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Rossian, Lennart and Ewert, Roland and Delfs, Jan Werner (2018) A numerical approach to trailing edge noise reduction by porous materials. Journal of Sound and Vibration, 427, pp. 188-221. Elsevier. doi: 10.1016/j.jsv.2017.10.016. ISSN 0022-460X.
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Official URL: https://doi.org/10.1016/j.jsv.2017.10.016
Abstract
In a two-step CFD-CAA simulation framework with DLR's CAA code PIANO enhanced by the treatment for porous materials simulations of a NACA0012 airfoil with a trailing edge made of porous materials starting at 88.75% chord length were run. The beneficial influence of porous materials was shown to be in good accordance with the experimental results. Furthermore, the effect of anisotropic as well as non-uniform materials was studied. Particularly, it was found that the application of nonuniform materials, as shown in Fig. 31, yields a notable noise reduction potential.
| Item URL in elib: | https://elib.dlr.de/125644/ | ||||||||||||||||
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| Document Type: | Article | ||||||||||||||||
| Title: | A numerical approach to trailing edge noise reduction by porous materials | ||||||||||||||||
| Authors: |
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| Date: | 4 August 2018 | ||||||||||||||||
| Journal or Publication Title: | Journal of Sound and Vibration | ||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||
| Open Access: | Yes | ||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||
| In SCOPUS: | Yes | ||||||||||||||||
| In ISI Web of Science: | Yes | ||||||||||||||||
| Volume: | 427 | ||||||||||||||||
| DOI: | 10.1016/j.jsv.2017.10.016 | ||||||||||||||||
| Page Range: | pp. 188-221 | ||||||||||||||||
| Editors: |
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| Publisher: | Elsevier | ||||||||||||||||
| Series Name: | Aeroacoustics research in Europe: The CEAS-ASC report on 2016 highlights | ||||||||||||||||
| ISSN: | 0022-460X | ||||||||||||||||
| Status: | Published | ||||||||||||||||
| Keywords: | trailing edge noise reduction, porous materials for noise reduction, graded porous materials, aeroacoustics | ||||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||
| HGF - Program: | Aeronautics | ||||||||||||||||
| HGF - Program Themes: | fixed-wing aircraft | ||||||||||||||||
| DLR - Research area: | Aeronautics | ||||||||||||||||
| DLR - Program: | L AR - Aircraft Research | ||||||||||||||||
| DLR - Research theme (Project): | L - Simulation and Validation (old) | ||||||||||||||||
| Location: | Braunschweig | ||||||||||||||||
| Institutes and Institutions: | Institute for Aerodynamics and Flow Technology > Technical Acoustics | ||||||||||||||||
| Deposited By: | Delfs, Prof.Dr. Jan Werner | ||||||||||||||||
| Deposited On: | 07 Jan 2019 16:14 | ||||||||||||||||
| Last Modified: | 25 Aug 2025 13:23 |
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