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| Format: | Recurso digital |
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Zenodo
2026
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| Accès en ligne: | https://doi.org/10.5281/zenodo.18135892 |
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Table des matières:
- <p>Title</p> <p>Passive Aerodynamic Architectural Design for the Mitigation of Wind Loads Induced by Cyclones and Tropical Storms</p> <p>Introduction</p> <p>Extreme weather events, particularly cyclones and tropical storms, generate severe aerodynamic loads on the built environment, leading to structural failures and significant human and economic losses. Conventional construction approaches based on orthogonal geometries and flat surfaces promote localized pressure peaks, boundary layer separation, and intense vortex shedding.</p> <p>This study proposes an alternative approach based on passive aerodynamic architecture, aiming to reduce wind-induced loads through controlled dissipation of atmospheric flow kinetic energy, without reliance on active mechanical systems.</p> <p>Theoretical Framework</p> <p>Wind is modeled as a high-energy turbulent incompressible flow. The aerodynamic forces acting on a structure primarily depend on:</p> <p>wind velocity,</p> <p>air density,</p> <p>drag coefficient,</p> <p>and building geometry.</p> <p>Reducing the drag coefficient and limiting pressure gradients are fundamental strategies for mitigating wind-induced structural loads.</p> <p>Proposed Architectural Concept</p> <p>The proposed system integrates three core principles:</p> <p>1. Aerodynamic geometry of building envelopes</p> <p>Buildings adopt continuous curved geometries (domes, ellipsoids, ovoid profiles) to promote flow attachment and reduce flow separation. This significantly limits wake vortex formation and lowers peak dynamic pressure on façades and roofs.</p> <p>2. Passive airflow redistribution devices</p> <p>Integrated architectural components (curved deflectors, permeable screens, fixed directional fins) are strategically positioned to fragment the main flow, introduce progressive pressure losses, and convert part of the kinetic energy into controlled dissipative turbulence.</p> <p>3. Collective spatial organization</p> <p>Building layouts follow circular, helical, or density-gradient configurations, generating a progressive wind attenuation effect. Upstream structures act as primary dissipators, reducing the intensity of the incident flow for downstream zones.</p> <p>Scientific Objectives</p> <p>Reduce pressure and drag coefficients acting on structures</p> <p>Decrease mechanical stresses induced by extreme wind events</p> <p>Propose a passive, resilient housing model</p> <p>Establish a transferable conceptual framework for cyclone-prone tropical regions</p>