Research Article
Fractal Model for Acoustic Absorbing of Porous Fibrous Metal Materials
Table 3
The physical parameters of the PFMM samples and experimental results of static flow resistivity.
| | Sample parameters | Porosity
(%) | Fiber diameter
(µm) | Thickness
(mm) | Shape factor
| Flow resistivity
σ (Nm−4s) |
| | Sample #1 | 81 | 50 | 25 | 1.11 | 98756 | | Sample #2 | 86 | 50 | 25 | 1.11 | 34655 | | Sample #3 | 90 | 50 | 25 | 1.11 | 19748 |
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