[mesa-users] MESA test suite case - wd_ignite

Héctor MR HEM52 at pitt.edu
Thu Mar 26 00:01:37 EDT 2015


  Hi,

  Thanks! Basically, this is the part of my inlist &controls section which
deals with the problem:


      report_why_dt_limits = .true.

      delta_lgL_nuc_limit = 0.5

      !delta_lgL_nuc_hard_limit = 0.5

      min_timestep_factor = 0.8d0

      power_nuc_burn_upper_limit = 1d15

      max_timestep =  1972350000

      varcontrol_target = 1d-3
      mesh_delta_coeff = 0.5

      logQ_limit = 1d6
      gamma_center_limit = 1d6

      photostep = 50
      profile_interval = 50
      history_interval = 10
      terminal_cnt = 10
      write_header_frequency = 10

      min_timestep_limit = 1d-8 ! seconds

      T_mix_limit = 1d4


  And, eventually, my terminal output shows that the variation in lg_Lnuc
is bigger than the limit I established before (0.5). I do not understand my
misconception regarding the command delta_lgL_nuc_limit. Lnuc is giving me
problems regarding the time step and this is why I want to limit it.

  Thanks!


__________________________________________________________________________________________________________________________________________________

       step    lg_Tcntr    Teff       lg_LH     lg_Lnuc     Mass
H_rich     H_cntr     N_cntr     Y_surf     X_avg     eta_cntr  zones retry
   lg_dt_yr    lg_Dcntr    lg_R       lg_L3a    lg_Lneu     lg_Mdot
He_core    He_cntr    O_cntr     Z_surf     Y_avg     gam_cntr  iters bckup
     age_yr    lg_Pcntr    lg_L       lg_LZ     lg_Psurf    lg_Dsurf
C_core     C_cntr     Ne_cntr    Si_cntr    Z_avg     v_div_cs     dt_limit
__________________________________________________________________________________________________________________________________________________

        480   8.486869  2.618E+05   2.859290   3.126873   1.382237
0.000000   0.000000   0.000206   0.000000   0.000000 214.803526   1919
1
   1.795872   9.535192  -2.586528 -29.955105   2.519596  -7.000000
0.000000   0.000000   0.618844   1.000000   0.000000  23.766144      4
0
 3.8224E+06  27.397920   1.452514   2.789604  10.804753  -2.247950
1.382237   0.354695   0.019368   0.000662  1.000E+00 -0.519E-12
max_dt

        490   8.521023  2.618E+05   3.635027   3.909948   1.382299
0.000000   0.000000   0.000279   0.000000   0.000000 198.563837   1898
1
   1.795872   9.535305  -2.586601 -28.919191   3.114083  -7.000000
0.000000   0.000000   0.618800   1.000000   0.000000  21.980979      4
0
 3.8230E+06  27.398142   1.452150   3.581138  10.804681  -2.247597
1.382299   0.353850   0.019502   0.000662  1.000E+00  0.693E-12
max_dt
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