Studies of wave-induced stresses under swell-dominated low wind speed condition

Pan Wei; Zou Zhongshui; Song Jinbao; Huang Jian

doi:10.12284/hyxb2021165

Volume 43 Issue 10

Oct. 2021

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Pan Wei，Zou Zhongshui，Song Jinbao, et al. Studies of wave-induced stresses under swell-dominated low wind speed condition[J]. Haiyang Xuebao，2021, 43(10)：1–9 doi: 10.12284/hyxb2021165

Citation:

Pan Wei，Zou Zhongshui，Song Jinbao, et al. Studies of wave-induced stresses under swell-dominated low wind speed condition[J]. Haiyang Xuebao，2021, 43(10)：1–9 doi: 10.12284/hyxb2021165

Citation:

Pan Wei，Zou Zhongshui，Song Jinbao, et al. Studies of wave-induced stresses under swell-dominated low wind speed condition[J]. Haiyang Xuebao，2021, 43(10)：1–9 doi: 10.12284/hyxb2021165

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Studies of wave-induced stresses under swell-dominated low wind speed condition

doi: 10.12284/hyxb2021165

1.
Institute of Physical Oceanography, Zhejiang University, Zhoushan 316021, China
2.
Guangzhou Institute of Tropical and Marine Meteorology, China Meteorological Administration, Guangzhou 510640, China

Received Date: 2020-08-12
Rev Recd Date: 2021-01-18

Available Online: 2021-08-25

Publish Date: 2021-10-30

Abstract

Abstract

Data measured by ultrasonic anemometer moored at a fixed platform near Maoming City, Guangdong Province from February 15 to May 8, 2012 has been used to analyze turbulence within wave boundary layer. The results confirmed that under swell conditions, there are areas obviously affected by swell in the cospectrum and Ogive curves. Furthermore, the sign change of wave-induced Reynolds stress is related to wave age. This paper presents the statistical distribution of the sign reversal of the Reynolds stress caused by the waves in the along-wind and cross-wind directions with wave age. In addition, this paper extracts the wave-induced Reynolds stress τ_swell based on cospectrum method, and compares it with the wave-induced Reynolds stress τ_*swell calculated by traditional method. The results show that the value of τ_swell is 2−3 orders of magnitude larger than that of τ_*swell, which indicates that the traditional method significantly underestimates the wave-induced Reynolds stress, and the traditional method needs to be improved.
- swell,
- wave-induced reynolds stress,
- cospectra,
- Ogive curves

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References(37)

References

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