| DOI: | 10.1002/2016GL070666
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| 论文题名: | Mechanism of drag coefficient saturation at strong wind speeds |
| 作者: | Takagaki N.; Komori S.; Suzuki N.; Iwano K.; Kurose R.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8642
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| EISSN: | 1944-8373
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| 出版年: | 2016
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| 卷: | 43, 期:18 | | 起始页码: | 9829
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| 结束页码: | 9835
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| 语种: | 英语
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| 英文关键词: | air-sea interaction
; tropical cyclone
; wind waves
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| Scopus关键词: | Drag
; Drag coefficient
; Speed
; Storms
; Water levels
; Air sea interactions
; Enhancement factor
; Strong winds
; Tropical cyclone
; Water-level fluctuation
; Wave parameters
; Wind wave
; Wind-wave tanks
; Wind
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| 英文摘要: | Previous studies have demonstrated the saturation of drag coefficients at strong wind speeds. But the mechanism behind this saturation has not yet been fully clarified. In this study, at normal and strong wind speeds, we use a wind-wave tank for investigating the peak enhancement factor of the wind-sea spectrum, which is an appropriate wave parameter for representing interfacial flatness. We measured the water-level fluctuation using wave gauges. At strong wind speeds, the result shows that the peak enhancement factor of the wind-sea spectrum decreases with decreasing inverse wave age and with increasing wind speed. This suggests that the distinctive wind-wave breaking occurs at strong wind speeds. It also suggests that this distinctive breaking of wind waves causes the saturation of drag coefficients at strong wind speeds. ©2016. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84992360098&doi=10.1002%2f2016GL070666&partnerID=40&md5=5ccd98ec100b056f54828dba1f65fa6b
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/9605
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| Appears in Collections: | 科学计划与规划
气候变化与战略
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作者单位: | Department of Mechanical Engineering, University of Hyogo, Himeji, Japan
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| Recommended Citation: | |
Takagaki N.,Komori S.,Suzuki N.,et al. Mechanism of drag coefficient saturation at strong wind speeds[J]. Geophysical Research Letters,2016-01-01,43(18).
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