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A THREE-DIMENSIONAL SYMMETRICAL CONDENSED TLM NODE FOR ACOUSTICS

✍ Scribed by J.A. PORTÍ; J.A. MORENTE

Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
185 KB
Volume
241
Category
Article
ISSN
0022-460X

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✦ Synopsis

The transmission line modelling (TLM) method is applied to acoustic problems. A three-dimensional (3-D) symmetrical condensed node for acoustics and the corresponding scattering matrix are presented. A full development of the analogy between acoustic-"eld quantities and pulses at the nodes is carried out that also allows the de"nition of excitation techniques and the imposition boundary conditions. Finally, numerical examples prove the satisfactory behaviour of the TLM method in acoustics.

2001 Academic Press 0022-460X/01/120207#16 $35.00/0 *u V *x # *u W *y # *u X *z "! *p *t , *p *x "! *u V *t , (1a, b) *p *y " ! *u W *t , *p *z "! *u X *t , (1c, d)

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