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Frequency dependant variable

Posted 7 juil. 2017, 14:07 UTC−4 Acoustics & Vibrations, Materials, Parameters, Variables, & Functions Version 5.2 0 Replies

Augusto Carvalho
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Hi there,

I am simulating an impedance tube to obtain the sound absorption coefficient of a metamaterial. I am simulating the tube according to ISO 1053452 and the fluid that fills the pores of the material is simulated by the JCA-Lafarge poroelastic model.

I want to assign the equivalent density and compressibility (or bulk) modulus of the equivalent fluid in a certain domain as the function of the JCA-Lafarge model, variating with frequency, e.g., "effective density = x(f)*y(f)", where x and y are functions variating with the frequency in the solver set up. How can I do this?

Thanks in advance.
0 Replies Last Post 7 juil. 2017, 14:07 UTC−4
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Hello Augusto Carvalho

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