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Instytut Podstawowych Problemów Techniki Polskiej Akademii Nauk

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Research data for: Extremely tortuous sound absorbers with labyrinthine channels in non-porous and microporous solid skeletons

Version 1.0

Zieliński, Tomasz, 2024, "Research data for: Extremely tortuous sound absorbers with labyrinthine channels in non-porous and microporous solid skeletons", https://doi.org/10.18150/7CVYXH, RepOD, V1

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Description

This dataset contains research data used to prepare the publication:

Tomasz G. Zieliński, Kamil C. Opiela, Nicolas Dauchez, Thomas Boutin, Marie-Annick Galland, Keith Attenborough, "Extremely tortuous sound absorbers with labyrinthine channels in non-porous and microporous solid skeletons". Applied Acoustics, 217 (2024), 109816 (13 pages). DOI: 10.1016/j.apacoust.2023.109816

This research has been supported by the National Science Centre (NCN), Poland, under grant agreement 2021/41/B/ST8/04492.

All data are provided in columns in ASCII (.txt) files.

Files with names starting with the word "Calculations" give the results of numerical predictions of sound absorption for panels with single or double porosity. In the file names, this is marked as "SinglePorosity" and "DoublePorosity", respectively. These results were obtained using COMSOL Multiphysics and MATLAB environments.

Files with names starting with the word "Experiment" give the results of sound absorption measuremnts for 3D printed panel samples additively manufactured in the SLA or BJP technology. In the file names, this is marked as "SampleSLA" and "SampleBJP", respectively. These results were obtained using a Bruel&Kjaer impedance tube measurement kit.

"H16mm" in the file name means that the panel (sample) thickness is 16mm.

"H25mm" in the file name means that the panel (sample) thickness is 25mm.

"H32mm" in the file name means that the panel (sample) thickness is 32mm.

"T36" in the file name means that the material tortusoity is 36.

"T38" in the file name means that the material tortusoity is 38.

The first column in each file is labeled "Freq" and lists the frequencies. The following columns provide the values of the sound absorption coefficient calculated for single- or double-porosity panels or measured for 3D printed samples. The labels of these columns represent the air gap between the panel/sample and the rigid wall. The "0mm" label means that the material/sample was set directly on the rigid wall.

Subject

Engineering; Physics

Keyword

sound absorption, extreme tortuosity, double porosity, acoustic composites, additive manufacturing

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License

CC0 Creative Commons Zero 1.0

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1 to 9 of 9 Files

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		Calculations_H16mm_T38_DoublePorosity.txt Plain Text - 14.0 KB - Sep 12, 2024 - 1 Download MD5: 0ad4e3e59363f388e522999d0d20d788 License: CC0 Creative Commons Zero 1.0 Sound absorption calculated for double-porosity panel, thickness 16mm, tortuosity 38	Preview Download
		Calculations_H16mm_T38_SinglePorosity.txt Plain Text - 14.0 KB - Sep 12, 2024 - 0 Downloads MD5: a8f6ff7526523dd893141b2d111eaf4b License: CC0 Creative Commons Zero 1.0 Sound absorption calculated for single-porosity panel, thickness 16mm, tortuosity 38	Preview Download
		Calculations_H25mm_T36_DoublePorosity.txt Plain Text - 16.3 KB - Sep 12, 2024 - 0 Downloads MD5: d896acacf3b019a24207b868bdf805b2 License: CC0 Creative Commons Zero 1.0 Sound absorption calculated for double-porosity panel, thickness 25mm, tortuosity 36	Preview Download
		Calculations_H25mm_T36_SinglePorosity.txt Plain Text - 16.3 KB - Sep 12, 2024 - 0 Downloads MD5: 8f9e42005d3db82d456dec5028cf45b1 License: CC0 Creative Commons Zero 1.0 Sound absorption calculated for single-porosity panel, thickness 25mm, tortuosity 36	Preview Download
		Calculations_H32mm_T38_DoublePorosity.txt Plain Text - 14.0 KB - Sep 12, 2024 - 0 Downloads MD5: e43809ec839b632dfc29d6c5ceccc836 License: CC0 Creative Commons Zero 1.0 Sound absorption calculated for double-porosity panel, thickness 32mm, tortuosity 38	Preview Download
		Calculations_H32mm_T38_SinglePorosity.txt Plain Text - 14.0 KB - Sep 12, 2024 - 0 Downloads MD5: ff9469951ba2f8db5c907a70a21cff68 License: CC0 Creative Commons Zero 1.0 Sound absorption calculated for single-porosity panel, thickness 32mm, tortuosity 38	Preview Download
		Experiment_H16mm_T38_SampleSLA.txt Plain Text - 79.6 KB - Sep 12, 2024 - 0 Downloads MD5: 7d99bad0df7c66c0b8e542ef0663d3d5 License: CC0 Creative Commons Zero 1.0 Sound absorption measured for SLA sample, thickness 16mm, tortuosity 38	Preview Download
		Experiment_H25mm_T36_SampleBJP.txt Plain Text - 54.8 KB - Sep 12, 2024 - 0 Downloads MD5: baa2508457dc2eab04d9f8ad08ed8f58 License: CC0 Creative Commons Zero 1.0 Sound absorption measured for BJP sample, thickness 25mm, tortuosity 36	Preview Download
		Experiment_H32mm_T38_SampleSLA.txt Plain Text - 19.6 KB - Sep 12, 2024 - 0 Downloads MD5: c03e5b083330e80098dde289aafdeca8 License: CC0 Creative Commons Zero 1.0 Sound absorption measured for SLA sample, thickness 32mm, tortuosity 38	Preview Download

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