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Background <p>The vibrations induced due to wind on the roofs of low-rise structures responsible for the pressure variations which depends on wind characteristics, structural properties and aerodynamic interactions.</p> Purpose <p>The roof is an important structural element of low-rise structures that are highly vulnerable to wind loads.&#xa0;Different types of roof shapes have been installed for various purposes like railway platforms, restaurants, industrial buildings, etc.&#xa0;The main objective of this research is to predict the aerodynamic coefficients over various roof shapes.</p> Methods <p>In the present research, cylindrical roof, hip roof, mono-slope roof and dome roof were considered for the&#xa0;prediction of aerodynamically induced parameters such as pressure contours, pressure coefficients, force coefficients,&#xa0;drag and lift coefficients using CFD simulations. The building models have been subjected to different wind prevalence&#xa0;angles 0° to 90° for cylindrical and hip roof, 0° to 180° for mono-slope roof and 0° &amp; 45° for dome roof, depending upon their axis of symmetry.</p> Results <p>The pressure coefficients obtained from the simulation have been compared with previous research and wind&#xa0;standards of various nations to validate the CFD technique. CFD analysis yields structurally comparable results to various&#xa0;wind standards and wind tunnel-based methods, as evidenced by the presented data.</p> Conclusion <p>The angle of wind attack and roof shape play a vital role in influencing the wind-induced damage on the&#xa0;roofs of low-rise structures, which shall be considered by the engineers and practitioners while designing the low-rise&#xa0;structures with various roof forms.</p>

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Boundary-Layer Aerodynamic Prediction over Various Roof Shapes of Low-Rise Structures

  • 期刊论文

  • 发表日期：

    2025年10月4日

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  • Deepak Sharma,
  • Shilpa Pal,
  • Ritu Raj

摘要

Background

The vibrations induced due to wind on the roofs of low-rise structures responsible for the pressure variations which depends on wind characteristics, structural properties and aerodynamic interactions.

Purpose

The roof is an important structural element of low-rise structures that are highly vulnerable to wind loads. Different types of roof shapes have been installed for various purposes like railway platforms, restaurants, industrial buildings, etc. The main objective of this research is to predict the aerodynamic coefficients over various roof shapes.

Methods

In the present research, cylindrical roof, hip roof, mono-slope roof and dome roof were considered for the prediction of aerodynamically induced parameters such as pressure contours, pressure coefficients, force coefficients, drag and lift coefficients using CFD simulations. The building models have been subjected to different wind prevalence angles 0° to 90° for cylindrical and hip roof, 0° to 180° for mono-slope roof and 0° & 45° for dome roof, depending upon their axis of symmetry.

Results

The pressure coefficients obtained from the simulation have been compared with previous research and wind standards of various nations to validate the CFD technique. CFD analysis yields structurally comparable results to various wind standards and wind tunnel-based methods, as evidenced by the presented data.

Conclusion

The angle of wind attack and roof shape play a vital role in influencing the wind-induced damage on the roofs of low-rise structures, which shall be considered by the engineers and practitioners while designing the low-rise structures with various roof forms.