2004/11/06 by Zhen Ye, Ye, Zhen
Earth and Planetary Sciences · Engineering · Physics and Astronomy · #Acoustic Wave Phenomena Research #Classical Physics (physics.class-ph) #FOS: Physical sciences #General Physics (physics.gen-ph) #Underwater Acoustics Research #physics.class-ph #physics.gen-ph
paper · pdf · doi:10.48550/arxiv.physics/0411060
4 pages
arxiv created 2004/11/06 · openalex publication_date 2004/11/06 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In this brief report, the group velocity of the eigen-modes in sonic crystals is derived, and shown to equal the averaged energy velocity of the eigen-modes. How the group velocity can be used to describe acoustic energy flows in sonic crystals is discussed.