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Minor doc changes & rename store_contacts to contacts

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Richard Berger 2020-06-10 15:52:47 -04:00
parent ff6675e4d8
commit 6f78dd688a
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2 changed files with 28 additions and 28 deletions
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54
doc/src/fix_wall_gran.rst
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@ -8,7 +8,7 @@ Syntax
.. parsed-literal::
fix ID group-ID wall/gran fstyle fstyle_params wallstyle args keyword values ... [store_contacts]
fix ID group-ID wall/gran fstyle fstyle_params wallstyle args keyword values ...
* ID, group-ID are documented in :doc:`fix <fix>` command
* wall/gran = style name of this fix command
@ -45,7 +45,7 @@ Syntax
radius = cylinder radius (distance units)
* zero or more keyword/value pairs may be appended to args
* keyword = *wiggle* or *shear* or *store_contacts*
* keyword = *wiggle* or *shear* or *contacts*
.. parsed-literal::
@ -56,7 +56,8 @@ Syntax
*shear* values = dim vshear
dim = *x* or *y* or *z*
vshear = magnitude of shear velocity (velocity units)
*store_contacts* = store contact information for each particle colliding with wall
*contacts* value = none
store contact information for each particle colliding with wall
Examples
@ -70,7 +71,7 @@ Examples
fix 3 all wall/gran/region granular hooke 1000.0 50.0 tangential linear_nohistory 1.0 0.4 damping velocity region myBox
fix 4 all wall/gran/region granular jkr 1e5 1500.0 0.3 10.0 tangential mindlin NULL 1.0 0.5 rolling sds 500.0 200.0 0.5 twisting marshall region myCone
fix 5 all wall/gran/region granular dmt 1e5 0.2 0.3 10.0 tangential mindlin NULL 1.0 0.5 rolling sds 500.0 200.0 0.5 twisting marshall damping tsuji region myCone
fix 6 all wall/gran hooke 200000.0 NULL 50.0 NULL 0.5 0 xplane -10.0 10.0 store_contacts
fix 6 all wall/gran hooke 200000.0 NULL 50.0 NULL 0.5 0 xplane -10.0 10.0 contacts
Description
"""""""""""
@ -185,30 +186,29 @@ info on how to re-specify a fix in an input script that reads a
restart file, so that the operation of the fix continues in an
uninterrupted fashion.
If the :code:`store_contacts` option is used, this fix will store the contact
information for each atom that interacts with the wall. The following table
summarizes which values are available as per-atom quantities
(:code:`f_FIXID[Index]`) to access by various :doc:`output commands <Howto_output>`:
If the :code:`contacts` option is used, this fix will store the contact
information for each atom that interacts with the wall as per-atom array with 8
columns. The values of these columns are listed in the following table:
+-------+----------------------------------------------------+
| Index | Value |
+=======+====================================================+
| 1 | Atom ID |
+-------+----------------------------------------------------+
| 2 | Force :math:`f_x` exerted on the wall |
+-------+----------------------------------------------------+
| 3 | Force :math:`f_y` exerted on the wall |
+-------+----------------------------------------------------+
| 4 | Force :math:`f_z` exerted on the wall |
+-------+----------------------------------------------------+
| 5 | :math:`\Delta x` between wall surface and particle |
+-------+----------------------------------------------------+
| 6 | :math:`\Delta y` between wall surface and particle |
+-------+----------------------------------------------------+
| 7 | :math:`\Delta z` between wall surface and particle |
+-------+----------------------------------------------------+
| 8 | Radius :math:`r` of atom |
+-------+----------------------------------------------------+
+-------+----------------------------------------------------+----------------+
| Index | Value | Units |
+=======+====================================================+================+
| 1 | Atom ID | |
+-------+----------------------------------------------------+----------------+
| 2 | Force :math:`f_x` exerted on the wall | force units |
+-------+----------------------------------------------------+----------------+
| 3 | Force :math:`f_y` exerted on the wall | force units |
+-------+----------------------------------------------------+----------------+
| 4 | Force :math:`f_z` exerted on the wall | force units |
+-------+----------------------------------------------------+----------------+
| 5 | :math:`\Delta x` between wall surface and particle | distance units |
+-------+----------------------------------------------------+----------------+
| 6 | :math:`\Delta y` between wall surface and particle | distance units |
+-------+----------------------------------------------------+----------------+
| 7 | :math:`\Delta z` between wall surface and particle | distance units |
+-------+----------------------------------------------------+----------------+
| 8 | Radius :math:`r` of atom | distance units |
+-------+----------------------------------------------------+----------------+
None of the :doc:`fix_modify <fix_modify>` options are relevant to this fix.
No parameter of this fix can be used with the *start/stop* keywords of the

2
src/GRANULAR/fix_wall_gran.cpp
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@ -370,7 +370,7 @@ FixWallGran::FixWallGran(LAMMPS *lmp, int narg, char **arg) :
vshear = force->numeric(FLERR,arg[iarg+2]);
wshear = 1;
iarg += 3;
} else if (strcmp(arg[iarg],"store_contacts") == 0) {
} else if (strcmp(arg[iarg],"contacts") == 0) {
peratom_flag = 1;
size_peratom_cols = 8;
peratom_freq = 1;