Email this article Application of the equivalent source method for numerical simulation of hydrodynamic noise of elastic bodies
- Authors: Balakireva N.V.1, Zaytseva S.G.1
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Affiliations:
- Federal Research Center A. V. Gaponov-Grekhov Institute of Applied Physics of the Russian Academy of Sciences (IAP RAS)
- Issue: Vol 10, No 3 (2024): 20.11.2024
- Pages: 7-18
- Section: Articles
- Published: 20.11.2024
- URL: https://dynvibro.ru/dynvibro/article/view/27985
- DOI: https://doi.org/10.18287/2409-4579-2024-10-3-7-18
- ID: 27985
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Abstract
The paper presents a novel approach to predicting the emission characteristics of hydrodynamic edge noise, which occurs when elastic bodies move in turbulent flow. The solution is based on the decomposition of the computational domain and replacing it with a set of segments. Each such subdomain determines the corresponding energy contribution of hydrodynamic noise sources to the total sound field of a streamlined body. The statistical independence of the processes of the selected regions allows us to give a simplified representation of the radiation flowing around the body in the form of a sound propagation process from a finite number of point sources. The purpose of the report is to cross-verify the method on the model problem of profile flow by a liquid flow. The average error of the method relative to the associated calculation "hydrodynamics-acoustics" is no more than 3dB in the range up to 1500 Hz.
About the authors
Nadezhda V. Balakireva
Federal Research Center A. V. Gaponov-Grekhov Institute of Applied Physics of the Russian Academy of Sciences (IAP RAS)
Author for correspondence.
Email: balakireva@ipfran.ru
Junior Researcher
Russian Federation, Nizhny NovgorodSvetlana G. Zaytseva
Federal Research Center A. V. Gaponov-Grekhov Institute of Applied Physics of the Russian Academy of Sciences (IAP RAS)
Email: s.zaitseva@ipfran.ru
Junior Researcher
Russian Federation, Nizhny NovgorodReferences
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