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논문 기본 정보

자료유형
학술저널
저자정보
Li, Q.S. (Department of Civil and Architectural Engineering, City University of Hong Kong) Hu, G. (Department of Civil and Architectural Engineering, City University of Hong Kong) Yan, Bo-Wen (Department of Civil and Architectural Engineering, City University of Hong Kong)
저널정보
테크노프레스 Wind & structures Wind & structures 제18권 제6호
발행연도
2014.1
수록면
599 - 618 (20page)

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In this study, a square rectangular tall building is considered to investigate the effects of turbulence integral length scale and turbulence intensity on the along-wind responses, across-wind responses and torsional responses of the tall building by Large Eddy Simulation (LES). A recently proposed inflow turbulence generator called the discretizing and synthesizing random flow generation (DSRFG) approach is applied to simulate turbulent flow fields. It has been proved that the approach is able to generate a fluctuating turbulent flow field satisfying any given spectrum, desired turbulence intensity and wind speed profiles. Five profiles of turbulence integral length scale and turbulence intensity are respectively generated for the inflow fields by the DSRFG approach for investigating the effects of turbulence integral length scale and turbulence intensity on the wind-induced responses of the tall building. The computational results indicate that turbulence integral length scale does not have significant effect on the along-wind (displacement, velocity and acceleration) responses, across-wind displacement and velocity responses, while the across-wind acceleration and torsional responses vary without a clear rule with the parameter. On the other hand, the along-wind, across-wind and torsional responses increase with the growth of turbulence intensity.

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