Mathematical Problems in Engineering / 2013 / Article / Fig 2

Research Article

Acoustic Response of a Sinusoidally Perturbed Hard-Walled Duct

Figure 2

Reflection ((a), (c), (e)) and transmission ((b), (d), (f)) spectral responses, in magnitude, of a sinusoidally perturbed duct computed with (20) (solid line) and numerical results (crosses). ((a)-(b)) Case (i); ((c)-(d)) Case (ii); ((e)-(f)) Case (iii).
267291.fig.002a
(a)
267291.fig.002b
(b)
267291.fig.002c
(c)
267291.fig.002d
(d)
267291.fig.002e
(e)
267291.fig.002f
(f)

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