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Time-dependent problem-convergence issues
Posted 2012年2月9日 GMT+1 00:32Fluid & Heat, Studies & SolversVersion 4.21 Reply
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I am working on a time-dependent FSI problem. The problem converges well when I model the solid as a linear elastic material. However I end up with convergence issues and inverted mesh elements when I use a hyperelastic material model to represent the solid.
I am wondering if someone can explain why this is happening and how do I fix this?
Thanks,
Sirisha
I am wondering if someone can explain why this is happening and how do I fix this?
Thanks,
Sirisha
1 Reply
Last Post 2012年2月10日 GMT+1 00:24
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Posted:
1 decade ago
I tried running the problem with the solid modeled as a linear elastic material and I also selected the geometric non-linearity option. I am getting inverted mesh elements even in this case.
I am wondering if someone can suggest some basic reasons as to why this is happening only when the hyperelastic material is used (or when the non-linearity option is selected).
Thanks for the help.
Sirisha
I am wondering if someone can suggest some basic reasons as to why this is happening only when the hyperelastic material is used (or when the non-linearity option is selected).
Thanks for the help.
Sirisha