汾河下游河道二维水流模拟

Two-Dimensional Flow Simulation in the Lower Fenhe River

采用深度平均的二维水流模型,对汾河下游流速、水深进行了数值模拟,得到的水位、流量与实测资料基本一致,验证了该模型对河道进行二维数值模拟的可行性,然后利用该模型对河道水力参数进行了模拟计算,结果表明:不同时段的河道流速、水深等水力指标均能满足水生生物的生长要求。

Based on the depth of the average two-dimensional shallow water circulation model, the paper conducted flow two-dimensional numerical simulation in the lower Fenhe River, the calculated water level and flow were in good agreement with the measured data, verified the feasibility of the model to the two-dimensional numerical simulation, then used the model make the simulation calculation to the river hydraulic parameters. The results show that the river flow velocity and water depth at different times of the hydraulic indexes can meet the growth demand of aquatic organisms.