Table 6 Glycerol concentration variation—JCA model parameters.
From: A sustainable acoustic customization of open porous materials using recycled plastics
Sample | Glycerol [mL] | Airflow resistivity [Ns/m4] | Porosity [–] | Tortuosity [–] | Viscous characteristic length [μm] | Thermal characteristic length [μm] |
|---|---|---|---|---|---|---|
1 | 0.0 | 1663 | 0.75 | 1.01 | 191 | 287 |
5 | 0.8 | 1001 | 0.65 | 1.02 | 184 | 245 |
6 | 1.6 | 1143 | 0.50 | 1.04 | 146 | 173 |
7 | 3.2 | 983 | 0.51 | 1.02 | 134 | 170 |
