v8.22.100 AHLV100 - Anechoic Output Waveguide#
Summary:
A rectilinear waveguide with anechoic output, with rigid walls, whose propagation medium is « normal » air, is excited by a harmonically vibrating piston.
Using an acoustic formulation, the acoustic pressure field of the harmonic response is calculated for 13 different models. The results are tested at 2 points at the entrance and 2 points at the exit.
They make it possible to validate the stiffness, mass, damping (impedance) matrices, the source vector (imposed normal speed) as well as the post-processing operators.
The reference results come from an analytical calculation.
- 1. Reference problem
- 2. Benchmark solution
- 3. Modeling A
- 4. B modeling
- 5. D modeling
- 6. E modeling
- 7. F modeling
- 8. G modeling
- 9. H modeling
- 10. Modeling I
- 11. J modeling
- 12. K modeling
- 13. M modeling
- 14. Q modeling
- 15. R modeling
- 16. S modeling
- 17. T modeling
- 18. U modeling
- 19. V modeling
- 20. Summary of results