Research Article
Simulation Analysis of Cylindrical Shell Cavity Noise with Melamine Foam Lining
Table 1
Material parameters used in the simulation.
| | | (kg/m3) | | (GPa) | (m/s) | Flow resistivity (Pa·s·m−2) | Porosity | Tortuosity | Viscous characteristic length (mm) | Thermal characteristic length (mm) |
| | Al | 2710 | 0.34 | 70 | — | — | — | — | — | — | | Wood | 800 | 0.40 | 2 | — | — | — | — | — | — | | Air | 1.23 | — | — | 346 | — | — | — | — | — | | MF | 9.38 | — | — | — | 13000 | 0.97 | 1.05 | 0.064 | 0.207 |
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