Changes between Version 685 and Version 686 of doc/app/errmsg

Timestamp:

Apr 9, 2020 10:59:42 AM (5 years ago)

Author:

raasch

Comment:

--

doc/app/errmsg

@@ -848 +848 @@
 ||[=#PA0646 PA0646]  || ''rad_sw_in'' / ''rad_lw_in'' / ''rad_sw_in_dif'' has no valid ''lod'' attribute  || ||
 ||[=#PA0647 PA0647]   || surface element at grid point (j,i) = ( ... ) is not a pavement surface, so that information given in pavement_pars is neglected. || ||
-||[=#PA0648 PA0648]  || No grid coarsening possible, multigrid approach effectively reduces to a Gauss-Seidel scheme. || The convergence of the pressure solver might be insufficient and the simulation can become unstable. This case, it is worthwhile to increase the number of Gauss-Seidel iterations ([../initialization_parameters#ngsrb ngsrb]). ||
+||[=#PA0648 PA0648]  || No grid coarsening possible, multigrid approach effectively reduces to a Gauss-Seidel scheme. || The convergence of the pressure solver might be insufficient and the simulation can become unstable. You should try to adjust your number of grid points in a way that each of (nx+1), (ny+1), and nz contain power-of-two (2^n^) factors with at least n = 2 or larger.  Alternatively, in case that you cannot change your grid, you may try to increase the number of Gauss-Seidel iterations ([../initialization_parameters#ngsrb ngsrb]) to improve convergence, but this approach is very limited. ||
 ||[=#PA0649 PA0649]  || Invalid input value: prh  || Relative humidity given to the subroutine for ternary nucleation ({{{ternucl}}}) is not within the allowed humidity range of 5-95 %.  ||
 ||[=#PA0650 PA0650]  || Invalid input value: pc_sa  || Number concentration of gaseous sulphuric acid  given to the subroutine for ternary nucleation ({{{ternucl}}}) is not within the allowed range of 1e4-1e9 cm^-3^.  ||