# Design and acoustic characterization of a test bench for aeroacoustic studies under controlled turbulent flow

## TL;DR

Researchers designed a test bench to study how wind interacts with building materials to produce noise, using controlled conditions and standardized methods.

## Contribution

A reproducible experimental setup for aeroacoustic studies under controlled turbulent flow is introduced.

## Key findings

- The test bench was validated using standardized acoustic measurements.
- A multi-stage protocol was implemented for material testing and noise mapping.
- The framework supports future investigations of wind-induced noise in architectural components.

## Abstract

Aeroacoustic phenomena generated by wind–structure interaction have gained increasing relevance due to the widespread use of lightweight and permeable façade elements. Several studies have shown that such configurations may emit tonal noise, yet their prediction and mitigation remain challenging. To address this, a dedicated experimental facility was developed to study, under controlled conditions, the coupling between the flow field and the acoustic field.

The test bench was designed following aerodynamic similarity criteria and theoretical references on turbulent jets. Material selection was supported by absorption and transmission-loss measurements using a Kundt tube according to ISO 10534-2:1998 (Reaffirmed 2021) [1], while the acoustic characterization of the facility was conducted following ISO 3744:2010 [2]. This article presents a validated and reproducible experimental methodology intended to support future investigations of wind-induced noise in architectural and structural components.•Design of a controlled aeroacoustic test bench verified through standardized acoustic measurements.•Implementation of a multi-stage characterization protocol: material testing, background-noise mapping, and vibration analysis.•A reproducible framework for flow–acoustic coupling experiments on façade elements under controlled turbulent flow.

Design of a controlled aeroacoustic test bench verified through standardized acoustic measurements.

Implementation of a multi-stage characterization protocol: material testing, background-noise mapping, and vibration analysis.

A reproducible framework for flow–acoustic coupling experiments on façade elements under controlled turbulent flow.

Image, graphical abstract