Year: 2025
Type: conference-paper
Abstract: The concept of self-shielding windows is introduced as an innovative approach to mitigate sound exposure in urban environments at the most exposed façade.Unlike conventional windows aligned parallel to the building façade, this study examines the sound pressure level exposure at windows oriented obliquely toward the sky.This configuration forces sound from street-level sources to diffract around convex elements before reaching the windows, resulting in reduced sound exposure.Additionally, these façade geometries promote a diffuse sound field within the street canyon, diminishing the influence of specular reflections from opposing façades.However, reflections and scattering from nearby elements may offset these benefits by increasing exposure levels.To elucidate the significance of these physical phenomena, scale model experiments were conducted with simplified triangular façade elements at varying angles and story heights.Especially at the higher stories, significant noise reduction was measured.The experimental findings were further validated by 3D full-wave numerical simulations, reinforcing confidence in both the accuracy of the scale model measurements and the reliability of the numerical predictions for optimizing façade elements.
Authors: Timothy Van Renterghem, Pieter Thomas
Language: English
Topic: Noise Effects and Management
Subfield: Speech and Hearing
Field: Health Professions
Domain: Health Sciences
Open Access status: gold
OpenAlex ID: W7117304756
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