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Preprint / Version 10

Derivation of Rossiter Formula in Cavity Resonance

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DOI:

https://doi.org/10.31224/7028

Keywords:

cavity sound, cavity noise, cavity resonance, cavity resonance frequency, Rossiter fomula, Rossiter's equation, Green's function, vorticity, Powell's equation, Powell equation, whistle noise, whistle sound, whistling sound, whistling noise, Rossiter's formula, vortex

Abstract

Research on automobile whistling and suction sounds has been conducted in the past. For cavity resonance, a type of whistling sound, the cavity resonance frequency has been determined using Rossiter's empirical equation. Therefore, limiting the study to the one-dimensional case, Rossiter formula was derived by solving a system of three differential equations. In addition, equations for the stability conditions of cavity resonance and the sound pressure were derived. Finally, the results were verified through numerical calculations, and reasonable conclusions were obtained.

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Posted

2026-05-10 — Updated on 2026-08-01

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Copyright (c) 2026 Takuya Yabu

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This work is licensed under a Creative Commons Attribution 4.0 International License.

Version justification

As Helmholtz-type cavity were discussed in Chapter 5, I have added four items of information regarding them to the metadata. The preprint itself remains unchanged. I sincerely apologize for the inconvenience of asking you to review such a minor modification, and I would appreciate it if you could take a look.