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A platform for research: civil engineering, architecture and urbanism
Wind tunnel investigation of wind reduction effect under porous fences protection
https://orcid.org/0000-0003-4537-4826
https://orcid.org/0000-0001-8342-6522
Abstract The shelter effect of porous fence installed in a bulk terminal was experimentally investigated through three-dimensional wind tunnel tests. Three arrangements of porous fences, eight incoming wind directions and three height of fences H (=12,14,16m) were examined to investigate the dependences of wind velocity and turbulence intensity throughout the yard on the above factors. In each case, the ratios of the velocity and turbulence intensity with and without the porous fence, namely λ and σ, respectively, were used to quantify the wind sheltering effect. It was found that the case with a combination of H = 14m and the porous fence arranged in the direction perpendicular to the frequent wind direction (Arrangement-Ⅲ) had the best wind reduction effect (λ = 0.77, σ = 0.90) and the largest economic efficiency. The present paper demonstrates that, to achieve better shelter effect, the porous fence arranged in the direction perpendicular to the normal wind direction is recommended.
Highlights Buildings around the yard will significantly affect the wind velocity in the yard. The reduction coefficient of porous fence on wind velocity (λ) and turbulence intensity (σ) is defined. The wind velocity reduction capacity of the fence is significantly affected by the direction of the incident wind. Suggestions of fence arrangement in terms of wind directions and the locations of sensitive points were put forward.
Wind tunnel investigation of wind reduction effect under porous fences protection
https://orcid.org/0000-0003-4537-4826
https://orcid.org/0000-0001-8342-6522
Abstract The shelter effect of porous fence installed in a bulk terminal was experimentally investigated through three-dimensional wind tunnel tests. Three arrangements of porous fences, eight incoming wind directions and three height of fences H (=12,14,16m) were examined to investigate the dependences of wind velocity and turbulence intensity throughout the yard on the above factors. In each case, the ratios of the velocity and turbulence intensity with and without the porous fence, namely λ and σ, respectively, were used to quantify the wind sheltering effect. It was found that the case with a combination of H = 14m and the porous fence arranged in the direction perpendicular to the frequent wind direction (Arrangement-Ⅲ) had the best wind reduction effect (λ = 0.77, σ = 0.90) and the largest economic efficiency. The present paper demonstrates that, to achieve better shelter effect, the porous fence arranged in the direction perpendicular to the normal wind direction is recommended.
Highlights Buildings around the yard will significantly affect the wind velocity in the yard. The reduction coefficient of porous fence on wind velocity (λ) and turbulence intensity (σ) is defined. The wind velocity reduction capacity of the fence is significantly affected by the direction of the incident wind. Suggestions of fence arrangement in terms of wind directions and the locations of sensitive points were put forward.
Wind tunnel investigation of wind reduction effect under porous fences protection
https://orcid.org/0000-0003-4537-4826
https://orcid.org/0000-0001-8342-6522
Abstract The shelter effect of porous fence installed in a bulk terminal was experimentally investigated through three-dimensional wind tunnel tests. Three arrangements of porous fences, eight incoming wind directions and three height of fences H (=12,14,16m) were examined to investigate the dependences of wind velocity and turbulence intensity throughout the yard on the above factors. In each case, the ratios of the velocity and turbulence intensity with and without the porous fence, namely λ and σ, respectively, were used to quantify the wind sheltering effect. It was found that the case with a combination of H = 14m and the porous fence arranged in the direction perpendicular to the frequent wind direction (Arrangement-Ⅲ) had the best wind reduction effect (λ = 0.77, σ = 0.90) and the largest economic efficiency. The present paper demonstrates that, to achieve better shelter effect, the porous fence arranged in the direction perpendicular to the normal wind direction is recommended.
Highlights Buildings around the yard will significantly affect the wind velocity in the yard. The reduction coefficient of porous fence on wind velocity (λ) and turbulence intensity (σ) is defined. The wind velocity reduction capacity of the fence is significantly affected by the direction of the incident wind. Suggestions of fence arrangement in terms of wind directions and the locations of sensitive points were put forward.
Wind tunnel investigation of wind reduction effect under porous fences protection
Dong, Guan-ning (author) / Chen, Ting-guo (author) / Ren, Cheng-jiao (author) / Wang, Ke (author)
2022-11-22
Article (Journal)
Electronic Resource
English
WIND PROTECTION BY MODEL FENCES AROUND TALL BUILDINGS
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