Hello i made an analyze for porous material to get absorbtion coifficent. I used Delany-Bazley model.
I want to produce this material with 3d printer. My main material is PLA.
There is a forum about my study, I used that parameters to get absorbtion coifficent.
My problem is when i select port parameter i have a two option. First one is impedance tube when i choosed tube it worked and gave me a result. But the result is so unreal.
After that i selected port parameter to porous material i take an warning.
It says: The input power at the driven port is equal to zero. Please check the port definitions.
How can i solve this problem?
And these are the results. Please help me
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