Acoustic scattering in flexible waveguide involving step discontinuity.
basic_science · Level V
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- Record sourced from PubMed, PMID 25084019.
- Also identified by DOI 10.1371/journal.pone.0103807 and PMC identifier 4118954.
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Abstract
In this paper, the propagation and scattering of acoustic waves in a flexible wave-guide involving step discontinuity at an interface is considered. The emerging boundary value problem is non-Sturm-Liouville and is solved by employing a hybrid mode-matching technique. The physical scattering process and attenuation of duct modes versus frequency regime and change of height is studied. Moreover, the mode-matching solution is validated through a series of numerical experiments by testifying the power conservation identity and matching interface conditions.
Medical subject headings
- Acoustics
- Models, Theoretical