Enhanced quality factors at resonance in acoustofluidic cavities embedded in matched elastic metamaterials

2025/10/29 by Frederiksen, Valdemar, Bruus, Henrik
#FOS: Physical sciences #Fluid Dynamics (physics.flu-dyn)

paper · doi:10.48550/arxiv.2510.25527

Abstract

We show that by embedding liquid-filled acoustofluidic cavities in a metamaterial, the quality factor of the cavity at selected acoustic resonance modes can be enhanced by 2 to 3 orders of magnitude relative to a comparable conventional cavity by matching the coarse-grained elastic moduli of the metamaterial to the acoustic properties of the liquid.

Citations

• The acoustic radiation force on a spherical thermoviscous particle in a thermoviscous fluid including scattering and microstreaming

Related

• Vortex Modes in Acoustofluidic Cylindrical Resonators
• Architected acoustic metamaterials: An integrated design perspective
• MEMS approach to low-frequency broadband acoustic metamaterials
• Acoustic Analogues of High-Index Optical Waveguide Devices
• Acoustic characteristics of damped metamaterial plate with parallel attached resonators