Visualization of the energy flow for a guided forward wave in and around a fluid loaded elastic cylindrical shell

Abstract

Previous work [Cleon E. Dean and James P. Braselton, J. Acoust. Soc. Am. 107, 2921 (2000)] showed the energy flow for a fluid loaded elastic cylindrical shell at the resonance frequency. The results were equivocal since there are two counterpropagating guided waves. The current work uses a clever analysis due to Kaduchak and Marston [Gregory Kaduchak and Philip L. Marston, J. Acoust. Soc. Am. 98, 3501–3507 (2000)] to separate the two waves and show the energy flux associated with just one forward propagating surface guided wave.