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Comsol 4.2, Can't work when includes both Acoustic-Shell physics and acoustic-solid physics.
Posted 5 ago 2011, 04:53 GMT-4 Acoustics & Vibrations, Modeling Tools & Definitions, Parameters, Variables, & Functions Version 4.2 0 Replies
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So I use this two physics to complete my model, however I found once I try to add Solid or acoustic-solid into the model, it will show the error for the "interior shell" boundary in the acoustic-shell part (as the attached pic)
Failed to evaluate variable.
- Variable: mod1.acsh.nz
- Geometry: 1
- Boundary: 9
Failed to evaluate expression.
- Expression: d(((mod1.acsh.nx*mod1.acsh.u_ttX+mod1.acsh.ny*mod1.acsh.u_ttY+mod1.acsh.nz*mod1.acsh.u_ttZ)*mod1.acsh.delta*(-down(test(mod1.p))+up(test(mod1.p))))*(dvol_spatial),{up@2})
even I don't include any domains in the solid or acoustic-structure physic part, the error will exist until I delete that physic (even to set it to "disable" is useless).
But if I add shell or other physics to acoustic-shell model can work without problem.
I wonder if there something I should setup first to avoid this problem?
Deeply thank for your kindly help.
Jen-Hsuan
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Hello Jen-Hsuan Ho
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