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Comparison for Assessment of Wind Environment in High-rise Buildings using Wind Tunnel Test and Computational Fluid Dynamics
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풍동실험과 전산유체해석을 이용한 고층건물의 풍환경 평가 비교

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Type
Academic journal
Author
Journal
ARCHITECTURAL INSTITUTE OF KOREA Journal of the Architectural Institute of Korea Vol.37 No.5(Wn.391) KCI Excellent Accredited Journal SCOPUS
Published
2021.5
Pages
163 - 171 (9page)

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Comparison for Assessment of Wind Environment in High-rise Buildings using Wind Tunnel Test and Computational Fluid Dynamics
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When a high-rise building is constructed adjacent to low-rise structures, damage is frequently caused by the associated strong wind patterns of which there are three typical forms. The first pattern is a separated flow which can occur at the corners of the buildings; the second is pilotis wind that occurs in narrow places such as columns installed in the lower parts of the high-rise building; and the third is a vortex flow which can occur between a low-rise building on the windward and a high-rise on the leeward. This study aimed to implement a standard evaluation of the wind environment and airflow characteristics around high-rise apartment blocks constructed next to low buildings using wind tunnel tests and computational fluid dynamics (CFD). In terms of validity, the correlation coefficient between the CFD and wind tunnel results ranged between 0.6 and 0.8. Correlations below 0.8 were due to differences in the range of the wake flow area generated at the backside of the target building according to wind direction angle and the effect of the surrounding buildings. In addition, a difference in average velocity ratio of the wake flow wind was observed in the values measured by the wind tunnel test and in the CFD analysis. The wind velocity values of the CFD analysis were therefore compensated, and, as a result, although the correlations for some wind angles were slightly reduced, most increased.
#풍환경 #풍동실험 #전산유체역학 #상관계수 #풍속비 #Wind Environment Wind Tunnel Test #Computational Fluid Dynamics #Correlation Coefficient #Velocity Ratio

Contents

Abstract
1. 서론
2. 풍환경 기준
3. 풍동실험 및 CFD해석
4. 해석결과 및 고찰
5. 결론
REFERENCES

References (8)

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Davenport, A.G. (1972). Approaches to the design of tall buildings against wind, Theme Report at Int. Conf. on Planning and Design of Tall buildings, Lehigh Univ. 1b-7, 1-22. google schola Gandemer, J. (1982). Simulation and measurement of the local wind environment, Proc. Workshop Wind Tunnel Modelling for Civil Engineering Applications, Gaithersburg google schola Isyumov, I., & Davenport, A.G. (1975). The fround wind environment in built-up areas, Proceedings of 4th International Conference on Wind Effects on Buildings and Structures, Cambridge University Press, Heathrow, 403-479 google schola Lawson, T.V., & Penwarden, A.D. (1975). The effects of wind on people in the vicinity of building, Proceedings of 4th International Conference on Wind Effects on Buildings and Structures, Cambridge University Press, Heathrow, 605-622. google schola Melbourne, W.H. (1978). Criteria for environmental wind condition, Journal of Wind Engineering and Industrial Aerodynamics, 3(2-3), 241-249 google schola

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