| Numerical Study of Wave Diffraction Effect Introduced in the SWAN Model |
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| 引用本文： | 胡克林 丁平兴. Numerical Study of Wave Diffraction Effect Introduced in the SWAN Model[J]. 中国海洋工程, 2007, 21(3): 495-506 |
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| 作者姓名： | 胡克林 丁平兴 |
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| 作者单位： | State Key Laboratory of Estuarine and Coastal Research East China Normal University，State Key Laboratory of Estuarine and Coastal Research，East China Normal University，Shanghai 200062，China，Shanghai 200062，China |
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| 基金项目： | This study was supported by the National Key Basic Research Project of China （Grant No. 2002CB412403） and the Re.arch Project in Science and Technology Commission of Shanghai Municipality, China （Grant No. 04DZ12049）Acknowledgements---The authors would like to thank the University of Delaware for providing the experimental data. |
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| 摘 要： | New version of SWAN model includes the wave diffraction effect which is the main improvement compared with the previous versions.Experimental data collected in the wave basin of the University of Delaware were used to test its performance.Wave heights were compared in the four cases(with different wave energies and directional spreading spectra).The results agreed well with the measurements,especially for the broad directional spectra cases.The effect of wave diffraction was analyzed by switching on/off the corresponding term.By introducing the diffraction term,the distributions of wave height and wave direction were smoothed,especially obvious for the narrow spectrum cases.Compared with the calculations without diffraction,the model with diffraction effect gave better results.
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| 关 键 词： | 波浪 波衍射 SWAN波浪模型 波浪水池 |
| 修稿时间： | 2007-02-26 |
Numerical Study of Wave Diffraction Effect Introduced in the SWAN Model |
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| HU Ke-lin,DING Ping-xing. Numerical Study of Wave Diffraction Effect Introduced in the SWAN Model[J]. China Ocean Engineering, 2007, 21(3): 495-506 |
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| Authors: | HU Ke-lin DING Ping-xing |
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| Affiliation: | State Key Laboratory of Estuarine and Coastal Research, East China Normal University,Shanghai 200062, China |
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| Abstract: | New version of SWAN model includes the wave diffraction effect which is the main improvement compared with the previous versions.Experimental data collected in the wave basin of the University of Delaware were used to test its performance.Wave heights were compared in the four cases(with different wave energies and directional spreading spectra).The results agreed well with the measurements,especially for the broad directional spectra cases.The effect of wave diffraction was analyzed by switching on/off the corresponding term.By introducing the diffraction term,the distributions of wave height and wave direction were smoothed,especially obvious for the narrow spectrum cases.Compared with the calculations without diffraction,the model with diffraction effect gave better results. |
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| Keywords: | SWAN wave model wave diffraction wave basin test |
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