IN WHITECAP COVERAGE MODEL[J].Oceanologia Et Limnologia Sinica,2009,40(1):8-11. | |
| Authors: | YU Ding-Yong LIU Hua-Xing LI Jing LI Cui-Lin and XU De-Lun |
| Institution: | 1.College of Engineering;Ocean University of China;Qingdao;266100;2.DHI-NTU Water & Environment Research Center;School of Civil and Environmental Engineering;Nanyang Technological University;639798;Singapore;3.College of Physical Oceanography;266100 |
| Abstract: | A simple formula is analytically derived based on a Gaussian wave field,which is used to estimate the spatial fraction of breaking sea surface at an instant time,i.e.,whitecap coverage W.The resulting whitecap coverage is related to wind speed and wave average period.According to the relation between friction speed U and U10,this derived formula is further expressed with U.As a wave age is often used to describe the wave state in practice,whitecap coverage is ex-pressed as a simple function of the age.The r... |
| Keywords: | Whitecap coverage Wave breaking probability Friction speed Wave age |
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