Hello,
I'm having the same problems. Did you figure out the relationship between solution vector index and variable value ? I recon that the two extra values you have are the internal degrees of freedom, though I am not quite sure I understand what they are.
Also regarding the system matrices, do you know what linear system does comsol solve ? I thought (keeping the matrix names given by mphmatrix) it would be:
E*Udotdot + D*Udot + K*U == L
But that doesn't appear to be the case...
Anyhow, I hope you eventually got an answer to your questions and thanks for sharing.
Regards,
Guillaume
I'm having the same problems. Did you figure out the relationship between solution vector index and variable value ? I recon that the two extra values you have are the internal degrees of freedom, though I am not quite sure I understand what they are.
Also regarding the system matrices, do you know what linear system does comsol solve ? I thought (keeping the matrix names given by mphmatrix) it would be:
E*Udotdot + D*Udot + K*U == L
But that doesn't appear to be the case...
Anyhow, I hope you eventually got an answer to your questions and thanks for sharing.
Regards,
Guillaume