论文部分内容阅读
为了在大范围数学模型中合理有效地模拟码头桩基等小尺度建筑物附近的潮流场,采用非结构网格建立了渤海二维有限元潮流数学模型.在面积达85700km2的模型范围中将码头桩基概化为面积约20～30m2的不透水单元,用于直接模拟桩基附近的复杂潮流场.在此基础上,对渤海曹妃甸海域10万吨级LNG(液化天然气)码头布置的走向进行了优化.结果表明:数学模型模拟的潮位和流速等水动力特征与实测结果一致,LNG码头布置的优化结果合理可信.表明建立的能够直接模拟小尺度建筑物的渤海二维有限元数学模型可应用于码头工程布置及优化的潮流场模拟研究.
In order to simulate the tidal flow field near the small-scale structures such as piers and piles effectively in a wide range of mathematical models, a two-dimensional finite element tidal current mathematical model of Bohai Sea is established by using unstructured grids.With the area of 85700km2, The pile foundation is generalized as a impermeable unit with an area of about 20-30m2, which can be used to directly simulate the complicated tidal current near the pile foundation.On the basis of this, the layout of 100,000-ton LNG (liquefied natural gas) terminal in the Caofeidian sea of Bohai Sea The results show that the hydrodynamic characteristics such as tide level and velocity of the mathematical model are consistent with the measured results, and the optimization results of LNG terminal layout are reasonable and credible.This paper shows that the established two-dimensional finite element mathematical model of Bohai Sea that can directly simulate small scale buildings It can be applied to the research on the tidal current field simulation of wharf layout and optimization.