| 风暴潮和天文潮条件下的底摩擦的研究 |
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| 引用本文： | 虞旭日,汪景庸.风暴潮和天文潮条件下的底摩擦的研究[J].中国海洋大学学报(自然科学版),1991(4). |
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| 作者姓名： | 虞旭日 汪景庸 |
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| 作者单位： | 青岛海洋大学物理海洋所
(虞旭日)，青岛海洋大学物理系(汪景庸) |
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| 摘 要： | 由海底摩擦与平均流速的平方成正比的公式,对底摩擦的性质(主要对拖曳系数C_0)进行讨论。研究在风暴潮和天文潮的条件下,海底摩擦与风速,风向和海深等因素的关系,得到有关奇异区的存在等结论,说明在整个海区内拖曳系数不为常数。
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| 关 键 词： | 拖曳系数 海底摩擦 奇异区 奇异值 均匀区 均匀值 |
THE STUDY OF OCEAN BOTTOM FRICTION:APPLYING TO STORM SURGES AND ASTRONOMICAL TIDES |
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| Yu Xuri.THE STUDY OF OCEAN BOTTOM FRICTION:APPLYING TO STORM SURGES AND ASTRONOMICAL TIDES[J].Periodical of Ocean University of China,1991(4). |
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| Authors: | Yu Xuri |
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| Institution: | Yu Xuri(Institute of Physical Oceanography)Wang Jingyong(Dept. of physics) |
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| Abstract: | The sea bottom stress is conventionally assumed to be directly proportional to the square of vertically averaged velocity,i.e.We also think that the drag coefficient is dep-dendent on typhoon wind field and the direction of its movement,the depth of the sea,the dimension of the sea region and the tidal period and so on.In this paper a three-dimensional numerical model is used to discuss the relation between the drag coefficient and the above-mentioned factors.From the calculation it can be obtained that the relation is valid,that drag coefficient is a constant in most part of thesea concerned ( which is called the Regular Area),and that there is a small area near the coastline where the drag coefficient is far greater than other area (which is called the Singular Area)We have also obtained a series of conclusions about the relation between drag coefficient and typhoon wind field and the direction of its movement,the sea depth and so on. |
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| Keywords: | Singular Value Even Area Even Value Drag Coefficient Sea Bottom Friction Singular Area |
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