浅水湖泊风生流强度数值模拟及工程应用

Numerical Simulation of Shallow-water Lake Wind-driven Current and Its Engineering Application

针对浅水湖泊风生流对改善湖泊水环境的积极作用,基于水动力模型,建立了二维浅水湖泊风生流数值模型,利用单一变量控制法,综合分析了地形、风向、补水流量等影响浅水湖泊风生流的主要影响因素。以南方某城市浅水湖泊为例,模拟分析了不同方案下的风生流环流强度和流场特性,并由多方案效果综合分析和方案优化,提出了改善湖泊水环境的最佳工程与调控方案。

Shallow-water lake wind driven current has a positive effect on the improvement of lake water environment.Two-dimensional shallow-water lake wind-driven current model is built based on the hydrodynamic model.Taking advantage of single variable control method,the main factors for influencing the lake wind-driven current are analyzed comprehensively,such as the terrain,wind direction,filling water flow.Taking a shallow-water urban lake in the south for an example,the circulation intensity and the field distribution under the different schemes are simulated.By analysis and optimization of various solution effect,optimal engineering and control plan has been put forward to improve the lake water environment.