Abstract
The gradually growing demands of energy and global warming are series problems the globe facing. Facing this condition, renewable and green energy sources may play a key role in both of meeting the growing demand for energy and preventing global warming. Among the novel renewable and green energy sources, wave energy is one of the most promising marine energy sources. However, utility of wave energy resource might cause environment evolutions, which has to be paid much attention. So we can balance environment and resources. The present work focuses on the evolution of wave climate and wave-induced longshore current. To demonstrate effects of wave farm on evolution of the two parameters mentioned above more clearly, Zhangjiapu (ZJP) nearshore areas are regarded as the potential wave farm location. There are large wetland areas having sensitive environment problems. Therefore, this chapter studied the evolution of nearshore hydrodynamic environment in ZJP nearshore areas, including wave climate and wave-induced longshore current, which was caused by the installation of wave farm. Numerical simulation has been adopted to investigate the effects induced by wave farm on nearshore hydrodynamic environment. The wave and wave-induced longshore current have been simulated by flow model Delft3D. The significant wave height and period gotten by numerical model agree with measured data generally. There are obvious changes occurring when wave farm is installed along 20-m-depth contour in ZJP. This chapter is structured as the following five parts: First, theories of wave modelling and methods of wave energy resources assessment and hydrodynamic environment are introduced. Second, the model setting and validation are discussed. Third, wave energy resources were investigated based on wave parameters outputted by wave numerical modelling. Fourth, evolution of wave climate and longshore current induced by the potential wave farm is analysed by hydrodynamic modelling. Finally, some summaries about the evolution of hydrodynamic environment when wave farm is set up are given.
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Acknowledgments
The authors would like to acknowledge the support of the National Science Fund (Grant No. 51179178) and the Program for New Century Excellent Talents in University of China (Grant No. NCET-11-0471).
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Liang, B., Xu, Z., Shi, H., Fan, F. (2017). Modelling Analysis of the Influence of Wave Farm to Nearshore Hydrodynamics Forces. In: Zhang, X., Dincer, I. (eds) Energy Solutions to Combat Global Warming. Lecture Notes in Energy, vol 33. Springer, Cham. https://doi.org/10.1007/978-3-319-26950-4_11
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DOI: https://doi.org/10.1007/978-3-319-26950-4_11
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