Scattering analysis of a flexible trifurcated lined waveguide structure with step-discontinuities

Touqeer Nawaz, Muhammad Afzal, Abdul Wahab

2021

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DOI 10.1088/1402-4896/ac169e
Data confidence 85 high
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Abstract

Abstract This article investigates the scattering characteristics of a flexible trifurcated lined duct containing multiple-step discontinuities in a general context. A semi-infinite duct is symmetrically situated inside an infinite acoustic-lined duct having step-discontinuities and generalized mixed boundaries. The scattering potentials in different regions are computed using the mode-matching approach. The influence of structural discontinuities, duct size, and material parameters on the energy functions of scattered fields is discussed.