Simulation of acoustic performance of ceramic foam based on COMSOL

Ceramic foam has excellent properties such as high porosity, high temperature resistance, chemical corrosion resistance and good thermal stability. It is widely used as liquid metal filter, high temperature gas and ion exchange filter, catalyst carrier, environmental material, heat insulation material, sound absorption material, biological material and so on. This paper first introduces the principle of the ceramic foam as an acoustic material, and then establishes the impedance tube model based on COMSOL software. The influence of thickness, pore size, porosity and material on the sound absorption properties of the foam ceramics is simulated and analyzed.