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Numerical Investigation of the Turbulent Wind Flow Through Elevated Windbreak

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Abstract

Analysis of airflow through elevated windbreaks is presented in this paper. Permeable nets and impermeable film increases considerable wind forces on the windbreaks which is susceptible to damage during high wind. A comprehensive numerical investigation has been carried out to analyze the effects of wind on standalone elevated windbreak clad with various permeable nets and an impermeable film. The variation of airflow behavior around and through permeable nets and airflow behavior around impermeable film were also been investigated. Computational fluid dynamics techniques using Reynolds Averaged Navier–Stokes equations has been used to predict the wind force coefficient and thus wind forces on panels supporting permeable nets and impermeable film for turbulent wind flow. Elevated windbreak panels were analyzed for seven different permeable nets having various solidity ratio, specific permeability and aerodynamic resistant coefficients. The permeable nets were modelled as porous jump media obeying Forchheimer’s law and an impermeable film modelled as rigid wall.

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References

  1. J.D. Wilson, Numerical studies of flow through a windbreak. J. Wind Eng. Ind. Aerodyn. 2, 119–154 (1985)

    Article  Google Scholar 

  2. J.K. Raine, D.C. Stevenson, Wind protection by model fences in a simulated atmospheric boundary layer. J. Ind. Aerodyn. 2, 159–180 (1997)

    Article  Google Scholar 

  3. J. Gandemer, Wind shelters. J. Ind. Aerodyn. 4, 371–389 (1979)

    Article  Google Scholar 

  4. C.W. Letchford, J.D. Holmes, Wind loads on free-standing walls in turbulent boundary layer. J. Wind Eng. Ind. Aerodyn. 51, 1–27 (1994)

    Article  Google Scholar 

  5. A.P. Robertson, R.P. Hoxey, J.L. Short, W.A. Ferguson, S. Osmond, Full-scale testing to determine the wind loads on free-standing walls. J. Wind Eng. Ind. Aerodyn. 60, 123–137 (1996)

    Article  Google Scholar 

  6. C.W. Letchford, A.P. Robertson, Mean wind loading at the leading ends of free-standing walls. J. Wind Eng. Ind. Aerodyn. 79, 123–134 (1999)

    Article  Google Scholar 

  7. C.W. Letchford, Wind loads on rectangular signboards and hoardings. J. Wind Eng. Ind. Aerodyn. 89, 135–151 (2001)

    Article  Google Scholar 

  8. C. Paulotto, M. Ciampoli, G. Augusti, Wind tunnel evaluation of mean wind pressure on a frame-type signboard. J. Wind Eng. Ind. Aerodyn. 94, 397–413 (2006)

    Article  Google Scholar 

  9. D. Briassoulis, A. Mistriotis, A. Giannoulis, Wind forces on porous elevated panels. J. Wind Eng. Ind. Aerodyn. 98, 919–928 (2010)

    Article  Google Scholar 

  10. C.W. Park, S.J. Lee, The effects of a bottom gap and non-uniform porosity in a wind fence on the surface pressure of a triangular prism located behind the fence. J. Wind Eng. Ind. Aerodyn. 89, 1137–1154 (2001)

    Article  Google Scholar 

  11. H.B. Kim, S.J. Lee, The structure shear flow around a two-dimensional porous fence having a bottom gap. J. Fluids Struct. 16(3), 317–329 (2002)

    Article  Google Scholar 

  12. S. Hemming, J. Campen, D. Waaijenberg, Testing of air permeability performance of agricultural nets, in Internal Report, Agrotechnology and Food Innovations, ed. by B.V. Wageningen, U.R. Wageningen (The Netherlands, 2005)

  13. J.L. Lage, The fundamental theory of flow through permeable media from darcy to turbulence, in Transport Phenomenain Porous Media, ed. by D.B. Ingham, I. Pop (Pergamon Press, Oxford, 1998), pp. 1–311998

    Google Scholar 

  14. H. Irtaza, R.G. Beale, M.H.R. Godley, A wind-tunnel investigation into the pressure distribution around sheet-cladded scaffold. J. Wind Eng. Ind. Aerodyn. 103, 86–95 (2012)

    Article  Google Scholar 

  15. Fluent Users Guide: 18.0 (2017)

Download references

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Correspondence to Ashish Agarwal.

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Agarwal, A., Irtaza, H. Numerical Investigation of the Turbulent Wind Flow Through Elevated Windbreak. J. Inst. Eng. India Ser. A 99, 311–320 (2018). https://doi.org/10.1007/s40030-018-0301-z

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  • DOI: https://doi.org/10.1007/s40030-018-0301-z

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