[cig-commits] r3853 -
short/3D/PyLith/branches/pylith-0.8/doc/userguide/fileformats
willic3 at geodynamics.org
willic3 at geodynamics.org
Thu Jun 22 11:56:55 PDT 2006
Author: willic3
Date: 2006-06-22 11:56:55 -0700 (Thu, 22 Jun 2006)
New Revision: 3853
Modified:
short/3D/PyLith/branches/pylith-0.8/doc/userguide/fileformats/bc.xml
short/3D/PyLith/branches/pylith-0.8/doc/userguide/fileformats/fuldat.xml
short/3D/PyLith/branches/pylith-0.8/doc/userguide/fileformats/hist.xml
short/3D/PyLith/branches/pylith-0.8/doc/userguide/fileformats/keyval.xml
short/3D/PyLith/branches/pylith-0.8/doc/userguide/fileformats/skew.xml
short/3D/PyLith/branches/pylith-0.8/doc/userguide/fileformats/time.xml
Log:
Minor changes to manual.
Modified: short/3D/PyLith/branches/pylith-0.8/doc/userguide/fileformats/bc.xml
===================================================================
--- short/3D/PyLith/branches/pylith-0.8/doc/userguide/fileformats/bc.xml 2006-06-22 18:25:45 UTC (rev 3852)
+++ short/3D/PyLith/branches/pylith-0.8/doc/userguide/fileformats/bc.xml 2006-06-22 18:56:55 UTC (rev 3853)
@@ -36,6 +36,10 @@
# 1 = Fixed displacement
# 2 = Constant velocity
# 3 = Constant force
+# A 2 or more digit code may be used for the boundary condition
+# flag. If used, the the final digit refers to the condition
+# type as defined above, while the beginning digit(s) refer to
+# the time history to be used.
# (5) Boundary condition value for x DOF
# (6) Boundary condition value for y DOF
# (7) Boundary condition value for z DOF
Modified: short/3D/PyLith/branches/pylith-0.8/doc/userguide/fileformats/fuldat.xml
===================================================================
--- short/3D/PyLith/branches/pylith-0.8/doc/userguide/fileformats/fuldat.xml 2006-06-22 18:25:45 UTC (rev 3852)
+++ short/3D/PyLith/branches/pylith-0.8/doc/userguide/fileformats/fuldat.xml 2006-06-22 18:56:55 UTC (rev 3853)
@@ -7,7 +7,8 @@
<para>
The <filename>xx.fuldat</filename> file lists the time step
numbers at which full output is desired. The elastic solution
- (time step 0) is always included in the output.
+ (time step 0) is always included in the output. This file is
+ required for time-dependent problems.
</para>
<figure>
Modified: short/3D/PyLith/branches/pylith-0.8/doc/userguide/fileformats/hist.xml
===================================================================
--- short/3D/PyLith/branches/pylith-0.8/doc/userguide/fileformats/hist.xml 2006-06-22 18:25:45 UTC (rev 3852)
+++ short/3D/PyLith/branches/pylith-0.8/doc/userguide/fileformats/hist.xml 2006-06-22 18:56:55 UTC (rev 3853)
@@ -22,7 +22,7 @@
#
# Line 1, column 1: The number of points in the time history
# Line 1, column 2: The value assigned to every point by default
-# (overrided by values in time history)
+# (overridden by values in time history)
# Line 2+, column 1: Time (in seconds) for a given load value
# Line 2+, column 2: Load value at given time
#
Modified: short/3D/PyLith/branches/pylith-0.8/doc/userguide/fileformats/keyval.xml
===================================================================
--- short/3D/PyLith/branches/pylith-0.8/doc/userguide/fileformats/keyval.xml 2006-06-22 18:25:45 UTC (rev 3852)
+++ short/3D/PyLith/branches/pylith-0.8/doc/userguide/fileformats/keyval.xml 2006-06-22 18:56:55 UTC (rev 3853)
@@ -6,7 +6,7 @@
<para>
The <filename>xx.keyval</filename> file specifies some simple
- parameters settings.
+ parameter settings.
</para>
<!-- SECTION +++++++++++++++++++++++++++++++++++++++++++++++++++ -->
@@ -16,11 +16,7 @@
<para>
Scaling factors can be applied to Windkler forces, permitting a
quick and easy way to change the density or gravitational
- acceleration when Winkler forces are used to simulate
- gravity. Scaling factors for differential Winkler forces are
- applied across a slippery node interface. These factors provide
- a simple way of scaling the forces so that the fault remains
- sufficiently locked.
+ acceleration when Winkler forces are used to simulate gravity.
</para>
</section>
@@ -44,7 +40,9 @@
<listitem>
<para>
Quadrature order that is one order less than full
- quadrature.
+ quadrature. Note that for linear tetrahedra full and
+ reduced quadrature are equivalent (single integration
+ point).
</para>
<warning>
<para>Use with caution as reduced quadrature can lead to
@@ -53,7 +51,7 @@
</listitem>
</varlistentry>
<varlistentry>
- <term><literal>Reduced</literal></term>
+ <term><literal>Selective</literal></term>
<listitem>
<para>
Uses Hughes' b-bar formulation to perform reduced
@@ -76,7 +74,8 @@
be set to uniform values independent of the parameters for any
of the material models. When gravity is being used and
prestresses are not computed automatically, each prestress
- component can be scaled independently.
+ component can be scaled independently. Reading prestresses from
+ files is presently disabled.
</para>
</section>
@@ -107,6 +106,7 @@
#
# Specify whether to use the solution from the previous time step as
# the starting guess for the elastic solution in the current time step.
+# This feature has not been tested.
#
usePreviousDisplacementFlag = 0
</screen>
@@ -138,7 +138,8 @@
prestressScaleXz = 1.0
prestressScaleYz = 1.0
#
-# Unit numbers used in Fortran code.
+# Unit numbers used in Fortran code. These defaults should work for
+# most Unix systems, but may be altered if necessary.
#
f77StandardInput = 5
f77StandardOutput = 6
Modified: short/3D/PyLith/branches/pylith-0.8/doc/userguide/fileformats/skew.xml
===================================================================
--- short/3D/PyLith/branches/pylith-0.8/doc/userguide/fileformats/skew.xml 2006-06-22 18:25:45 UTC (rev 3852)
+++ short/3D/PyLith/branches/pylith-0.8/doc/userguide/fileformats/skew.xml 2006-06-22 18:56:55 UTC (rev 3853)
@@ -12,8 +12,13 @@
</para>
<para>
- CHARLES- WHEN ARE THESE USED? DO THEY APPLY TO ALL BC ASSOCIATED
- WITH ALL OF THE NODES LISTED??
+ The applied coordinate rotations apply to all boundary conditions
+ associated with the nodes listed in the file. These are useful,
+ for example, if it is desired to apply boundary conditions in a
+ direction normal or tangential to a side of the mesh when the
+ side does not align with the global coordinate directions.
+ Similarly, skew conditions could be used when specifying slip on a
+ fault that lies at an angle to the global coordinates.
</para>
<figure>
Modified: short/3D/PyLith/branches/pylith-0.8/doc/userguide/fileformats/time.xml
===================================================================
--- short/3D/PyLith/branches/pylith-0.8/doc/userguide/fileformats/time.xml 2006-06-22 18:25:45 UTC (rev 3852)
+++ short/3D/PyLith/branches/pylith-0.8/doc/userguide/fileformats/time.xml 2006-06-22 18:56:55 UTC (rev 3853)
@@ -49,7 +49,8 @@
# <0 Indicates that reformation should occur only for the first
# step in each time step group.
# =0 Indicates that reformation should never occur.
-# (7) Large deformation solution flag
+# (7) Large deformation solution flag (only Linear strain is
+# presently available).
# 0 = Linear strain
# 1 = Large strain but use only linear contribution to the
# stiffness matrix (sometimes results in better convergence)
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