STUDY ON ESTABLISHMENT AND ACCURACY OF WIND SPEED PROFILE IN BUILDING WIND FIELD

Hou Yali; Li Qi; Wang Wenxin; Li Cunhu; Bao Daorina

doi:10.19912/j.0254-0096.tynxb.2025-0044

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (5) : 377-385. DOI: 10.19912/j.0254-0096.tynxb.2025-0044

STUDY ON ESTABLISHMENT AND ACCURACY OF WIND SPEED PROFILE IN BUILDING WIND FIELD

Hou Yali^1,2, Li Qi¹, Wang Wenxin³, Li Cunhu¹, Bao Daorina¹

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Abstract

Based on the ZephIR 300 lidar wind measurement system, the wind speed and wind direction data of 11 measuring points in the 11-200 m height range of a building wind field in Hohhot, Inner Mongolia were collected in real time. Based on the detailed analysis of the characteristics of the real wind speed profile in the building wind field, the exponential, logarithmic and semi-logarithmic wind speed profiles in line with the topographic characteristics of the experimental site were established. The proximity of the three wind speed profiles to the actual inflow wind speed profile was analyzed, and the accuracy of the wind speed profile was evaluated using statistical parameters. The results show that the variation in wind direction with height within the building wind field decreases as wind speed increases. In the low wind speed area with wind speed<4 m/s, the influence of wind direction cannot be ignored when establishing the wind speed profile. The wind speed deviation in the building wind field increases with the increase of height, but the wind speed deviation at all heights will decrease under the condition of high wind speed. The wind speed profile in the building wind field is more in line with the logarithmic wind speed profile ; the reference values of surface roughness length and wind shear index in the relevant standards cannot accurately describe the topographic characteristics in the building environment. More research is needed to expand the accurate reference values based on the topographic characteristics of the building environment.

Key words

building wind field / inflow wind speed profile / wind speed / wind direction / wind speed deviation / statistical parameters

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Hou Yali, Li Qi, Wang Wenxin, Li Cunhu, Bao Daorina. STUDY ON ESTABLISHMENT AND ACCURACY OF WIND SPEED PROFILE IN BUILDING WIND FIELD[J]. Acta Energiae Solaris Sinica. 2026, 47(5): 377-385 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0044

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