Assessment of the influence of turbulators in the neck of a low frequency resonator on its acoustic characteristics
The work considers low-frequency resonators with an extended neck and turbulators of different sizes, that make up a set of additional faces located on the inner surface of the resonator neck. The main goal of the work is to assess how strongly these structural elements influence the turbulization o...
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| Format: | Article |
| Language: | English |
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Samara National Research University
2025-06-01
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| Series: | Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение |
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| Online Access: | https://journals.ssau.ru/vestnik/article/viewFile/28703/11333 |
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| author | O. Yu. Kustov V. V. Palchikovskiy I. V. Khramtsov A. A. Kuznetsov |
| author_facet | O. Yu. Kustov V. V. Palchikovskiy I. V. Khramtsov A. A. Kuznetsov |
| author_sort | O. Yu. Kustov |
| collection | DOAJ |
| description | The work considers low-frequency resonators with an extended neck and turbulators of different sizes, that make up a set of additional faces located on the inner surface of the resonator neck. The main goal of the work is to assess how strongly these structural elements influence the turbulization of the flow when a wave with a high sound pressure level falls on the resonator and, thereby, the dissipation of sound energy by the resonator. The studies were carried out under conditions of wave incidence normal to the front surface of the resonator. A qualitative assessment was carried out on the basis of numerical simulation of physical processes in a non-stationary formulation in an axisymmetric resonator. Quantitative assessment was based on full-scale measurements of resonators with turbulators of different sizes in a normal incidence impedance tube. The obtained results showed that for the considered variants of turbulators, an increase in their size leads to an increase in the total vorticity of the flows, and also increases the sound absorption coefficient. |
| format | Article |
| id | doaj-art-9c7ec4ae43094dd7a130ebc288b44dfc |
| institution | OA Journals |
| issn | 2542-0453 2541-7533 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Samara National Research University |
| record_format | Article |
| series | Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение |
| spelling | doaj-art-9c7ec4ae43094dd7a130ebc288b44dfc2025-08-20T02:35:31ZengSamara National Research UniversityВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение2542-04532541-75332025-06-0124215916910.18287/2541-7533-2025-24-2-159-1698971Assessment of the influence of turbulators in the neck of a low frequency resonator on its acoustic characteristicsO. Yu. Kustov0https://orcid.org/0000-0003-1371-5331V. V. Palchikovskiy1I. V. Khramtsov2A. A. Kuznetsov3https://orcid.org/0000-0002-5231-6598Perm National Research Polytechnic UniversityPerm National Research Polytechnic UniversityPerm National Research Polytechnic UniversityPerm National Research Polytechnic UniversityThe work considers low-frequency resonators with an extended neck and turbulators of different sizes, that make up a set of additional faces located on the inner surface of the resonator neck. The main goal of the work is to assess how strongly these structural elements influence the turbulization of the flow when a wave with a high sound pressure level falls on the resonator and, thereby, the dissipation of sound energy by the resonator. The studies were carried out under conditions of wave incidence normal to the front surface of the resonator. A qualitative assessment was carried out on the basis of numerical simulation of physical processes in a non-stationary formulation in an axisymmetric resonator. Quantitative assessment was based on full-scale measurements of resonators with turbulators of different sizes in a normal incidence impedance tube. The obtained results showed that for the considered variants of turbulators, an increase in their size leads to an increase in the total vorticity of the flows, and also increases the sound absorption coefficient.https://journals.ssau.ru/vestnik/article/viewFile/28703/11333acoustic linerlow-frequency resonatorturbulatorsound absorption coefficientnormal incidence impedance tube |
| spellingShingle | O. Yu. Kustov V. V. Palchikovskiy I. V. Khramtsov A. A. Kuznetsov Assessment of the influence of turbulators in the neck of a low frequency resonator on its acoustic characteristics Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение acoustic liner low-frequency resonator turbulator sound absorption coefficient normal incidence impedance tube |
| title | Assessment of the influence of turbulators in the neck of a low frequency resonator on its acoustic characteristics |
| title_full | Assessment of the influence of turbulators in the neck of a low frequency resonator on its acoustic characteristics |
| title_fullStr | Assessment of the influence of turbulators in the neck of a low frequency resonator on its acoustic characteristics |
| title_full_unstemmed | Assessment of the influence of turbulators in the neck of a low frequency resonator on its acoustic characteristics |
| title_short | Assessment of the influence of turbulators in the neck of a low frequency resonator on its acoustic characteristics |
| title_sort | assessment of the influence of turbulators in the neck of a low frequency resonator on its acoustic characteristics |
| topic | acoustic liner low-frequency resonator turbulator sound absorption coefficient normal incidence impedance tube |
| url | https://journals.ssau.ru/vestnik/article/viewFile/28703/11333 |
| work_keys_str_mv | AT oyukustov assessmentoftheinfluenceofturbulatorsintheneckofalowfrequencyresonatoronitsacousticcharacteristics AT vvpalchikovskiy assessmentoftheinfluenceofturbulatorsintheneckofalowfrequencyresonatoronitsacousticcharacteristics AT ivkhramtsov assessmentoftheinfluenceofturbulatorsintheneckofalowfrequencyresonatoronitsacousticcharacteristics AT aakuznetsov assessmentoftheinfluenceofturbulatorsintheneckofalowfrequencyresonatoronitsacousticcharacteristics |