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Acoustic Structure Interaction Boundary Condition

Posted 11 dic 2009, 17:49 GMT-5 1 Reply

David Parks
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I am attempting to model an ultrasonic wave propagating out of a solid into a fluid. I chose the normal acceleration BC in the acoustic domain at the boundary between the solid and the fluid. However, the model wants an expression for the nromal accelaration and I am not sure what to use for this expression. Can anyone help?
1 Reply Last Post 14 ago 2011, 11:40 GMT-4
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Hello David Parks

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tianrun chen
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Posted: 1 decade ago 14 ago 2011, 11:40 GMT-4
Setup for the fluid part:
Boundary conditions: normal acceleration
nx_acpn*u_tt_acpn+ny_acpn*v_tt_acpn
Setup for the fluid part: Boundary conditions: normal acceleration nx_acpn*u_tt_acpn+ny_acpn*v_tt_acpn

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