[Nek5000-users] Trouble with stress formulation

[nek5000-users at lists.mcs.anl.gov]

Hi all

I am having some trouble when activating the IFSTRS flag.

The eigenvalues seem to blow up, and the mesh changes.

The warning message is just the beginning of a long list of mismatches I
suspect is caused by the unwanted change in the mesh topology.

Below is a part of the output with and without activating the
stress-fromulation.

******** IFSTRS = TRUE *******************
 Estimated eigenvalues
 EIGAA =    1.83548835643387
 EIGGA =                      NaN
 EIGAE =   0.314292232447382
 EIGAS =   1.426923754586004E-002
 EIGGE =                      NaN
 EIGGS =    2.00000000000000

 verify mesh topology
 -0.643805403845627        4.96000004000001       Xrange
  -1.75000000000000        1.75000000000000       Yrange
  0.000000000000000E+000   1.50000000000000       Zrange
 WARNING1 Element mesh mismatch at:
 i,j,k,ie:    8    1    2        3836

******** IFSTRS = FALSE *******************
 Estimated eigenvalues
 EIGAA =    1.86445005547390
 EIGGA =    161789138.855617
 EIGAE =   0.401177329567469
 EIGAS =   1.793099473620650E-002
 EIGGE =    161789138.855617
 EIGGS =    2.00000000000000

 verify mesh topology
 -1.276863900000000E-008   4.96000004000001       Xrange
  -1.75000000000000        1.75000000000000       Yrange
  0.000000000000000E+000   1.50000000000000       Zrange
 done :: verify mesh topology

*************************************************

Any help will be appreciated.

Regards
Magnus
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