Title: NUMERICAL EXPERIMENTS ON INFLUENCE OF WIND SPEED ON CURRENT IN LAKE
Abstract: Numerical experiments on wind influence on water current in Zhuhu Lake (or Bamboo Lake in Chinese, an artificial lake within a residential area of Shanghai) were conducted with 3-D hydrodynamic EcoTaihu Model (partially). The study aims at understanding the movement and function of the lake for developing the lake in an environmental friendly manner. East, west, north, and south winds were simulated with speed from 0 to 11.0 m/s. Comparisons of vertical-averaged current field among the winds of different speeds in the four directions showed that the wind speed had great influences on the current. For each wind direction, there is a critical speed, below which the current was controlled by water flows inlet and outlet, while above which the current is mainly dominated by wind. Moreover, when wind speed reached certain speed, two or more circumfluences were formed. In the area of sharp depth change, the pattern of average current field varies sensitively with wind speed change, while in the area of flat and gentle bottom, insensitively. The current direction in shallow water was consistent with the direction of the wind, while against the wind direction in deeper water and responded slowly.
Publication Year: 2008
Publication Date: 2008-01-01
Language: en
Type: article
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Cited By Count: 10
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