The current problems are hot spots in recent years. With the rapid development of modern computer technology, numerical simulation technology has become an important means of scientific research, and the correlation numerical solution of two-dimensional shallow water equation is endless. In this paper, the two-dimensional shallow water equation was discretized by the finite element weighted lumped mass method, and the time is discretized by the forward Euler scheme, then the planar two-dimensional hydrodynamic model was established. The water boundary condition was defined by harmonic analysis method. The two-dimensional hydrodynamic model was applied to Daya Bay area and verified according to the measured meteorological data. Therefore, the hydrodynamic model established in this paper can be used to study the actual water flow in Daya Bay area.

中文翻译：

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基于有限元法的大亚湾水动力模型

当前的问题是近年来的热点。随着现代计算机技术的飞速发展，数值模拟技术已成为科学研究的重要手段，二维浅水方程的相关数值解层出不穷。本文通过有限元加权集总质量法离散二维浅水方程，通过正向欧拉格式离散时间，建立了平面二维水动力模型。用谐波分析法确定水边界条件。将二维水动力模型应用于大亚湾地区，并根据实测气象数据进行了验证。因此，本文建立的水动力模型可用于研究大亚湾地区的实际水流。