标题： 边界流在有限元浅水模型中的表示 显示英文标题

标题： The representation of boundary currents in a finite element shallow water model

摘要： 我们评估局部分辨率、涡粘性、海岸线结构和边界条件对有限元浅水模型中边界流数值表示的影响。 有限元离散化方法相比之前文献中主要使用的有限差分和有限体积方法，提供了更高的灵活性。 这对于海岸线的几何形状和边界条件的实现都是正确的。 在我们的研究中，我们模拟了理想化和现实海岸线的西边界流稳定分离。 使用网格细化可以在合理的数值成本下详细研究边界分离。 显示英文摘要

摘要： We evaluate the influence of local resolution, eddy viscosity, coastline structure, and boundary conditions on the numerical representation of boundary currents in a finite element shallow-water model. The use of finite element discretization methods offers a higher flexibility compared to finite difference and finite volume methods, that are mainly used in previous publications. This is true for the geometry of the coast lines and for the realization of boundary conditions. For our investigations we simulate steady separation of western boundary currents from idealized and realistic coast lines. The use of grid refinement allows a detailed investigation of boundary separation at reasonable numerical cost.