Wind tunnel test of wind field characteristics on isolated hill and two adjacent hills
SHEN Guo hui, YAO Dan, YU Shi ce, LOU Wen juan, XING Yue long, PAN Feng
1. College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, 310058, China；
2. Hangzhou Architectural Design & Research Institute Co., Ltd, Hangzhou, 310000, China;
3. Electric Power Design Institute of Zhejiang Province, Hangzhou 310007, China
A set of experimental equipment and supporting frame were developed, which can measure the wind velocities of multiple points simultaneously in a wind tunnel,in order to study the wind field characteristics on threedimensional hills under isolated hill and two adjacent hills condition, The wind velocities on isolated hills with different slopes were tested. The wind velocities on two adjacent hills with frontrear and leftright arrangement were also tested and the influence of hill distance and slope to the velocities were investigated. Results show that, for the isolated hill condition, the speedup effects on the crosswind plane are more significant than those on the alongwind plane, and the most unfavorable position are ranged from threequarter hill height to the top of the hill on the crosswind plane. When two adjacent hills are in the frontrear arrangement with zero distance, the wind velocities on the front hill are very close to those on the isolated hill, while the wind velocities on the rear hill are much lower than those on the isolated hill. When two hills are in the leftright arrangement, the speedup effect at the top of the hill are slightly more significant than those on the isolated hill, and the speedup effect on the hill in the valley side are more significant than those on the isolated hill.
SHEN Guo hui, YAO Dan, YU Shi ce, LOU Wen juan, XING Yue long, PAN Feng. Wind tunnel test of wind field characteristics on isolated hill and two adjacent hills. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2016, 50(5): 805-812.
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