Wind and Structures

  • 제13권4호
  • /
  • Pages.363-374
  • /
  • 2010
  • /
  • 1226-6116(pISSN)
  • /
  • 1598-6225(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Scaling methods for wind tunnel modelling of building internal pressures induced through openings

  • Sharma, Rajnish N. (Department of Mechanical Engineering, The University of Auckland) ;
  • Mason, Simon (Department of Mechanical Engineering, The University of Auckland) ;
  • Driver, Philip (Department of Mechanical Engineering, The University of Auckland)
  • 투고 : 2009.11.17
  • 심사 : 2010.02.25
  • 발행 : 2010.07.25
⟨ 이전 논문 다음 논문 ⟩

초록

Appropriate scaling methods for wind tunnel modelling of building internal pressures induced through a dominant opening were investigated. In particular, model cavity volume distortion and geometric scaling of the opening details were studied. It was found that while model volume distortion may be used to scale down buildings for wind tunnel studies on internal pressure, the implementation of the added volume must be done with care so as not to create two cavity resonance systems. Incorrect scaling of opening details was also found to generate incorrect internal pressure characteristics. Furthermore, the effective air slug or jet was found to be longer when the opening was near a floor or sidewall as evidenced by somewhat lower Helmholtz frequencies. It is also shown that tangential flow excitation of Helmholtz resonance for off-centre openings in normal flow is also possible.

키워드

참고문헌

  1. Ginger, J.D., Holmes, J.D. and Kopp, G.A. (2008), "Effect of building volume and opening size on fluctuating internal pressure", Wind Struct., 11(5), 361-376. https://doi.org/10.12989/was.2008.11.5.361
  2. Holmes, J.D. (1980), "Mean and fluctuating pressures induced by wind", Proceedings of the 5th International Conference on Wind Engineering, Colorado State University, Pergamon, Oxford, 1, 435-450.
  3. Holmes, J.D. (2006), "Volume and frequency scaling for internal pressures in wind tunnel tests", Proceedings of the 13th Australasian Wind Engineering Society Workshop, Queenstown NZ, February
  4. Kinsler, L.E., Frey, A.R., Coppens, A.B. and Sanders, J.V. (2000), Fundamentals of Acoustics (4th edition), John Wiley & Sons Inc.
  5. Levitan, M.L. and Mehta, K.C. (1992a), "Texas tech field experiments for wind loads Part I: building and pressure measuring system", J. Wind Eng. Ind. Aerod., 43(1-3), 1565-1576. https://doi.org/10.1016/0167-6105(92)90372-H
  6. Levitan, M.L. and Mehta, K.C. (1992b), "Texas tech field experiments for wind loads Part II : meteorological instrumentation and terrain parameters", J. Wind Eng. Ind. Aerod., 43(1-3), 1577-1588. https://doi.org/10.1016/0167-6105(92)90373-I
  7. Liu, H. and Rhee, K.H. (1986), "Helmholtz oscillation in building models", J. Wind Eng. Ind. Aerod., 24(2), 95-115. https://doi.org/10.1016/0167-6105(86)90001-2
  8. Liu, H. and Saathoff, P.J. (1981), "Building internal pressure: sudden change", J. Eng. Mech. Div., 107(EM2), 309-321.
  9. Oh, J.H., Kopp, G.A. and Inculet, D.R. (2007), "The UWO contribution to the NIST aerodynamic database for wind loads on low buildings: Part 3. internal pressures", J. Wind Eng. Ind. Aerod., 95(8), 755-779. https://doi.org/10.1016/j.jweia.2007.01.007
  10. Sharma, R.N. (1996), The Influence of Internal Pressure on Wind Loading under Tropical Cyclone Conditions, PhD Thesis, Mechanical Engineering Department, The University of Auckland.
  11. Sharma, R.N. (2003), "Internal pressure dynamics with internal partitioning" Proceedings of the 11th International Conference on Wind Engineering, Texas Tech University, Lubbock, Texas, USA, 2, 705-712.
  12. Sharma, R.N. and Richards, P.J. (1997a), "Computational modelling of the transient response of building internal pressure to a sudden opening", J. Wind Eng. Ind. Aerod., 72, 149-161. https://doi.org/10.1016/S0167-6105(97)00244-4
  13. Sharma, R.N. and Richards, P.J. (1997b), "Computational modelling in the prediction of building internal pressure gain functions", J. Wind Eng. Ind. Aerod., 67-68, 815-825. https://doi.org/10.1016/S0167-6105(97)00121-9
  14. Sharma, R.N. and Richards, P.J. (2003), "The influence of Helmholtz resonance on internal pressures in a lowrise building", J. Wind Eng. Ind. Aerod., 91(6), 807-828. https://doi.org/10.1016/S0167-6105(03)00005-9
  15. Standards Australia / Standards New Zealand (2002), Structural design actions. Part 2: Wind actions, Australian/ New Zealand Standard AS/NZS1170.2:2002. Standards Australia, Sydney, N.S.W. and Standards New Zealand, Wellington.
  16. Stathopoulos, T. and Luchian, H.D. (1989), "Transient wind-induced internal pressures", J. Eng. Mech.-ASCE, 115(7), 1501-1514. https://doi.org/10.1061/(ASCE)0733-9399(1989)115:7(1501)
  17. Vickery, B.J. (1994), "Internal pressures and interactions with the building envelope", J. Wind Eng. Ind. Aerod., 53(1-2), 125-144. https://doi.org/10.1016/0167-6105(94)90022-1
  18. Vickery, B.J. and Bloxham, C. (1992), "Internal pressure dynamics with a dominant opening", J. Wind Eng. Ind. Aerod., 41(1-3), 193-204. https://doi.org/10.1016/0167-6105(92)90409-4

피인용 문헌

  1. Internal and net roof pressures for a dynamically flexible building with a dominant wall opening vol.16, pp.1, 2013, https://doi.org/10.12989/was.2013.16.1.093
  2. Internal pressure in a building with multiple dominant openings in a single wall: Comparison with the single opening situation vol.107-108, 2012, https://doi.org/10.1016/j.jweia.2012.04.023
  3. Wind tunnel study on vortex-induced Helmholtz resonance excited by oblique flow vol.74, 2016, https://doi.org/10.1016/j.expthermflusci.2015.12.008
  4. Internal pressures – The dominant windward opening case – A review vol.100, pp.1, 2012, https://doi.org/10.1016/j.jweia.2011.11.005
  5. Wind-driven natural ventilation in a low-rise building: A Boundary Layer Wind Tunnel study vol.59, 2013, https://doi.org/10.1016/j.buildenv.2012.08.026
  6. Internal pressure dynamics of a leaky and quasi-statically flexible building with a dominant opening vol.16, pp.1, 2013, https://doi.org/10.12989/was.2013.16.1.061
  7. Internal pressure in a low-rise building with existing envelope openings and sudden breaching vol.16, pp.1, 2013, https://doi.org/10.12989/was.2013.16.1.025
  8. Effect of wind-induced internal pressure on local frame forces of low-rise buildings vol.143, pp.None, 2010, https://doi.org/10.1016/j.engstruct.2017.04.039
  9. Wind tunnel study on fluctuating internal pressure of open building induced by tangential flow vol.32, pp.2, 2010, https://doi.org/10.12989/was.2021.32.2.105
  10. Experimental and theoretical study on the internal pressure induced by the transient local failure of low-rise building roofs vol.24, pp.14, 2010, https://doi.org/10.1177/13694332211022069