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[Jianfan Ling]

For the ansys analysis, I want the final result would be the time-domain signal of a pulse received by a transducer. Should I use static acoustics? The shell is full of water and the inside body should be a infinte length and width plastisol with 25mm thickness.

[Federico]

Hello Jianfan,

are you looking to analyze the fluid acoustics? Or the structural response to the pulse signal?

[Jianfan Ling]

Hello Federico,

I am looking to analyze a structural response to the pulse signal. The boundary condition would be the solid will immerse in the water. Thankyou

[Federico]

In that case, I would not recommend using Fluent for this. 

Please post your question in the right channel for better assistance on this: General Mechanical (ansys.com)