[cig-commits] r8239 - doc/CitcomS/manual

[tan2 at geodynamics.org]

Author: tan2
Date: 2007-11-08 11:30:33 -0800 (Thu, 08 Nov 2007)
New Revision: 8239

Modified:
   doc/CitcomS/manual/citcoms.lyx
Log:
Update for Cookbook 5

Modified: doc/CitcomS/manual/citcoms.lyx
===================================================================
--- doc/CitcomS/manual/citcoms.lyx	2007-11-08 19:22:36 UTC (rev 8238)
+++ doc/CitcomS/manual/citcoms.lyx	2007-11-08 19:30:33 UTC (rev 8239)
@@ -9053,6 +9053,22 @@
 \end_layout
 
 \begin_layout Standard
+The descending slab will cause some numerical instability in the temperature
+ solver.
+ To reduce the numerical instability, you will use a smaller time step size
+ (0.75 of the maximum time step size for stable solution).
+ The change in temperature maximum will also be monitored.
+ If the maximum temperature increases too much (> 5%) between time steps,
+ the temperature solver will rerun with half time-step size.
+\end_layout
+
+\begin_layout LyX-Code
+finetunedt = 0.75
+\newline
+monitor_max_T = on
+\end_layout
+
+\begin_layout Standard
 \begin_inset Float figure
 placement H
 wide false
@@ -9107,7 +9123,7 @@
 \begin_layout LyX-Code
 [CitcomS]
 \newline
-steps = 1000                ; number of time steps
+steps = 1100                ; number of time steps
 \newline
 
 \newline
@@ -9198,25 +9214,34 @@
 \newline
 
 \newline
+[CitcomS.solver.tsolver]
+\newline
+finetunedt
+ = 0.75
+\newline
+monitor_max_T = on
+\newline
+
+\newline
 [CitcomS.solver.visc]
 \newline
-num_mat
- = 4
+num_mat = 4
 \newline
 visc0 = 100,0.003,1,2
 \newline
-TDEPV = on
+TDEPV
+ = on
 \newline
 viscE = 24,24,24,24
 \newline
 viscT = 0.182,0.182,0.182,0.182
 \newline
-
 VMIN = on
 \newline
 visc_min = 0.01
 \newline
-VMAX = on
+VMAX
+ = on
 \newline
 visc_max = 100.0 
 \end_layout