Hello I would like to report that the time dependent Navier Stokes example in
https://dealii.org/developer/doxygen/deal.II/code_gallery_time_dependent_navier_stokes.html compile but does not run correctly with deal.II 9.2.0 . The analysis can run until step 204 and then diverge. Would it be possible changes in preconditioner destroy the convergence? ************************************************************************************************ Time step = 201, at t = 2.010000e-01 GMRES_ITR = 8 GMRES_RES = 4.052763e-10 ************************************************************************************************ Time step = 202, at t = 2.020000e-01 GMRES_ITR = 8 GMRES_RES = 7.194398e-10 ************************************************************************************************ Time step = 203, at t = 2.030000e-01 GMRES_ITR = 8 GMRES_RES = 1.361073e-09 ************************************************************************************************ Time step = 204, at t = 2.040000e-01 GMRES_ITR = 8 GMRES_RES = 4.896128e-09 ************************************************************************************************ Time step = 205, at t = 2.050000e-01 GMRES_ITR = 8 GMRES_RES = 3.220123e-08 ************************************************************************************************ Time step = 206, at t = 2.060000e-01 GMRES_ITR = 8 GMRES_RES = 7.647033e-07 ************************************************************************************************ Time step = 207, at t = 2.070000e-01 GMRES_ITR = 8 GMRES_RES = 3.355695e-04 ************************************************************************************************ Time step = 208, at t = 2.080000e-01 GMRES_ITR = 8 GMRES_RES = 5.007715e+01 ************************************************************************************************ Time step = 209, at t = 2.090000e-01 GMRES_ITR = 8 GMRES_RES = 1.262003e+12 ************************************************************************************************ Time step = 210, at t = 2.100000e-01 GMRES_ITR = 8 GMRES_RES = 1.279221e+33 Best Giang -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google Groups "deal.II User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/dealii/c2728ab9-c629-430d-9a45-e290c7126b2cn%40googlegroups.com.
