The article discusses the design and analysis of a labyrinthine sound absorption panel intended for enhancing acoustic properties in confined fluid environments. It emphasizes the significance of two primary loss mechanisms—thermal and viscous losses—when sound propagates through restricted spaces. By employing a specific labyrinthine geometry and utilizing thermo-viscous loss models, the study aims to achieve optimal sound absorption through a quarter-wave resonator design. The interaction between the system's geometry and physical dissipation is crucial for achieving perfect absorption, which occurs under the critical coupling condition. This research has potential implications for various acoustic applications.
In analyzing sound absorption in confined fluid environments, we find that matching thermal and viscous losses can achieve perfect sound absorption, a critical coupling condition.
The designed labyrinthine geometry functions as a quarter-wave resonator, applying loss models to potentially optimize sound absorption characteristics in various applications.
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