评估巴西海岸外的重力波能量潜力

Q2 Earth and Planetary Sciences
C. Pegorelli, M. Dottori, João Flesch Fortes
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引用次数: 1

摘要

摘要利用现场浮标数据和模型数据估算了巴西海岸的波浪能势。结果表明,东南偏南沿海地区比东北沿海地区潜力更大,但差异也更大。这些似乎与不同的大气状态有关。而在东北部,信风决定了波浪的状态,在南部,冷锋系统的通过起主要作用。对于几乎所有地区和全年,能量潜力在10至30千瓦/米之间波动,这是实施波浪能转换器的最有效范围。对海况的发生也进行了评估,表明冷锋系统的通过也在南-西南地区产生了不同的海况。最后,对最常见的海况和能量通量进行了估计,表明后者的周期更长,波浪更高。在南-西南海岸,虽然最常见的海态波浪周期约为8秒,但能量通量在这些波浪和周期约为11秒的波浪之间的分布更为平衡,11秒是冷锋系统产生的波浪的常见周期。这一结果表明,最常见的海况不一定是规划该地区波浪能转换器时应考虑的海况。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Evaluating the gravity wave energy potential off the Brazilian coast
Abstract The wave energy potential on the Brazilian coast is estimated using in-situ buoy data and model data. The results present a greater potential on the southern-southeastern coast than on the northeastern coast, but the variance is also larger. These seem to be associated with the different atmospheric regimes. While in the northeastern portion the trade winds determine the wave regime, in the south the passage of cold front systems plays a major role. For almost all regions and throughout the year, the energy potential oscillates between 10 and 30 kW/m, the most efficient range to implement wave energy converters. The occurrence of sea states is also assessed, showing that the passage of cold front systems also creates different sea states in the S-SW area. Finally, the most common sea states and energy flux are estimated, showing a shift towards longer periods and higher waves for the latter. On the S-SW coast, although the most frequent sea states have waves with periods around 8 s, the energy flux has a more balanced distribution between these and the waves with periods around 11s, the common period for waves generated by cold front systems. This result shows that the most common sea state is not necessarily the one that should be considered when planning wave energy converters for the region.
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来源期刊
CiteScore
2.30
自引率
0.00%
发文量
0
审稿时长
>12 weeks
期刊介绍: The Brazilian Journal of Oceanography covers the entire spectrum of disciplines within the science of oceanography, publishing articles dealing with the biological oceanography, physical oceanography, marine chemistry, sedimentology and geology, from coastal and estuarine waters out to the open sea. Emphasis is placed on inter-disciplinary process-oriented contributions. BJO also publishes issues dedicated to results of scientific meetings and of large inter-disciplinary studies or topical issues on specific subjects. The audience is composed by physical, chemical and biological oceanographers, marine sedimentologists, geologists and geochemists, marine biologists and ecologists. Papers sent to BJO must present results from original research and be written in english.
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