Preprint / Version 11

About 3D Cavity Resonance

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DOI:

https://doi.org/10.31224/7076

Keywords:

cavity resonance, three-dimention, Rossiter fomula, Rossiter's equation, cavity noise, cavity sound, whistle noise, whistling noise, whistle sound, whistling sound, Powell's equation

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 formula. Therefore, we limited our study to the three-dimensional case and clarified the physical phenomena that arise by solving a set of partial differential equations that explain the phenomenon. As a result, we were able to determine the frequency at which resonance increases, taking into account three-dimensional space. Finally, we were able to confirm the conditions under which resonance increases through numerical calculations.

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Posted

2026-05-15 — Updated on 2026-07-25

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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

I have revised Equations (23) through (28) and updated the accompanying explanatory text accordingly. No other changes have been made. I sincerely apologize for the trouble of asking you to review the material multiple times within a short period, and I would appreciate it if you could take a look at it.