Wind-induced effects and leeward flow patterns of a CAARC standard tall building model

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Journal of Vibration and Shock ›› 2019, Vol. 38 ›› Issue (24) : 122-130.

DONG Xin1,2，YE Jihong3，ZOU Yunfeng4，ZUO Taihui4

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Abstract

Through wind tunnel test, PIV experiment, and dynamic response calculation, wind pressure distribution, surrounding flow field, and wind-induced responses of a CAARC model under wind directions of 0° and 90° were investigated.Firstly, the wind pressure distribution and the total forces were compared.Results indicate that major difference of wind pressure distributions between the two wind directions is on the side face.Smaller drag and lift force, along with larger torque, is obtained under wind direction of 90°.Secondly, the flow field behind the model was displayed.A vortex pair in the horizontal plane was observed under two wind directions.Recirculation zone in the vertical plane appears only at wind direction of 0°.The vortex size and its reverse flow velocity are larger at wind direction of 0°.In addition, the transverse motion of fluid around the vortex is more vigorous.Thirdly, the variation of top displacement and acceleration with reduced velocity was explored.The along-wind and across-wind responses vary with reduced velocity to a power of 2—2.6 and 3—3.5, respectively.For wind direction of 90°, the amplification of across-wind displacement and across-wind acceleration with reduced velocity are twice and 2.6 times those under wind direction of 0°.

Key words

commonwealth advisory aeronautical research council(CAARC) / wind pressure distribution / total force / particle image velocimetry(PIV) / vortex / wind-induced response

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DONG Xin1,2，YE Jihong3，ZOU Yunfeng4，ZUO Taihui4. Wind-induced effects and leeward flow patterns of a CAARC standard tall building model[J]. Journal of Vibration and Shock, 2019, 38(24): 122-130

References

[1] Wardlaw R.L. and Moss G. F.. A standard tall building model for the comparison of simulated natural winds in wind tunnels. Commonwealth Advisory Aeronautical Research Council Report CC-662, Tech. 25, January 1970.

[2] Ahmed Elshaer, Haitham Aboshosha , Girma Bitsuamlak, Ashraf El Damatty. Agerneh Dagnew. LES evaluation of wind-induced responses for an isolated and a surrounded tall building [J]. Engineering Structures, 2016, 115: 179-195.

[3] 黄鹏，顾明，全涌. 高层建筑标准模型风洞测压和测力试验研究[J]. 力学季刊，2008，29(4)：627-633.（Huang Peng, Gu Ming, Quan Yong. Wind tunnel test research on CAARC standard tall building model [J]. Chinese Quarterly Mechanics, 2008, 29(4): 627-633. (in Chinese)）

[4] Melbourne W. H.. Comparison of measurements on the CAARC standard tall building model in simulated model wind flows [J]. Journal of Wind Engineering and Industrial Aerodynamics, 1980, 6: 73-88.

[5] Tanaka H. and Lawen N. Test on the CAARC standard tall building model with a length scale of 1:1000 [J]. Journal of Wind Engineering and Industrial Aerodynamics, 1986, 25: 15-29.

[6] Alexandre Luis Braun and Armando Miguel Awruch. Aerodynamic and aeroelastic analyses on the CAARC standard tall building model using numerical simulation [J]. Computers and Structures, 2009, 87: 564-581.

[7] Goliger A. M. and Milford R. V. Sensitivity of the CAARC standard building model to geometric scale and turbulence [J]. Journal of Wind Engineering and Industrial Aerodynamics, 1988, 31: 105-123.

[8] Thepmongkorn S., Kwok K. C. S., Lakshmanan N.. A two-degree-of-freedom base hinged aeroelastic (BHA) model for response predictions [J]. Journal of Wind Engineering and Industrial Aerodynamics, 1999, 83: 171-181.

[9] Shengdong Huang, Q. S. Li, Shengli Xu. Numerical evaluation of wind effects on a tall steel building by CFD [J]. Journal of Constructional Steel Research, 2007, 63: 612-627.

[10] Yue Zhang, Wagdi G. Habashi, Rooh A. Khurraam. Predicting wind-induced vibrations of high-rise buildings using unsteady CFD and modal analysis [J]. Journal of Wind Engineering and Industrial Aerodynamics, 2015, 136: 165-179.

[11] Dahai Yu, Ahsan Kareem. Parametric study of flow around rectangular prisms using LES [J]. Journal of Wind Engineering and Industrial Aerodynamics, 1998, 77&78: 653-662.

[12] J. A. Amin, A. K. Ahuja. Characteristics of wind forces and responses of rectangular tall building [J]. International Journal of Advances Structural Engineering, 2014, 6(3): 1-14.

[13] Yong Chul Kim and Jun Kanda. Wind pressures on tapered and set-back tall buildings [J]. Journal of Fluids and Structures, 2013, 39: 306-321.

[14] Ning Lin, Chris Letchford, Yukio Tamura, Bo Liang, Osamu Nakamura. Characteristics of wind forces acting on tall buildings [J]. Journal of Wind Engineering and Industrial Aerodynamics, 2005, 93: 217-242.

[15] Hee Chang Lim, T. G. Thomas, Ian P. Castro. Flow around a cube in a turbulent boundary layer: LES and experiment [J]. Journal of Wind Engineering and Industrial Aerodynamics, 2009, 97: 96-109.

[16] Hiromasa Kawai, Yasuo Okuda, Masamiki Ohashi. Near wake structure behind a 3D square prism with the aspect ratio of 2.7 in shallow boundary layer flow [J]. Journal of Wind Engineering and Industrial Aerodynamics, 2012, 104-106: 196-202.

[17] Sushanta Dutta, P. K. Panigrahi, K. Muralidhar. Experimental investigation of flow past a square cylinder at an angle of incidence [J]. Journal of Engineering Mechanics, 2008, 134(9): 788-803.

[18] Dantec Dynamics. DynamicStudio User’s Guide [M]. Dantec Dynamics A/S, Skovlunde, Denmark.

[19] Vedat Oruc, Huseyin Akilli, Besir Sahin. PIV measurements on the passive control of flow past a circular cylinder [J]. Experiemental Thermal and Fluid Science, 2016, 70: 283-291.