Wind and Structures

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Turbulence effects on surface pressures of rectangular cylinders

  • Li, Q.S. (Department of Building and Construction, City University of Hong Kong) ;
  • Melbourne, W.H. (Department of Mechanical Engineering, Monash University)
  • Published : 1999.12.25
⟨ Previous Next ⟩

Abstract

This paper presents the effects of free-stream turbulence on streamwise surface pressure fluctuations on two-dimensional rectangular cylinders. Particular attention is given to possible effects of turbulence integral scale on fluctuation and peak pressures. The mean, standard deviation, peak pressure coefficients, spectra and cross-correlation of fluctuating pressures were measured to investigate the nature of the separation and reattachment phenomenon in turbulent flows over a wide range of turbulence intensity and integral scale.

Keywords

References

  1. Bearman, P.W., (1972), "Some recent measurements on the flow around bluff bodies in smooth and turbulent flow" , Symposium on External Flows, Bristol University.
  2. Bearman, P.W. and Trueman, D.M., (1972), "An investigation of the flow around rectangular cylinders" , Aero. Quart., 23, 229-237.
  3. Hillier, R. and Cherry, N.J., (1981), "The effects of stream turbulence on separation bubbles" , J. Wind Eng. & lnd. Aerodyn., 8, 49-58. https://doi.org/10.1016/0167-6105(81)90007-6
  4. Holmes, J.D., (1984), "Effect of frequency responses on peak pressure measurements", J. Wind Eng. Ind. Aerodyn, 17, 1-9. https://doi.org/10.1016/0167-6105(84)90031-X
  5. Hunt, A., (1981), "Scale effect on wind tunnel measurements of wind effects on prismatic buildings" , Ph.D Thesis, Cranfield Institute of Technology.
  6. Lee, B.E., (1975), "The effects of turbulence on the surface pressure field of a square prism" , J. Fluid Mech., 69, 263-282. https://doi.org/10.1017/S0022112075001437
  7. Li, Q.S., (1996), "The effects of turbulence on streamwise surface pressures in separated and reattaching flows" , Ph.D Thesis, Monash University.
  8. Li, Q.S. and Melbourne, W.H., (1995a), "An experimental investigation of the effects of free-stream turbulence on streamwise surface pressures in separated and reattaching flows", J. Wind Eng. & Ind. Aerodyn., 51-52, 313-323.
  9. Li, Q.S. and Melbourne, W.H., (1995b), "Effects of turbulence on surface pressures of a plat plate and a rectangular cylinder in separated and reattaching flows", The Proc. of Ninth International Conference on Wind Engineering, New Delhi.
  10. Li, Q.S. and Melbourne, W.H., (1995c), "Effects of free-stream turbulence on surface pressures fluctuations of a rectangular cylinder in separated and reattaching flows", Proc. of Sixth Asian Congress of Fluid Mechanics, Singapore.
  11. Nakamura, Y. and Ohya, Y., (1983), "The effects of turbulence on the mean flow past square rods", J. Fluid Mech., 137, 331-345. https://doi.org/10.1017/S0022112083002438
  12. Nakamura, Y. and Ozono, S., (1984), "The effects of turbulence on the mean flow past twodimensional rectangular cylinders" ,J. Fluid Mech., 149, 255-273. https://doi.org/10.1017/S0022112084002640
  13. Nakamura, Y. and Ozono, S., (1987), "The effects of turbulence on a separated and reattaching flow" , J. Fluid Mech., 178, 477-490. https://doi.org/10.1017/S0022112087001320
  14. Saathoff, P.J. and Melbourne, W.H., (1989), "The generation of peak pressures in separated/reattaching flow" , J. Wind Eng. & Ind. Aerodyn., 32, 121-134. https://doi.org/10.1016/0167-6105(89)90023-8
  15. Saathoff, P.J., (1988), "Effects of free-stream turbulence on surface pressure fluctuations in separated and reattaching flow" , PhD Thesis, Monash University.

Cited by

  1. Wind effects on the world’s longest spatial lattice structure: Loading characteristics and numerical prediction vol.63, pp.10, 2007, https://doi.org/10.1016/j.jcsr.2006.12.001
  2. Wind effect on milad tower using computational fluid dynamics vol.20, pp.2, 2011, https://doi.org/10.1002/tal.522
  3. Prediction of wind-induced pressures on a large gymnasium roof using artificial neural networks vol.85, pp.3-4, 2007, https://doi.org/10.1016/j.compstruc.2006.08.070
  4. Field measurements of wind and structural responses of a 70-storey tall building under typhoon conditions vol.9, pp.5, 2000, https://doi.org/10.1002/1099-1794(200012)9:5<325::AID-TAL169>3.0.CO;2-B
  5. Evaluation of wind effects on a supertall building based on full-scale measurements vol.29, pp.12, 2000, https://doi.org/10.1002/1096-9845(200012)29:12<1845::AID-EQE995>3.0.CO;2-Q
  6. Wind tunnel and full-scale study of wind effects on China’s tallest building vol.28, pp.12, 2006, https://doi.org/10.1016/j.engstruct.2006.02.017
  7. Numerical evaluation of wind effects on a tall steel building by CFD vol.63, pp.5, 2007, https://doi.org/10.1016/j.jcsr.2006.06.033
  8. Wind effects on a large cantilevered flat roof: loading characteristics and strategy of reduction vol.8, pp.5, 2005, https://doi.org/10.12989/was.2005.8.5.357
  9. Prediction of wind loads on a large flat roof using fuzzy neural networks vol.28, pp.1, 2006, https://doi.org/10.1016/j.engstruct.2005.08.006
  10. Full-scale measurements of wind effects on the Jin Mao building vol.95, pp.6, 2007, https://doi.org/10.1016/j.jweia.2006.09.002
  11. Field measurements of boundary layer wind characteristics and wind-induced responses of super-tall buildings vol.96, pp.8-9, 2008, https://doi.org/10.1016/j.jweia.2008.03.004
  12. Investigation of the effects of free-stream turbulence on wind-induced responses of tall building by Large Eddy Simulation vol.18, pp.6, 2014, https://doi.org/10.12989/was.2014.18.6.599
  13. Dynamic Instability of Spatial Structures under Typical Wind Flow vol.295-297, pp.1662-8985, 2011, https://doi.org/10.4028/www.scientific.net/AMR.295-297.1738