Lattice-Boltzmann acoustic liner impedance dataset, single-tone excitation — overview / collection record for supporting data for npj Acoustics 2, 6 (2026)

This is the overview (umbrella) record for an 8-part Zenodo collection containing the single-tone ('SingleT') excitation lattice-Boltzmann simulation results supporting: Avallone, F., Khedr, A., Paduano, A., Scarano, F., Meirelles, L. & Cordioli, J. "On the relevance of facesheet orifice geometry to acoustic liner impedance", npj Acoustics 2, 6 (2026). https://doi.org/10.1038/s44384-026-00044-x This record does not itself contain data files. The 34 simulation cases (four facesheet orifice geometries — Baseline, Sharp, ChamferDouble, ChamferTop — each run at 800, 1000, 1400 and 2000 Hz single-tone excitation and 130/145 dB peak SPL, plus two mesh-resolution sensitivity variants) are split across eight linked child records, one per orifice-geometry / SPL combination: Baseline, 130 dB (4 cases, ~42.0 GB): https://doi.org/10.5281/zenodo.21370413 Baseline, 145 dB (6 cases, ~80.0 GB): https://doi.org/10.5281/zenodo.21370415 Sharp, 130 dB (4 cases, ~42.0 GB): https://doi.org/10.5281/zenodo.21370420 Sharp, 145 dB (4 cases, ~42.0 GB): https://doi.org/10.5281/zenodo.21370422 ChamferDouble, 130 dB (4 cases, ~42.0 GB): https://doi.org/10.5281/zenodo.21370424 ChamferDouble, 145 dB (4 cases, ~42.0 GB): https://doi.org/10.5281/zenodo.21370426 ChamferTop, 130 dB (4 cases, ~42.0 GB): https://doi.org/10.5281/zenodo.21370428 ChamferTop, 145 dB (4 cases, ~42.0 GB): https://doi.org/10.5281/zenodo.21370430 Each child record contains, per case, monitoring-plane surface fields (density, velocity, static pressure over the mesh) and single-point probe time series, all in open-format HDF5 with physical (SI) units. See the metadata.md file in each child record for the full case table and file/variable reference. AcknowledgementsThe work of F. Avallone, A. Paduano and F. Scarano is co-funded by the European Union (ERC, LINING, 101075903). Views and opinions expressed are, however, those of the author(s) only and do not necessarily reflect those of the European Union or the European Research Council. Neither the European Union nor the granting authority can be held responsiblefor them. The work is partially supported by the AeroAcoustics Research Consortium (AARC), a government-industry partnership supporting pre-competitive research for aircraft noise reduction. L. Meirelles acknowledges scholarship funding from CNPq (168115/2023-9). The authors acknowledge Fundaҫão CERTI (Brazil) for their contributions to the metrological aspects of this research. The authors thankD. Casalino for the discussions and suggestions about the numerical setup