利用有限元方法分析了二维情况下波浪入射角及地形对浮体水动力学特性的影响，计算了不同情况下浮体的水动力学系数；通过与简单地形情况下解析解的比较，验证了数值方法的正确性；并在分析中采用了BiCGStab算法，高效地求解离散形成的线性方程组，大大地提高了分析的效率。研究结果为海上结构物的设计提供了关键的水动力学数据。

Effects of incident wave angle and complicated topography on hydrodynamic characteristics of a buoy are studied using the Finite Element Method (FEM). The hydrodynamic coefficients of different conditions are acquired. The correctness of the numerical method is verified through a comparison with analytical results of a simple seabed. In order to improve the efficiency of the analysis, the BiCGStab algorithm, considered to be among the most powerful algorithm in solving linear systems, is employed. The results presented here will supply some important information for designs of ocean structures.