Space-time Distributional Characteristics Of Wave Energy And Tidal Current Energy In Chengshantou Sea Area

As a newly arisen and renewable energy, ocean energy has been receiving moreand more recognition, with the characteristics of large quantity, clean and noenvironment pollution. Our country has a long coastline, and vast ocean is rich inMarine energy resources. Exploring and utilizing the ocean energy resources hasimportant implications to alleviate energy shortages and reduce the environmentalpollution caused by generating power from burning fossil fuel, which our country hasalways faced with.Chengshantou, commonly known as the Chengshan corner, is located in the mosteastern end of Shandong province, which is surrounded by sea on three sides. Thewater depth outside the corner changes drastically, and the shoreline is complex. Itsspecial geographical position leads to velocity and waves quite large, and theabundant reserves of tidal current energy and wave energy.This thesis brieflyintroduces the conditions of the wind and the characteristics of the tidal level,tidalcurrent and waves in Chenshantou sea area. It also analyzes the observed tidal datafrom multiple stations in Chengshantou sea area in the winter of2010and the summerof2011.The study adopts ECOM tidal current numerical model to proceed a numericalmodel on the tidal current field of Chengshantou sea area in2011. And it uses SWANwave model-the third generation wave numerical model to make a numerical modelon the wave field of Chengshantou sea area from2000to2010. Compared thenumerical simulation results with the measured ones, tidal current and wavesimulation results are in line with the good. With the help of using numericalsimulation results to estimate the space-time distributional characteristics of tidalcurrent energy and wave energy of the research area, the results show that the tidalcurrent energy of the research area is biggest in winter, then in spring and autumn, andsmallest in the summer. It is also found that the maximum energy flux density value ismore than4kW/㎡, and the maximum regional value of annual average energy fluxdensity can reach more than1kW/㎡. Moreover, wave energy has obvious seasonalvariations, the largest in winter, then in the spring and autumn, and smallest insummer. In addition, annual average energy flux density of the eastern andnortheastern sea area of chengshantou is over2kw/m.