Research Article
Acoustic Wave Propagation in a Trifurcated Lined Waveguide
Table 1
Field intensity versus the truncation number for different boundary conditions of the semi-infinite duct.
| | , , , , , and | for hard boundary conditions | for soft boundary conditions |
| 10 | 1.809170 | 0.824323 | 20 | 1.853300 | 0.878547 | 30 | 1.883790 | 0.899716 | 40 | 1.905980 | 0.911027 | 50 | 1.922750 | 0.918070 | 60 | 1.935870 | 0.922877 | 70 | 1.946400 | 0.926369 | 80 | 1.955050 | 0.929019 | 90 | 1.962260 | 0.931100 | 100 | 1.968380 | 0.932777 | 110 | 1.973630 | 0.934157 | 120 | 1.978180 | 0.935313 | 130 | 1.982170 | 0.936295 | 140 | 1.985700 | 0.937140 | 150 | 1.988830 | 0.937874 |
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