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本文主要讨论了风机水平放置并靠近地面工作时,产生地面涡的必要条件;对地面涡的生成机理及其旋转方向做了分析,提出了一个理论流动模型;文中还对地面涡的危害做了分析并提出了消除它的方法。
This paper mainly discusses the necessary conditions for the generation of ground vortex when the fan is placed horizontally and works close to the ground. The formation mechanism and the direction of rotation of the ground vortex are analyzed. A theoretical flow model is proposed. The damage of the ground vortex is also made Analyzed and put forward the method to eliminate it.