Figure 2. Modelling accuracy for three sound absorption materials. (IMAGE)

Kobe University

Figure 2. Modelling accuracy for three sound absorption materials.

Caption

Comparison between the theoretical values (black line) and the proposed method (red line): The materials are from left: glass-wool, needle felt and a glass-wool backed micro-perforated panel. The absorption coefficient on the Y axis indicates the acoustic absorption material’s performance. The closer the value to 1, the better the absorption.

Credit

Yoshida T, Okuzono T, Sakagami K. A Parallel Dissipation-Free and Dispersion-Optimized Explicit Time-Domain FEM for Large-Scale Room Acoustics Simulation. Buildings. 2022; 12(2):105.

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