Fig. 10: FEM-simulated pressure fields of the BBPA-optimized MSSC array. | npj Acoustics

Fig. 10: FEM-simulated pressure fields of the BBPA-optimized MSSC array.

From: Simultaneous acoustic perfect absorption and rainbow trapping via topologically optimized sub-wavelength multi-slit sonic crystal metamaterials

Fig. 10: FEM-simulated pressure fields of the BBPA-optimized MSSC array.The alternative text for this image may have been generated using AI.

At (a) 300 Hz, (b) 353 Hz, (c) 435 Hz, (d) 535 Hz, (e) 650 Hz, (f) 775 Hz, (g) 780 Hz, (h) 895 Hz. The colour scale represents \({\left|P/{P}_{0}\right|}^{2}\), where \({P}_{0}=1\,{\rm{Pa}}\).

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