基于RMA2模型,以雷诺形式N-S方程为基础、以加权余量伽辽金有限元为基本求解方法,在实测地形上对河道进行概化,采用二次三角形网格离散模拟区域并进行局部加密,模拟了电场建设前后辽河滩地风机基础周边河段的水位、流速、流场分布等特性。结果表明,电场建成后对河道水位、流速影响均较小,虽存在局部绕流现象,但影响范围较小,绕流迅速消退,为电场建设和河道防洪评价提供了科学依据。 Based on the RMA2 model and based on the Reynolds-type Navier-Stokes equations, the weighted marginal Galerkin finite element method is used as the basic solution to generalize the river course on the measured terrains. The quadratic triangle mesh is used to discrete the simulated area and perform local encryption. Before and after the construction of electric field, the water level, velocity and distribution of flow field around the foundation of the Liaohe floodplain are simulated. The results show that the electric field has a small influence on the water level and velocity of the river. Although there is a partial flow around the river, the influence range is small and the flow around the river is rapidly dissipated. This provides a scientific basis for electric field construction and river flood control evaluation.