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The aim of the study is to utilize computational fluid dynamics (CFD) modeling to estimate the aerodynamic coefficient of a rectangular-shaped tall building aerodynamically modified for terrain type III at different angles of attack (AOA). The prototype is 180 m long, and the computational domain was scaled up at 1:300. The shape of the building was modified by chamfered corners and corner cuts. Calculation of pressure coefficient (CP) and force coefficient (CF) and moment coefficient (CM) on each face of a high-building for wind incidence angles ranging from 0 to 90° with an interval of 30° using Reynolds-averaged Navier–Stokes method (RANS) k-epsilon turbulence model in CFD. Grid convergence research is performed to increase the accuracy of the results by using an extremely small meshing of the computational domain. Numerical analysis is also used to obtain the velocity and pressure variations at each face. The validation of the turbulence model is carried out by the Commonwealth Advisory Aeronautical Research Council (CAARC) building. However, in most instances, those modified corner faces draw more pressure than unmodified sharp-cornered structures. This emphasizes that cladding design must be approached with caution.

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Forecasting of Aerodynamic Coefficient on Two Identical Tall Building for Various Wind Incident Angle by CFD

  • 会议论文

  • 发表日期：

    2025年

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  • Himanshoo Verma,
  • R. S. Sonparote

摘要

The aim of the study is to utilize computational fluid dynamics (CFD) modeling to estimate the aerodynamic coefficient of a rectangular-shaped tall building aerodynamically modified for terrain type III at different angles of attack (AOA). The prototype is 180 m long, and the computational domain was scaled up at 1:300. The shape of the building was modified by chamfered corners and corner cuts. Calculation of pressure coefficient (CP) and force coefficient (CF) and moment coefficient (CM) on each face of a high-building for wind incidence angles ranging from 0 to 90° with an interval of 30° using Reynolds-averaged Navier–Stokes method (RANS) k-epsilon turbulence model in CFD. Grid convergence research is performed to increase the accuracy of the results by using an extremely small meshing of the computational domain. Numerical analysis is also used to obtain the velocity and pressure variations at each face. The validation of the turbulence model is carried out by the Commonwealth Advisory Aeronautical Research Council (CAARC) building. However, in most instances, those modified corner faces draw more pressure than unmodified sharp-cornered structures. This emphasizes that cladding design must be approached with caution.