Research Article

A 3D Multiport Scattering Matrix Based-Method for Educing Wall Impedance of Cylindrical Lined Duct Section: Simulation and Error Evaluation

Figure 30

(a) distribution of the educed normalized acoustic resistance, (b) distribution of the educed normalized acoustic reactance at . Blue: first configuration, red: second configuration.
928367.fig.0030a
(a)
928367.fig.0030b
(b)