Wind and Structures

  • 제24권2호
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  • Pages.119-144
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  • 2017
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  • 1226-6116(pISSN)
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  • 1598-6225(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

A comprehensive high Reynolds number effects simulation method for wind pressures on cooling tower models

  • Cheng, X.X. (State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University) ;
  • Zhao, L. (State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University) ;
  • Ge, Y.J. (State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University) ;
  • Dong, J. (College of Civil Engineering, Nanjing Tech University) ;
  • Demartino, C. (College of Civil Engineering, Nanjing Tech University)
  • 투고 : 2016.07.19
  • 심사 : 2016.11.28
  • 발행 : 2017.02.25
⟨ 이전 논문 다음 논문 ⟩

초록

The traditional method for the simulation of high Reynolds number (Re) effects on wind loads on cooling tower models in wind tunnels focuses only on the mean wind pressure distribution. Based on observed effects of some key factors on static/dynamic flow characteristics around cooling towers, the study reported in this paper describes a comprehensive simulation method using both mean and fluctuating wind pressure distributions at high Re as simulation targets, which is indispensable for obtaining the complete full-scale wind effects in wind tunnels. After being presented in this paper using a case study, the proposed method is examined by comparing the full covariance matrices and the cross-spectral densities of the simulated cases with those of the full-scale case. Besides, the cooling tower's dynamic structural responses obtained using the simulated wind pressure fields are compared with those obtained by using the full-scale one. Through these works, the applicability and superiority of the proposed method is validated.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China, Tongji University

참고문헌

  1. Achenbach, E. (1968), "Distribution of local pressure and skin friction around a circular cylinder in cross-flow up to $Re=5{\times}10^6$", J. Fluid Mech., 34, 625-639. https://doi.org/10.1017/S0022112068002120
  2. Basu, P.K. and Gould, P.L. (1980), "Cooling tower using measured wind data", J. Struct. Division - ASCE, 106, 579-600.
  3. Bearman, P.W. (1969), "On vortex shedding from a circular cylinder in the critical Reynolds number regime", J. Fluid Mech., 34, 577-585.
  4. Cheng, X.X., Zhao, L., Ge, Y.J., Ke, S.T. and Liu, X.P. (2015), "Wind pressures on a large cooling tower", Adv. Struct. Eng., 18(2), 201-220. https://doi.org/10.1260/1369-4332.18.2.201
  5. Dalgliesh, W.A. (1969), "Experience with wind pressure measurements on a full-scale building", Proceedings of the technical meeting concerning wind loads on buildings and structures. Gaithersburg, Maryland.
  6. Farell, C. and Blessmann, J. (1983), "On critical flow around smooth circular cylinders", J. Fluid Mech., 136, 375-391. https://doi.org/10.1017/S0022112083002190
  7. Kargarmoakhar, R., Chowdhury, A.G. and Irwin, P.A. (2015), "Reynolds number effects on twin box girder
  8. Lawson, T.V. (1982), "The use of roughness to produce high Reynolds number flow around circular cylinders at lower Reynolds numbers", J. Wind Eng. Ind. Aerod., 10, 381-387. https://doi.org/10.1016/0167-6105(82)90009-5
  9. Lee, S., Kwon, S.D. and Yoon, J. (2014), "Reynolds number sensitivity to aerodynamic forces of twin box bridge girder", J. Wind Eng. Ind. Aerod., 127, 59-68. https://doi.org/10.1016/j.jweia.2014.02.004
  10. Ma, W.Y., Liu, Q.K., Du, X.Q. and Wei, Y.Y. (2015), "Effect of the Reynolds number on the aerodynamic forces and galloping instability of a cylinder with semi-elliptical cross sections", J. Wind Eng. Ind. Aerod., 146, 71-80. https://doi.org/10.1016/j.jweia.2015.08.006
  11. Ministry of Energy, P.R.C. (1989), NDGJ5-88: Technical Specification for Hydraulic Design of Thermal Power Plant.
  12. Niemann, H.J. (1971), Zur stationaren windblastung rotations symmetrischer Bauwerke im Bereich transkritischer Reynoldszahlen, Mitt. Nr. 71-2, Tech.-wissensch. Mitt., Institut fur Konstr. Ing.-ban, Ruhr-Universitat Bochum, West Germany.
  13. Niemann, H.J. and Holscher, N. (1990), "A review of recent experiments on the flow past circular cylinders", J. Wind Eng. Ind. Aerod., 33(1-2), 197-209. https://doi.org/10.1016/0167-6105(90)90035-B
  14. Niemann, H.J. and Propper, H. (1975, 1976), "Some properties of fluctuating wind pressures on a full-scale cooling tower", J. Ind. Aerod., 1, 349-359.
  15. Niemann, H.J. and Ruhwedel, J. (1980), "Full-scale and model tests on wind-induced, static and dynamic stresses in cooling tower shells", Eng. Struct., 2, 81-89. https://doi.org/10.1016/0141-0296(80)90034-6
  16. Pan, T., Zhao, L., Cao, S.Y., Ge, Y.J. and Ozono, S. (2011), "Analysis of aerodynamic load effect on thin plate section in multiple fan active control wind tunnel", Procedia Eng., 14, 2481-2488. https://doi.org/10.1016/j.proeng.2011.07.312
  17. Pirner, M. (1982), "Wind pressure fluctuations on a cooling tower", J. Wind Eng. Ind. Aerod., 10, 343-360. https://doi.org/10.1016/0167-6105(82)90006-X
  18. Qiu, Y., Sun, Y., Wu, Y. and Tamura, Y. (2014a), "Effects of splitter plates and Reynolds number on the aerodynamic loads acting on a circular cylinder", J. Wind Eng. Ind. Aerod., 127, 40-50. https://doi.org/10.1016/j.jweia.2014.02.003
  19. Qiu, Y., Sun, Y., Wu, Y. and Tamura, Y. (2014b), "Modeling the mean wind loads on cylindrical roofs with consideration of the Reynolds number effect in uniform flow with low turbulence", J. Wind Eng. Ind. Aerod., 129, 11-21. https://doi.org/10.1016/j.jweia.2014.02.011
  20. Roshko, A. (1961), "Experiments on the flow past a circular cylinder at very high Reynolds number", J. Fluid Mech., 10(3), 345-356. https://doi.org/10.1017/S0022112061000950
  21. Ruscheweyh, H. (1975/1976), "Wind loadings on hyperbolic natural draft cooling towers", J. Ind. Aerod., 1, 335-340.
  22. Sollenberger, N.J. and Scanlan, R.H. (1974), "Pressure-difference measurements across the shell of a full-scale natural draft cooling tower", Proceedings of the Symposium on Full-scale Measurements of Wind Effects, University of Western Ontario, Canada.
  23. Sun, T. and Zhou, L. (1983), "Wind pressure distribution around a ribless hyperbolic cooling tower", J. Wind Eng. Ind. Aerod., 14, 181-192. https://doi.org/10.1016/0167-6105(83)90021-1
  24. Wang, X. and Gu, M. (2015), "Experimental investigation of Reynolds number effects on 2D rectangular prisms with various side ratios and rounded corners", Wind Struct., 21(2), 183-202. https://doi.org/10.12989/was.2015.21.2.183
  25. Zhao, L., Cheng, X., Dong, R. and Ge, Y. (2012), "Investigation of surface roughness and its influence to flow dynamic characteristics of hyperbolic cooling tower", Proceedings of the 6th International Symposium on Cooling Towers, Cologne, Germany.

피인용 문헌

  1. Aerodynamics of nominally circular cylinders: A review of experimental results for Civil Engineering applications vol.137, 2017, https://doi.org/10.1016/j.engstruct.2017.01.023
  2. Effects of free-stream turbulence on wind loads on a full-scale large cooling tower 2018, https://doi.org/10.1177/1369433217747404
  3. Characteristics of wind loading on internal surface and its effect on wind-induced responses of a super-large natural-draught cooling tower vol.29, pp.4, 2017, https://doi.org/10.12989/was.2019.29.4.235
  4. Numerical modeling of flow around a heated cylinder with a rough surface vol.313, pp.None, 2017, https://doi.org/10.1051/matecconf/202031300046
  5. High-Reynolds-number effects simulations for wind effects on a cooling tower model in a wind tunnel based on a statistical approach vol.43, pp.2, 2021, https://doi.org/10.1007/s40430-021-02816-w