Table 10 JCA model parameters for different combinations of microplastics.
From: A sustainable acoustic customization of open porous materials using recycled plastics
Sample | PET powder [g] | PET flakes [g] | Airflow resistivity [Ns/m4] | Porosity [–] | Tortuosity [–] | Viscous characteristic length [μm] | Thermal characteristic length [μm] |
|---|---|---|---|---|---|---|---|
1 | 3.0 | 0.0 | 1663 | 0.75 | 1.01 | 191 | 287 |
13 | 2.0 | 1.0 | 3721 | 0.85 | 1.71 | 290 | 680 |
14 | 1.5 | 1.5 | 4007 | 0.81 | 1.51 | 234 | 468 |
15 | 1.0 | 2.0 | 4893 | 0.79 | 1.98 | 128 | 443 |
16 | 0.5 | 2.5 | 6691 | 0.81 | 1.97 | 333 | 698 |
