Surface impedance water layer in partially filled cavities

[Ilias Aouaj]

Hello guys!

I have to model the acouctic field within partially filled cavities.

So consider a rectangular or cylindrical cavity that is partially filled with water. I would like to model the water layer as a sound absorbing wall by prescribing it as a surface impedance boundary condition.

My problem is modelling the surface impedance of water. Are there any standard surface impedance models for fluids like water? Or how should I model the surface impedance for water?

I'm also open for any other suggestions in approaching the water layer as a sound absorbing wall.

Thanks for your answers!

 

[tech99]

Hello guys!

I have to model the acouctic field within partially filled cavities.

So consider a rectangular or cylindrical cavity that is partially filled with water. I would like to model the water layer as a sound absorbing wall by prescribing it as a surface impedance boundary condition.

My problem is modelling the surface impedance of water. Are there any standard surface impedance models for fluids like water? Or how should I model the surface impedance for water?

I'm also open for any other suggestions in approaching the water layer as a sound absorbing wall.

Thanks for your answers!

I would guess that the water is intended to be a perfect reflector and not an absorber.

 

[Ilias Aouaj]

I would guess that the water is intended to be a perfect reflector and not an absorber.

Do you think the absorbence is small to neglect?