Improved Multipole Broadband Time-Domain Impedance Boundary Condition

Improved Multipole Broadband Time-Domain Impedance Boundary Condition

The primary objective of this paper is to develop an improved multipole broadband time-domain impedance boundary condition. A secondary objective is to derive an analytical solution for problems involving damping of broadband acoustic input by liners with broadband impedance characteristics. These s...

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Veröffentlicht in:AIAA journal 2012-04, Vol.50 (4), p.980-984
Hauptverfasser: Li, X. Y, Li, X. D, Tam, Christopher K. W
Format: Artikel
Sprache:eng
Schlagworte:
Acoustic liners
Acoustics
Boundary conditions
Broadband
Convolution integrals
Equivalence
Exact sciences and technology
Frequency domains
Fundamental areas of phenomenology (including applications)
Impedance
Mathematical models
Mathematical problems
Numerical analysis
Physics
Structural acoustics and vibration
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Beschreibung
Zusammenfassung:The primary objective of this paper is to develop an improved multipole broadband time-domain impedance boundary condition. A secondary objective is to derive an analytical solution for problems involving damping of broadband acoustic input by liners with broadband impedance characteristics. These solutions may serve for benchmarking numerical computations involving broadband sound.
ISSN:0001-1452
1533-385X
DOI:10.2514/1.J051361