基于MIKE21的城市湖泊人工水循环的浓度场数值模拟

Numerical Simulation of Concentration Field of Artificial Water Circulation in Urban Lake Based on MIKE21.

以西安市长乐湖为例应用MIKE21软件模拟研究了城市湖泊的人工水循环对水环境的改善作用,对比分析3个方案在12种工况下的水循环过程中的浓度场演变,通过人为设置不同的进、出水口位置、不同工况组合,来调节分配换水量和换水时间,从而改善城市湖泊的水动力条件、污染物分布。人工水循环措施能够有效提高城市湖泊水质,可以使用MIKE21软件进行城市人工湖泊水环境设计。

Taking the example of Changle Lake in Xi＇an as an example, the MIKE21 software was used to simulate and study the effect of artificial water circulation in urban lakes on the improvement of water environment. The evolution of the concentration field in the water cycles of the three schemes under 12 conditions was compared and analyzed. The inlet and outlet positions and the combination of different working conditions are used to adjust the amount of water exchanged and water exchange time, so as to improve the hydrodynamic conditions and the distribution of pollutants in urban lakes. Artificial water cycle measures can effectively improve the water quality of urban lakes. MIKE21 software can be used to design urban artificial lake water environment.