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Research data for "Multi-tortuous acoustic materials"

Version 1.0

Zieliński, Tomasz, 2026, "Research data for "Multi-tortuous acoustic materials"", https://doi.org/10.18150/OELPHX, RepOD, V1

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Description

This dataset contains research data used to prepare the publication:

T.G. Zieliński, M.-A. Galland, "Multi-tortuous acoustic materials", Journal of Sound and Vibration 621 (2026) 119433. https://10.1016/j.jsv.2025.119433


This research was supported by: (1) (Polish) National Science Centre (NCN), Poland, under grant agreement 2021/41/B/ST8/04492; (2) LABEX CeLyA (ANR-10-LABX-0060) of Universite de Lyon, within the program "Investissements d'Avenir" (ANR-16-IDEX-0005) operated by the French National Research Agency (ANR).


All data are provided in columns in ASCII (.txt) files. These files contain data on the sound absorption coefficient measured and calculated for the proposed multi-tortuous material.


The measurement results were obtained using a Bruel&Kjaer impedance tube measurement kit. All measurement data are contained in a single file with a name starting with "EXPERIMENT". The first column (labeled "Freq") contains the frequencies, while the subsequent columns contain the sound absorption values ​​at the corresponding frequency measured for various sample configurations in the impedance tube. These configurations are indicated by the each column label, namely:

"0mm-Taped" - the back side of the 3D printed material sample was taped and set on a rigid wall;

"0mm" - the back side of the 3D printed sample was set directly on a rigid wall;

"5mm" - there was a 5mm air gap between the rigid wall and the back of the 3D printed sample;

"10mm" - there was a 10mm air gap between the rigid wall and the back of the 3D printed sample.


The file with a name beginning with "COMSOL-DNS" contains the results of a Direct Numerical Simulation performed using COMSOL Multiphysics software. This is the sound absorption coefficient calculated in the considered frequency range for the designed multi-tortuous material.


The file with a name beginning with "MATLAB-MPEF" contains the results obtained using the proposed Multi-Pressure-Equivalent-Fluid (MPEF) model. This is the sound absorption coefficient calculated using MATLAB in the considered frequency range for the designed multi-tortuous material.

Subject
Engineering; Physics
Keyword

Multi-resonant acoustic materials, Disconnected pore networks, Multi-pressure model, Tortuosity-based design, Sound absorption

Related Publication

T.G. Zieliński, M.-A. Galland, "Multi-tortuous acoustic materials",
Journal of Sound and Vibration 621 (2026) 119433. https://doi.org/10.1016/j.jsv.2025.119433 doi: 10.1016/j.jsv.2025.119433

CC0 Creative Commons Zero 1.0 CC0 Creative Commons Zero 1.0

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COMSOL-DNS-SoundAbsorption-Nets125+Gap10.txt
Plain Text - 10.5 KB - Mar 31, 2026 - 0 Downloads
MD5: f6960a519ed313be83ba96f9b0e88c81
License: CC0 Creative Commons Zero 1.0
sound absorption calculated numerically for the designed multi-tortuous material from Direct Numerical Simulation
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EXPERIMENT-SoundAbsorption-Nets125.txt
Plain Text - 68.1 KB - Mar 31, 2026 - 0 Downloads
MD5: 4c5bbcf58d025a3fdce8b9e32cc342d3
License: CC0 Creative Commons Zero 1.0
sound absorption measured for the 3D printed sample of the multi-tortuous material
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MATLAB-MPEF-SoundAbsorption-Nets125+Gap10mm.txt
Plain Text - 19.3 KB - Mar 31, 2026 - 0 Downloads
MD5: 76ed4a68ef95b26b128f185d6a9eb895
License: CC0 Creative Commons Zero 1.0
sound absorption calculated for the designed multi-tortuous material using the MPEF model
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