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Computational studies of the Helmholtz resonator tuning at low flow rates

Abstract

his work is devoted to computational studies of the Helmholtz resonator tuning at low flow rates. The work was carried out in order to establish the effect of low-speed flow on the frequency tuning of the resonator and the possibility of further correct prediction of the operation of the developed muffler design when the engine is idling and low loads.

At the moment, there are a number of works devoted to tuning the natural frequency of the Helmholtz resonator in the presence of a high-speed gas dynamic flow.

This work is aimed at studying changes in the resonance frequency setting in the presence of low flow velocities.

About the Authors

Alevtina S. Konshina
NAMI
Russian Federation

Research Engineer



Stanislav I. Yudin
NAMI
Russian Federation

Chief Specialist



Andrey O. Glazkov
NAMI
Russian Federation

Leading Research Engineer



Givi G. Nadareishvili
NAMI
Russian Federation

Doctor of Sciences (Technical), Deputy Director General for Science



References

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3. Selamet E., Selamet A., Iqbal A., Kim H. Effect of flow on Helmholtz resonator acoustics: A three-dimensional computational study vs. experiments, SAE International, 2011, 14 p.

4. Zhaoa H., Lu Z., Guan Y., Liu Z., Li G., Liu J., Ji C.Z., Effect of extended necks on transmission loss performances of Helmholtz resonators in presence of a grazing flow. Aerospace Science and Technology, 2018, vol. 77, no. 6, pp. 228–234.

5. Bykov, A. I. Investigation of acoustic characteristics of Helmholtz resonators in noise reduction systems : abstract of the dissertation of the Candidate of Technical Sciences : 04/01/06 / Bykov Alexey Ivanovich; [Place of defense: St. Petersburg State Electrotechnical University "LETI" named after V.I. Ulyanov (Lenin)], St. Petersburg, 2021,pp. 22.

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8. D. Zhao. Transmission Loss Analysis of a Parallel-Coupled Helmholtz Resonator Network, AIAA Journal, 2012, pp. 1339-1346.

9. Krylova A.S., Yudin S.I., Glazkov A.O., Nadareishvili G.G. Computational studies of the Helmholtz resonator tuning, in the design of which the waveguide and the resonator throat are located inside the resonator volume, in order to reduce the noise level of the car, Proceedings by US, 2024, pp. 298.

10. Matasova O.Yu., Komkin A.I., Bykov A.I. Features of calculating the elements of noise mufflers in the presence of a stream, Acoustics of the habitat 2022, 2022, pp. 18-25.


Review

Рецензент: М.Г. Шатров, д-р техн. наук, проф., МАДИ

Views: 79


ISSN 2409-7217 (Online)