Enhanced ocean wave modeling by including effect of breaking under both deep- and shallow-water conditions
<p>Accurate description of the wind energy input into ocean waves is crucial to ocean wave modeling and a physics-based consideration on the effect of wave breaking is absolutely necessary to obtain such an accurate description. This study evaluates the performance of an improved formula recen...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2023-05-01
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| Series: | Geoscientific Model Development |
| Online Access: | https://gmd.copernicus.org/articles/16/2811/2023/gmd-16-2811-2023.pdf |
| _version_ | 1797820441100812288 |
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| author | Y. Xu X. Yu |
| author_facet | Y. Xu X. Yu |
| author_sort | Y. Xu |
| collection | DOAJ |
| description | <p>Accurate description of the wind energy input into ocean waves is crucial to
ocean wave modeling and a physics-based consideration on the effect of wave
breaking is absolutely necessary to obtain such an accurate description.
This study evaluates the performance of an improved formula recently
proposed by Xu and Yu (2020), who took into account not only the effect of
breaking but also the effect of airflow separation on the leeside of steep
wave crests in a reasonably consistent way. Numerical results are obtained
through coupling an enhanced atmospheric wave boundary layer model with the
ocean wave model WAVEWATCH III (v5.16). The coupled model has been extended
to be valid in both deep and shallow waters. Duration-limited waves under
controlled normal conditions and storm waves under practical hurricane
conditions are studied in detail to verify the improved model. Both the
representative wave parameters and the parameters characterizing the wave
spectrum are discussed. It is shown that the improved source-term package
for the wind energy input and the wave energy dissipation leads to more
accurate results under all conditions. It performs evidently better than
other standard source-term options of ST2, ST4 and ST6 embedded in WAVEWATCH
III. It is also demonstrated that the improvement is particularly important
for waves at their early development stage and waves in shallow waters.</p> |
| first_indexed | 2024-03-13T09:38:24Z |
| format | Article |
| id | doaj.art-6bb29569a92d4c5f82f3024f7f681d9c |
| institution | Directory Open Access Journal |
| issn | 1991-959X 1991-9603 |
| language | English |
| last_indexed | 2024-03-13T09:38:24Z |
| publishDate | 2023-05-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Geoscientific Model Development |
| spelling | doaj.art-6bb29569a92d4c5f82f3024f7f681d9c2023-05-25T06:18:53ZengCopernicus PublicationsGeoscientific Model Development1991-959X1991-96032023-05-01162811283110.5194/gmd-16-2811-2023Enhanced ocean wave modeling by including effect of breaking under both deep- and shallow-water conditionsY. Xu0X. Yu1Department of Hydraulic Engineering, Tsinghua University, Beijing, ChinaDepartment of Ocean Science and Engineering, Southern University of Science and Technology, Shenzhen, China<p>Accurate description of the wind energy input into ocean waves is crucial to ocean wave modeling and a physics-based consideration on the effect of wave breaking is absolutely necessary to obtain such an accurate description. This study evaluates the performance of an improved formula recently proposed by Xu and Yu (2020), who took into account not only the effect of breaking but also the effect of airflow separation on the leeside of steep wave crests in a reasonably consistent way. Numerical results are obtained through coupling an enhanced atmospheric wave boundary layer model with the ocean wave model WAVEWATCH III (v5.16). The coupled model has been extended to be valid in both deep and shallow waters. Duration-limited waves under controlled normal conditions and storm waves under practical hurricane conditions are studied in detail to verify the improved model. Both the representative wave parameters and the parameters characterizing the wave spectrum are discussed. It is shown that the improved source-term package for the wind energy input and the wave energy dissipation leads to more accurate results under all conditions. It performs evidently better than other standard source-term options of ST2, ST4 and ST6 embedded in WAVEWATCH III. It is also demonstrated that the improvement is particularly important for waves at their early development stage and waves in shallow waters.</p>https://gmd.copernicus.org/articles/16/2811/2023/gmd-16-2811-2023.pdf |
| spellingShingle | Y. Xu X. Yu Enhanced ocean wave modeling by including effect of breaking under both deep- and shallow-water conditions Geoscientific Model Development |
| title | Enhanced ocean wave modeling by including effect of breaking under both deep- and shallow-water conditions |
| title_full | Enhanced ocean wave modeling by including effect of breaking under both deep- and shallow-water conditions |
| title_fullStr | Enhanced ocean wave modeling by including effect of breaking under both deep- and shallow-water conditions |
| title_full_unstemmed | Enhanced ocean wave modeling by including effect of breaking under both deep- and shallow-water conditions |
| title_short | Enhanced ocean wave modeling by including effect of breaking under both deep- and shallow-water conditions |
| title_sort | enhanced ocean wave modeling by including effect of breaking under both deep and shallow water conditions |
| url | https://gmd.copernicus.org/articles/16/2811/2023/gmd-16-2811-2023.pdf |
| work_keys_str_mv | AT yxu enhancedoceanwavemodelingbyincludingeffectofbreakingunderbothdeepandshallowwaterconditions AT xyu enhancedoceanwavemodelingbyincludingeffectofbreakingunderbothdeepandshallowwaterconditions |