Investigation of the speed-up effects of wind flow over typical terrains covered by vegetation
PROCEEDINGS OF THE 2015 4TH INTERNATIONAL CONFERENCE ON SUSTAINABLE ENERGY AND ENVIRONMENTAL ENGINEERING(2016)
摘要
The wind characteristics of 6 typical hills (15 degrees, 30 degrees, 45 degrees escarpments and ridges) covered by grass and forest vegetation were investigated by wind tunnel test. The velocity ratio distribution on the crest and downwind slope were obtained, and the effects of slopes, hill shapes and ground roughness on the wind velocity ratios were summarized. Through comparison with Codes from several countries, 5 recommended revisions were proposed for the current Chinese loadings Codes.
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关键词
speed-up,vegetation,typical terrain,wind tunnel,atmospheric boundary layer
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