Figures at a glance

Figure 1

Figure 2

Table 1

Dimension (mm)	Cell #1	Cell #2
Lch (Length of the main volume)	80	20
a (Length of the side of the main volume)	10	2.5
Lca (Length of the capillaries)	100	25
Rca (Radius of the capillaries)	2	0.5

Table 1: Main dimensions of the designed cells.

Table 2

	Value	Unit
Heat capacity at constant pressure Cp	1005.42	J/(kg K)
The ratio of specific heats γ	1.4
Dynamic viscosity μ	1.81e-5	Pa s
Bulk viscosity l	1.09e-5	Pa s
Speed of sound c	343.11	m/s
Thermal conductivity κ	2.58e-2	W/(m K)
Density ρ	1.205	kg/m3

Table 2: Physical properties of air at 293 K and 101,325 Pa

Table 3

Mesh quality	9	8	7	6	5	4	3	2	1
max	9.33	5.66	3.68	2.83	1.90	1.50	1.05	0.651	0.368
min	1.98	1.41	1.13	0.85	0.57	0.28	0.11	0.042	0.006

Table 3: Maximum (max) and minimum (min) element size in mm versus mesh quality, where the lowest value represents the finest mesh.

FIGURE 1

FIGURE 2

FIGURE 3

Figure 3: Block diagram of the experimental setup

FIGURE 4

Figure 4: Resonance frequency, Q-factor and cell #1 response in function of the mesh quality (‘1’ = Extremely fine and ‘9’ = Extremely coarse)

FIGURE 5

Figure 5: Microphones A and B responses for cell #1 in the function of the excitation frequency. Experimental data are represented by dots whereas modeling results are in solid line.

FIGURE 6

Figure 6: Cell #1 response in function of the excitation frequency. Experimental data are represented by dots whereas modeling results are in solid line.

FIGURE 7

Figure 7: Resonance frequency, Q-factor and cell #2 response in function of the mesh quality (‘1’ = Extremely fine and ‘9’ = Extremely coarse)

FIGURE 8

Figure 8: Microphones A and B responses for cell #2 in function of the excitation frequency. Experimental data are represented by dots whereas modeling results are in dashed line for PAM, in solid line for TAM-BL and in dotted line for TAM-BL with model including leaks.

FIGURE 9

Figure 9: Cell #2 response in function of the excitation frequency. Experimental data are represented by dots whereas modeling results are in dashed line for PAM, in solid line for TAM-BL and in dotted line for TAM-BL with a model including leaks.