期刊
JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS
卷 205, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.jweia.2020.104282
关键词
Computational fluid dynamics (CFD); Large eddy simulation (LES); Digital wind tunnel; CAARC building; Corner modifications; Aerodynamic optimisation; Wind loading; Predicted peak structural response; Floor-by-Floor loadings
资金
- Ramboll Foundation
- Ramboll Denmark A/S
- Innovation Fund Denmark
Wind load assessment of the CAARC high-rise building performed with Large Eddy Simulation has recently shown to be applicable in Part 1 of the research, where deviations between experimental and digital results were in average 10-13% for the peak wind loads. Part 2 performs CFD blind tests of the CAARC building with chamfered and rounded corner modifications, to investigate how accurate CFD simulations are without prior knowledge of experimental wind tunnel results. The high-rise buildings are examined for the surface pressure distribution, the peak predicted structural responses and the Floor-by-Floor loadings. The settings for the numerical simulations of Part 2 are similar to the tests of Part 1. The CFD simulations are performed as replicas of experimental wind tunnel tests, to secure directly comparable test setup and post-processing procedures. The mean surface pressures on both high-rise buildings had high consistency with experimental results. Furthermore, the minimum and maximum peak surface pressure coefficients showed prominent good agreements. The chamfered high-rise building had average deviations of 14.92, 14.08 and 22.07% for the M-x, M-y and M-z base peak moments, where discrepancies of 12.56, 11.58 and 15.51% for M-x, M-y and M-z were found for the rounded corner high-rise building.
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