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<p>The present study is carried out to find the influence of various composite geometrical configurations along the height of a corner recessed square tall building considering wind flow around the buildings from 0 to 90° due to the symmetry in both plan axes. A series of numerical analyses have been performed using Computational Fluid Dynamics in the ANSYS-FLUENT module to find the mean pressure coefficient at various building faces. Two orthogonal wind force components (along and across directions) are evaluated using LES turbulence model. The length scale is considered 1:300 for preparing different building models. The modelling of dynamic wind forces has been carried out in SAP2000 to investigate the power spectral density of displacements and accelerations in along and across-wind directions. The results are presented graphically and validated against international standards and previously published literature. The investigation reveals that corner recessing in square tall buildings significantly reduces wind-induced responses such as displacements and accelerations, which are critical for occupant comfort.</p>

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Effect of varying cross-sectional height ratio on a corner-recessed square tall building under moderate wind environment

  • 期刊论文

  • 发表日期：

    2025年8月23日

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  • Arghyadip Das,
  • Sujit Kumar Dalui

摘要

The present study is carried out to find the influence of various composite geometrical configurations along the height of a corner recessed square tall building considering wind flow around the buildings from 0 to 90° due to the symmetry in both plan axes. A series of numerical analyses have been performed using Computational Fluid Dynamics in the ANSYS-FLUENT module to find the mean pressure coefficient at various building faces. Two orthogonal wind force components (along and across directions) are evaluated using LES turbulence model. The length scale is considered 1:300 for preparing different building models. The modelling of dynamic wind forces has been carried out in SAP2000 to investigate the power spectral density of displacements and accelerations in along and across-wind directions. The results are presented graphically and validated against international standards and previously published literature. The investigation reveals that corner recessing in square tall buildings significantly reduces wind-induced responses such as displacements and accelerations, which are critical for occupant comfort.