连环山体对湖面风速的影响

The Influence of Continuous Mountain Topography on Wind Speed of Lake Surface

在人工湖周围布置山体可有效控制湖面风速、减少水面蒸发损失。研究不同参数的山体模型对人工湖湖面风速的控制效果,对降低人工湖在正常运营阶段的水量补给有重要作用。使用有限元流体软件Fluent模拟分析多山体结构对湖面风速的影响,结果表明,在人工湖旁布置连环山体,前山体坡度和高度的改变对湖面风速变化的影响较大,连环山体间距和个数的改变对湖面风速变化的影响较小;坡度比为1∶1、高度为10 m的单山体控风效果优于连环山体的控风效果。研究成果对于控制城市景观湖水面蒸发、节约水资源具有较大参考意义。

Arranging mountains around the artificial lake can effectively control the wind speed on the lake surface and reduce the evaporation loss on the water surface. The study of the effect of mountain models with different parameters on the control of the wind speed of the artificial lake plays an important role in reducing the water supply of the artificial lake during the normal operation stage. This paper used the finite element fluid software Fluent to simulate and analyze the influence of multi-mountain structures on the lake surface wind speed. The results show that the arrangement of a chain of mountains beside the artificial lake, the change of the slope and height of the front mountain has a greater impact on the lake surface wind speed, the change of the number has little effect on the change of the lake surface wind speed;The wind control effect of a single mountain with a slope of 1∶1 and a height of 10 meters is better than that of a chain of mountains. This research has great reference significance for controlling the evaporation of urban landscape lakes and saving water resources.