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Wind tunnel modeling of roof pressure and turbulence effects on the TTU test building

  • Bienkiewicz, Bogusz (Wind Engineering and Fluids Laboratory, Department of Civil Engineering Colorado State University) ;
  • Ham, Hee J. (Division of Architecture, Kangwon National University)
  • 투고 : 2000.02.05
  • 심사 : 2002.08.30
  • 발행 : 2003.04.25

초록

The paper presents the results of 1:50 geometrical scale laboratory modeling of wind-induced point pressure on the roof of the Texas Tech University (TTU) test building. The nominal (prevalent at the TTU site) wind and two bounding (low and high turbulence) flows were simulated in a boundary-layer wind tunnel at Colorado State University. The results showed significant increase in the pressure peak and standard deviation with an increase in the flow turbulence. It was concluded that the roof mid-plane pressure sensitivity to the turbulence intensity was the cause of the previously reported field-laboratory mismatch of the fluctuating pressure, for wind normal and $30^{\circ}$-off normal to the building ridge. In addition, it was concluded that the cornering wind mismatch in the roof corner/edge regions could not be solely attributed to the wind-azimuth-independent discrepancy between the turbulence intensity of the approach field and laboratory flows.

키워드

과제정보

연구 과제 주관 기관 : National Science Foundation

참고문헌

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피인용 문헌

  1. Wind-tunnel investigation of point pressure on TTU test building vol.94, pp.7, 2006, https://doi.org/10.1016/j.jweia.2006.01.019
  2. Stationary vortices attached to flat roofs vol.98, pp.1, 2010, https://doi.org/10.1016/j.jweia.2009.09.001
  3. Peak pressures on low rise buildings: CFD with LES versus full scale and wind tunnel measurements vol.30, pp.1, 2020, https://doi.org/10.12989/was.2020.30.1.099