基于FVCOM的山東齋堂島潮流試驗場的潮流數(shù)值模擬
發(fā)布時間：2018-12-19 09:59
【摘要】：隨著傳統(tǒng)化石能源儲量的急劇下降，，全球變暖等環(huán)境問題不斷涌現(xiàn)，開發(fā)利用綠色清潔可再生能源已經(jīng)迫在眉睫。這個全球性的話題引發(fā)了一場能源革命，世界各國進行了各種嘗試，其中太陽能和風(fēng)能已經(jīng)小有規(guī)模，但是依然遠遠滿足不了人類的需求，于是人們將目光投向了海洋，其占地球表面的70%，儲藏的能源巨大。我國具有漫長的海岸線以及浩瀚的海域，這些對海洋資源開發(fā)具有很大的優(yōu)勢，其中潮流能的開發(fā)利用已經(jīng)逐漸步入正軌。本文以山東省齋堂島潮流試驗場為工程試點，運用潮流數(shù)值模型對該區(qū)域的潮流能分布及儲量進行評估。 本文首先對國內(nèi)外潮流能資源分布及開發(fā)現(xiàn)狀做出介紹，總結(jié)了現(xiàn)在應(yīng)用廣泛的二維三維潮流數(shù)值模擬方法和軟件，著重介紹了本文主要使用的三維潮流模型FVCOM，從其理論方程，邊界條件到適用特點。然后，分類介紹國內(nèi)外設(shè)計的潮流能發(fā)電裝置，提出了齋堂島試驗場所用的由中國海洋大學(xué)設(shè)計的水平軸潮流能裝置。 對于齋堂島試驗場的潮流能評估，礙于實測資料太少，只能選取大小網(wǎng)格嵌套的方法。首先，分別利用FVCOM和ADCIRC模型對齋堂島外海大區(qū)域進行數(shù)值計算，依據(jù)董家口的實測值驗證兩種模型的準確度，同時比較分析兩種模型的計算結(jié)果。然后，根據(jù)驗證后的潮位數(shù)據(jù)插值得到小區(qū)域試驗場開邊界的輸入條件，利用FVCOM模型計算得到試驗場的潮位變化以及流速三維分布。在潮流能裝置安放位置，由流速的三維分布積分得到其潮流能能量密度，計算得到一個大潮周期內(nèi)的潮流能大小，并與常見的評估方法簡化公式計算值作比較。 本文所用模型未考慮裝置布置后對周邊潮流的影響，以及后期陣列布放發(fā)電裝置時相互之間的影響，計算結(jié)果仍存在不足，模型需要進一步完善調(diào)整。
[Abstract]:With the rapid decline of the reserves of traditional fossil energy, global warming and other environmental problems have been emerging, the development and utilization of green clean and renewable energy has become urgent. This global topic has triggered an energy revolution, and countries around the world have made a variety of attempts, including solar and wind energy, which are already small and still far from meeting the needs of mankind, so people are looking at the oceans. It accounts for 70 percent of the earth's surface and stores huge amounts of energy. China has a long coastline and vast sea area, which has great advantages to the exploitation of marine resources, among which the development and utilization of tidal energy has been gradually on the right track. In this paper, the tidal current distribution and reserves in the area are evaluated by using the tidal current numerical model based on the tidal current test site of Jaitang Island, Shandong Province. This paper first introduces the distribution and development of tidal current energy resources at home and abroad, summarizes the widely used 2D 3D power flow numerical simulation methods and software, and emphatically introduces the 3D power flow model FVCOM, which is mainly used in this paper. From its theoretical equations, boundary conditions to applicable characteristics. Then, the domestic and foreign tidal current power generation devices designed at home and abroad are introduced, and a horizontal axis power flow energy device designed by Ocean University of China is put forward for the Jaitang Island Test site. For the power flow energy assessment of Jaitang Island test site, due to the lack of measured data, the method of nesting large and small grids can only be selected. Firstly, the FVCOM and ADCIRC models are used to calculate the large sea area off Jaitang Island, and the accuracy of the two models is verified according to the measured values of Dong Jiakou. Meanwhile, the results of the two models are compared and analyzed. Then, according to the verified tidal level data interpolation, the input conditions of the open boundary of the test site in a small area are obtained, and the tidal level variation and the three-dimensional velocity distribution of the test site are calculated by using the FVCOM model. The energy density of tidal current is obtained by integrating the three dimensional distribution of flow velocity in a tidal current device, and the magnitude of tidal energy in a spring tide cycle is calculated, and the calculated values are compared with those calculated by the simplified formula of common evaluation methods. The model used in this paper does not take into account the influence of the arrangement of the device on the peripheral power flow and the mutual influence of the later stage of the array layout. The calculation results are still insufficient and the model needs to be further improved and adjusted.
【學(xué)位授予單位】：天津大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：P731.2;P743
本文編號：2386765
[Abstract]:With the rapid decline of the reserves of traditional fossil energy, global warming and other environmental problems have been emerging, the development and utilization of green clean and renewable energy has become urgent. This global topic has triggered an energy revolution, and countries around the world have made a variety of attempts, including solar and wind energy, which are already small and still far from meeting the needs of mankind, so people are looking at the oceans. It accounts for 70 percent of the earth's surface and stores huge amounts of energy. China has a long coastline and vast sea area, which has great advantages to the exploitation of marine resources, among which the development and utilization of tidal energy has been gradually on the right track. In this paper, the tidal current distribution and reserves in the area are evaluated by using the tidal current numerical model based on the tidal current test site of Jaitang Island, Shandong Province. This paper first introduces the distribution and development of tidal current energy resources at home and abroad, summarizes the widely used 2D 3D power flow numerical simulation methods and software, and emphatically introduces the 3D power flow model FVCOM, which is mainly used in this paper. From its theoretical equations, boundary conditions to applicable characteristics. Then, the domestic and foreign tidal current power generation devices designed at home and abroad are introduced, and a horizontal axis power flow energy device designed by Ocean University of China is put forward for the Jaitang Island Test site. For the power flow energy assessment of Jaitang Island test site, due to the lack of measured data, the method of nesting large and small grids can only be selected. Firstly, the FVCOM and ADCIRC models are used to calculate the large sea area off Jaitang Island, and the accuracy of the two models is verified according to the measured values of Dong Jiakou. Meanwhile, the results of the two models are compared and analyzed. Then, according to the verified tidal level data interpolation, the input conditions of the open boundary of the test site in a small area are obtained, and the tidal level variation and the three-dimensional velocity distribution of the test site are calculated by using the FVCOM model. The energy density of tidal current is obtained by integrating the three dimensional distribution of flow velocity in a tidal current device, and the magnitude of tidal energy in a spring tide cycle is calculated, and the calculated values are compared with those calculated by the simplified formula of common evaluation methods. The model used in this paper does not take into account the influence of the arrangement of the device on the peripheral power flow and the mutual influence of the later stage of the array layout. The calculation results are still insufficient and the model needs to be further improved and adjusted.
【學(xué)位授予單位】：天津大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：P731.2;P743
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