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Wind and Structures
  Volume 16, Number 6, June 2013 , pages 629-660
DOI: https://doi.org/10.12989/was.2013.16.6.629
 


Computational evaluation of wind loads on buildings: a review
Agerneh K. Dagnew and Girma T. Bitsuamlak

 
Abstract
    This paper reviews the current state-of-the-art in the numerical evaluation of wind loads on buildings. Important aspects of numerical modeling including (i) turbulence modeling, (ii) inflow boundary conditions, (iii) ground surface roughness, (iv) near wall treatments, and (vi) quantification of wind loads using the techniques of computational fluid dynamics (CFD) are summarized. Relative advantages of Large Eddy Simulation (LES) over Reynolds Averaged Navier-Stokes (RANS) and hybrid RANS-LES over LES are discussed based on physical realism and ease of application for wind load evaluation. Overall LES based simulations seem suitable for wind load evaluation. A need for computational wind load validations in comparison with experimental or field data is emphasized. A comparative study among numerical and experimental wind load evaluation on buildings demonstrated generally good agreements on the mean values, but more work is imperative for accurate peak design wind load evaluations. Particularly more research is needed on transient inlet boundaries and near wall modeling related issues.
 
Key Words
    wind loads; building; computational fluid dynamics; turbulence; ABL; RANS; LES; hybrid LES-RANS; and validation
 
Address
Agerneh K. Dagnew : Laboratory for Wind Engineering Research, International Hurricane Research Center/Department of Civil and Environmental Engineering, Florida International University, Miami, Florida 33174, USA
Girma T. Bitsuamlak: 2Associate Director WindEEE Research Institute, Department of Civil and Environmental Engineering, University of Western Ontario in London, Boundary Layer Wind Tunnel Laboratory Rm. 105, ON, Canada, N6A 5B9
 

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