5. Numerical methods and metrology for acoustic properties of porous materials
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The need for reliable means of predicting the properties of porous materials is essential, on the one hand to be able to predict the behavior of materials and their various combinations before they are designed, and, on the other, to validate the models presented in paragraph 1 by comparing them with the various global measurements presented in paragraph...
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Numerical methods and metrology for acoustic properties of porous materials
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Appendix: equivalent fluid
The "effective density" and "effective modulus of compressibility" functions of the equivalent fluid must be suitably represented by the following approximate models:
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