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boundary setup in Acoustic Module - Linear elastic or Impendance
Posted 2013年2月27日 GMT-5 16:52 Acoustics & Vibrations, Modeling Tools & Definitions, Parameters, Variables, & Functions, Structural Mechanics Version 4.2a 0 Replies
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I have a question about the boundary condition setup in my simple 2D symmetric acoustic module.
I would like to simulate a transient pressure distribution in a small glass dish filled with water, particularly the pressure at the bottom glass-water interface .
Pressure source locates in the medium giving the pressure toward to the bottom.
I set the water&air interface (top) as soft boundary. The wall of the dish (side) as hard wall condition.
My question is what about bottom side? Should I set the bottom side as a linear elastic domain to consider the fluid-structure interaction effect on the pressure at the interface? Do I need set the impedance of the glass at bottom or this is already considered in the elastic model?
I am thinking the reflection/transmission of the pressure wave the interface, which one of the boundary setup will include this consideration?
Do I need to consider about the glass-air effect on the other side which is out of my interest?
Thank you very much for advises.
Best
Xu
Hello Xu Meng
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