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Delayed-time domain impedance boundary conditions (D-TDIBC)

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Academic year: 2021

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Figure

Fig. 1. Orientation of ingoing and outgoing acoustic waves A in n and A out n with respect to an Impedance Boundary (IB) with outward pointing normal n
Fig. 2. Typical case where the computational domain can be cut at x = x 1 . The propagation of acoustic waves in the truncated portion (between x 1 and x 2 ) is accounted for by the delayed reflection coefficient R τ (Eq
Fig. 3. Acoustic variables for two canonical limit cases: (a) the flanged open-end, and (b) the closed-end (hard wall) cases
Fig. 4. Real part of a typical PBF R k (Eq. (21)). Three properties are visualized: ω 0 , k , h 0 , k and 1 ω ǫ
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