Impacts of a Wave Farm on Waves, Currents and Coastal Morphology in South West England
Impacts of a Wave Farm on Waves, Currents and Coastal Morphology in South West England
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波浪发电场对英格兰西南部波浪、海流和海岸形态的影响
DOI：
10.1007/s12237-013-9634-z
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发表时间：
2013
影响因子：
2.7
通讯作者：
Gonzalez-Santamaria R
中科院分区：
文献类型：
--
作者：
Gonzalez-Santamaria R
本研究调查了波浪农场对波浪、水流和海岸地貌的影响，该波浪农场位于英格兰西南部(The Wave Hub)。在这项研究中，我们使用一个集成的数值模拟系统，重点研究了由于波场的存在而引起的波浪和潮汐的相互作用及其对波浪辐射应力、底部剪应力的影响，从而对泥沙运动和波场附近海岸的影响。模拟系统由近岸波浪模型SWAN、海洋环流模型ROMS和地形演变的泥沙输运模型组成。结果表明，潮汐高程和潮流对波浪有显著影响，而潮汐强迫和波浪对底部剪应力有显著影响。波浪会对水柱中与底边界层和混合强度有关的过程产生影响。波浪场对辐射剪切力和底部剪切力的梯度产生影响，而辐射剪切力和底部剪切力的梯度改变了水流速度和波高，进而影响近岸沉积物的输运和由此产生的地形变化。当有波浪场存在时，即使在风暴条件下，推移质输沙率也会下降。结果突出了波浪和潮汐之间的相互作用在用波浪能装置模拟海岸地貌时的重要性。
This study investigates impacts of a wave farm on waves, currents and coastal morphology adjacent to the wave farm, which is located in the Southwest of England (the Wave Hub). In this study, we focus on the interaction between waves and tides due to the presence of the wave farm and its effects on wave radiation stresses, bottom shear stresses and consequently on the sediment transport and the coast adjacent to the wave farm, using an integrated numerical modelling system. The modelling system consists of the near-shore wave model SWAN, the ocean circulation model ROMS and a sediment transport model for morphological evolution. The results show that tidal elevation and tidal currents can have a significant effect on waves and that tidal forcing and waves have a significant effect on bottom shear stresses. Waves can impact on the processes related to the bottom boundary layer and mixing intensity in the water column. The wave farm has an impact on the gradients of radiation shear stresses and bottom shear stresses that modify current speeds and wave heights, which in turn impact on the near-shore sediment transport and the resulting morphological changes. Bed load transport rates show a decrease when the wave farm is present, even during storm conditions. The results highlight the importance of the interactions between waves and tides when modelling coastal morphology with presence of wave energy devices.
波浪场的双向波浪和潮汐耦合建模
DOI：
--
发表时间：
2011
期刊：
影响因子：
--
作者：
Drake Circus
通讯作者：
Drake Circus
模拟波浪农场的波浪与潮汐相互作用
DOI：
10.9753/icce.v32.waves.34
发表时间：
2011
期刊：
Coastal Engineering Proceedings
影响因子：
--
作者：
Gonzalez-Santamaria R
通讯作者：
Gonzalez-Santamaria R