Analytical method for studying acoustic fields radiated by general spherical sound sources in thermoviscous fluids.
J Acoust Soc Am
; 156(2): 912-921, 2024 Aug 01.
Article
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| MEDLINE
| ID: mdl-39120870
ABSTRACT
The study of acoustic radiation from spherical sound sources plays a crucial role in understanding the thermoviscous effects in practical acoustic problems. However, finding a general solution of acoustic radiation from spherical sound sources in thermoviscous fluids remains a formidable challenge. To advance this issue, an analytical method is developed in this paper to calculate the acoustic field radiated by spherical sound sources with the isothermal boundary condition and arbitrary velocity boundary condition. The developed method is utilized to present the solutions of the acoustic field generated by an oscillating sphere and a general spherical sound source, and the accuracy and validity of these solutions are verified through analytical and numerical methods.
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2024
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