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Pressure Power Spectra of a ‘Z’ Shaped in Plan Tall Building under Transient Wind Environment

  • Structural Engineering
  • Published:
KSCE Journal of Civil Engineering Aims and scope

Abstract

This study foresees the behavior of a ‘Z’ shaped in plan tall building under transient wind storms using unsteady Reynolds-averaged Navier Stokes (URANS) Computational Fluid Dynamics (CFD) technique. Numerical simulations are carried out using ANSYS - CFX, adopting length and velocity scales of 1:300 and 1:5, respectively. Surface streamlines are presented in the article to depict the wind flow characteristics and envisage the regions and nature of flow separations and vortex generations. The flow features also facilitate visualizing the wind pressure contours on building facets. The peak pressure coefficients concerning wind angles of 0° and 90° are presented to enable the cladding design of the building. Moreover, normalized wind pressure power spectra at three different sections along the altitude are offered for 0° to 150° wind at an interval of 30°. It is observed that towards the bottom portion of the building, the peak of the power spectra usually occurs in the low-frequency values. In contrast, at the top and main body of the building, the vortex shedding energy exaggerates at comparatively high reduced frequencies..

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Acknowledgments

The authors acknowledge Research Square for posting a preprint of the manuscript with DOI: https://doi.org/10.21203/rs3.rs-1618818/v1_(Paul and Dalui, 2022b).

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Authors and Affiliations

  1. Civil Engineering Department, Central University of Jharkhand, Ranchi, 835-205, Jharkhand, India

    Rajdip Paul

  2. Civil Engineering Department, Indian Institute of Engineering Science and Technology, Shibpur, P.O.- Botanic Garden, Shalimar, West Bengal, 711103, Howrah, India

    Sujit Kumar Dalui

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Correspondence to Rajdip Paul.

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Paul, R., Dalui, S.K. Pressure Power Spectra of a ‘Z’ Shaped in Plan Tall Building under Transient Wind Environment. KSCE J Civ Eng 28, 1916–1927 (2024). https://doi.org/10.1007/s12205-024-1255-5

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  • DOI: https://doi.org/10.1007/s12205-024-1255-5

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