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Simple Acoustic Problem

Posted Jul 13, 2011, 5:43 p.m. EDT Acoustics & Vibrations Version 4.2, Version 4.2a 0 Replies

Danny Ou
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This is my first time posting here, please forgive me if I have done something against the rules.

Anyway, my problem here is pretty simple. I'm trying to find the pressure along a line with a pressure source at a certain point and some impedance boundary conditions at the ends. This is a simple 1D model, but I'm getting conflicting answers.

The analytical real part of the pressure agrees with the comsol real part of the pressure, but the imaginary parts do not. It seems like the imaginary part of the pressure is same in magnitude but different in sign up until the pressure source.

Do you guys think I did something wrong with my analytical solution? I have attached the comsol model, my hand work, and a matlab file (the analytical part).

Thanks
Danny
0 Replies Last Post Jul 13, 2011, 5:43 p.m. EDT
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Hello Danny Ou

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