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用二维风生流数值模型模拟滇池湖流运动。滇池在主导风向西南风作用下,假定湖面风场是均匀的,数值模拟的湖流流态与实测湖流结果相差很大。而考虑山体遮挡影响,根据实测湖流期间现有的风情资料,在湖面上构造一非均匀风场,数值模拟结果与实测值基本一致。山体遮挡对滇池风生流的影响是不容忽视的。建议进一步进行湖流和湖面风向、风速监测,并建立过山气流数学模型,深入研究山体遮挡对湖泊风生流的影响。
Numerical simulation of two - dimensional wind flow in Lake Dianchi Lake. Dianchi Lake under the dominant wind direction of the southwest wind, assuming that the lake surface wind field is uniform, the numerical simulation of the lake flow and the measured lake results vary greatly. Considering the influence of mountain shelter, a non-uniform wind field is constructed on the surface of the lake according to the existing style information during the period of the lake. The numerical simulation results are basically consistent with the measured values. The impact of mountain shelter on the wind-induced current in Dianchi Lake can not be ignored. It is suggested to further monitor the wind direction and wind speed of the lake and lake, establish the mathematical model of the over-the-mountain flow, and further study the influence of the mountain shelter on the wind-induced flow of the lake.