DOI QR코드

DOI QR Code

Large eddy simulation of the tornado-structure interaction to determine structural loadings

  • Panneer Selvam, R. (Department of Civil Engineering, University of Arkansas) ;
  • Millett, Paul C. (Department of Civil Engineering, University of Arkansas)
  • 투고 : 2003.09.18
  • 심사 : 2004.11.22
  • 발행 : 2005.02.25

초록

A tornado changes its wind speed and direction rapidly; therefore, it is difficult to study the effects of a tornado on buildings in a wind tunnel. The status of the tornado-structure interaction and various models of the tornado wind field found in literature are surveyed. Three dimensional computer modeling work using the turbulence model based on large eddy simulation is presented. The effect of a tornado on a cubic building is considered for this study. The Navier-Stokes (NS) equations are approximated by finite difference method, and solved by an semi-implicit procedure. The force coefficients are plotted in time to study the effect of the Rankine combined vortex model. The tornado is made to translate at a $0^{\circ}$ and $45^{\circ}$ angle, and the grid resolution is refined. Some flow visualizations are also reported to understand the flow behavior around the cube.

키워드

참고문헌

  1. Bienkiewicz, B. and Dudhia, P. (1993), "Physical modeling of tornado-like vortex and tornado effects on building loading", Seventh US Conf. on Wind Engineering, UCLA, CA, June 27-30, 95-104.
  2. Dutta, P.K., Ghosh, A.K. and Agarwal, B.L. (2002), "Dynamic response of structures subjected to tornado loads by FEM", J. Wind Eng. Ind. Aerodyn., 90, 55-69. https://doi.org/10.1016/S0167-6105(01)00115-5
  3. Jischke, M.C. and Light, B.D. (1983), "Laboratory simulation of tornadic wind loads on a rectangular model structure", J. Wind Eng. Ind. Aerodyn., 13, 371-382. https://doi.org/10.1016/0167-6105(83)90157-5
  4. Kuo, H.L. (1971), "Axisymmetric flow in the boundary layer of a maintained vortex", J. the Atmospheric Sciences, 28(1), 20-41. https://doi.org/10.1175/1520-0469(1971)028<0020:AFITBL>2.0.CO;2
  5. Lewellen, W.S. (1976), "Theoretical models of the tornado vortex", Proc. the Symposium on Tornadoes, Edited by: R.E. Peterson, Texas Tech University, Lubbock, June 22-24, 107-143.
  6. McDonald, J.R. and Selvam, R.P. (1985), Tornado forces on building using the boundary element method, Proc.: Fifth U.S. Nat. Conf. on Wind Engineering, Texas Tech University, Lubbock, TX.
  7. Mehta, K.C., Minor, J.E. and McDonald, J.R. (1976), "Wind speed analysis of April 3-4 tornadoes", J. Struct. Div., ASCE, 102(ST9), 1709-1724.
  8. Millett, P.C. (2003), Computer Modeling of the Tornado-Structure Interaction: Investigation of Structural Loading on a Cubic Building, Master's Thesis, University of Arkansas, Fayetteville, AR.
  9. Selvam, R.P. (1992), "Computation of pressures on Texas tech building", J. Wind Eng. Ind. Aerodyn., 43, 1619-1627. https://doi.org/10.1016/0167-6105(92)90572-R
  10. Selvam, R.P. and Millett, P.C. (2003), "Computer modeling of the tornado forces on buildings", Wind and Struct., An Int. J., 6(3), 209-220. https://doi.org/10.12989/was.2003.6.3.209
  11. Selvam, R.P. (1993), "Computer modeling of tornado forces on buildings", Proc.: The 7th US Nat. Conf. on Wind Engineering, Edited by: Gary C. Hart, Los Angeles, June 27-30, 605-613.
  12. Selvam, R.P. (2002a), Computer modeling of tornado forces on buildings, in Proc. of the Second Int. Symp. on Advances in Wind & Structures, C.K. Choi et al. (Ed.), Techno-Press, Korea, 2002, 105-114.
  13. Selvam, R.P., Roy, U.K., Jung, Y. and Mehta, K.C. (2002b), "Investigation of tornado forces on 2D cylinder using computer modeling", in Wind Engineering, Proc. of NCWE 2002, Edited by: K. Kumar, Phoenix Publishing House, New Delhi, pp. 342-353.
  14. Simiu, E. and Scanlan, R.H. (1978), Wind Effects on Structures, John Wiley & Sons, New York.
  15. Selvam, R.P. (1998), "Computational procedures in grid based computational bridge aerodynamics", in Bridge Aerodynamics, Larsen, A. and Esdahl (eds), Balkema, Rotterdam, pp. 327-336.
  16. Selvam, R.P. and Qu, Z. (2000), "Adaptive hp-finite element method for wind engineering", Proc.: 3rd Int. Symp. on Computational Wind Engineering, 61-64, University of Birmingham, UK, Sep. 4-7, Also accepted for J. Wind and Struct..
  17. Wen, Y.K. and Chu, S.L. (1973), "Tornado risks and design wind speed", J. Struct. Div., ASCE, 99, 2409-2421.
  18. Wilson, T. (1977), Tornado Structure Interaction: A Numerical Simulation, Report: UCRL-52207, Distribution Category: UC-11, 80, Lawrence Livermore Laboratory, University of California, Livermore.

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