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more doc tweaks

This commit is contained in:
Steven J. Plimpton 2018-07-18 10:48:29 -06:00
parent 843b96e8dd
commit dfd40c1b70
4 changed files with 33 additions and 30 deletions
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8
doc/src/body.txt
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@ -186,7 +186,7 @@ squares with rounded circles at the vertices. Special cases for N = 1
(circle) and N = 2 (rod with rounded ends) can also be specified. (circle) and N = 2 (rod with rounded ends) can also be specified.
One use of this body style is for 2d discrete element models, as One use of this body style is for 2d discrete element models, as
described in "Fraige"_#Fraige. described in "Fraige"_#body-Fraige.
Similar to body style {nparticle}, the atom_style body command for Similar to body style {nparticle}, the atom_style body command for
this body style takes two additional arguments: this body style takes two additional arguments:
@ -292,7 +292,7 @@ for N = 1 (sphere) and N = 2 (rod with rounded ends) can also be
specified. specified.
This body style is for 3d discrete element models, as described in This body style is for 3d discrete element models, as described in
"Wang"_#Wang. "Wang"_#body-Wang.
Similar to body style {rounded/polygon}, the atom_style body command Similar to body style {rounded/polygon}, the atom_style body command
for this body style takes two additional arguments: for this body style takes two additional arguments:
@ -447,10 +447,10 @@ determined by the {bflag1} parameter for the {body} keyword. The
:line :line
:link(Fraige) :link(body-Fraige)
[(Fraige)] F. Y. Fraige, P. A. Langston, A. J. Matchett, J. Dodds, [(Fraige)] F. Y. Fraige, P. A. Langston, A. J. Matchett, J. Dodds,
Particuology, 6, 455 (2008). Particuology, 6, 455 (2008).
:link(Wang) :link(body-Wang)
[(Wang)] J. Wang, H. S. Yu, P. A. Langston, F. Y. Fraige, Granular [(Wang)] J. Wang, H. S. Yu, P. A. Langston, F. Y. Fraige, Granular
Matter, 13, 1 (2011). Matter, 13, 1 (2011).

6
doc/src/lammps.book
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@ -280,7 +280,8 @@ fix_vector.html
fix_viscosity.html fix_viscosity.html
fix_viscous.html fix_viscous.html
fix_wall.html fix_wall.html
fix_wall_ees.html fix_wall_body_polygon.html
fix_wall_body_polyhedron.html
fix_wall_gran.html fix_wall_gran.html
fix_wall_gran_region.html fix_wall_gran_region.html
fix_wall_piston.html fix_wall_piston.html
@ -419,8 +420,9 @@ pair_agni.html
pair_airebo.html pair_airebo.html
pair_awpmd.html pair_awpmd.html
pair_beck.html pair_beck.html
pair_body.html pair_body_nparticle.html
pair_body_rounded_polygon.html pair_body_rounded_polygon.html
pair_body_rounded_polyhedron.html
pair_bop.html pair_bop.html
pair_born.html pair_born.html
pair_brownian.html pair_brownian.html

10
doc/src/pair_body_rounded_polygon.txt
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@ -35,9 +35,9 @@ body/body interactions which can include body particles modeled as
rounded/polygon particles. rounded/polygon particles.
This pairwise interaction between rounded polygons is described in This pairwise interaction between rounded polygons is described in
"Fraige"_#Fraige, where a polygon does not have sharp corners, but is "Fraige"_#pair-Fraige, where a polygon does not have sharp corners,
rounded at its vertices by circles centered on each vertex with a but is rounded at its vertices by circles centered on each vertex with
specified diameter. The edges of the polygon are defined between a specified diameter. The edges of the polygon are defined between
pairs of adjacent vertices. The circle diameter for each polygon is pairs of adjacent vertices. The circle diameter for each polygon is
specified in the data file read by the "read data"_read_data.html specified in the data file read by the "read data"_read_data.html
command. This is a 2d discrete element model (DEM) which allows for command. This is a 2d discrete element model (DEM) which allows for
@ -79,7 +79,7 @@ Note that F_n and F_t are functions of the surface separation \delta_n
+ r_c, that is, 0 < \delta_n < r_c, the cohesive region of the two + r_c, that is, 0 < \delta_n < r_c, the cohesive region of the two
surfaces overlap and the two surfaces are attractive to each other. surfaces overlap and the two surfaces are attractive to each other.
In "Fraige"_#Fraige, the tangential friction force between two In "Fraige"_#pair-Fraige, the tangential friction force between two
particles that are in contact is modeled differently prior to gross particles that are in contact is modeled differently prior to gross
sliding (i.e. static friction) and during gross-sliding (kinetic sliding (i.e. static friction) and during gross-sliding (kinetic
friction). The latter takes place when the tangential deformation friction). The latter takes place when the tangential deformation
@ -129,6 +129,6 @@ for pair interactions.
[Default:] none [Default:] none
:link(Fraige) :link(pair-Fraige)
[(Fraige)] F. Y. Fraige, P. A. Langston, A. J. Matchett, J. Dodds, [(Fraige)] F. Y. Fraige, P. A. Langston, A. J. Matchett, J. Dodds,
Particuology, 6, 455 (2008). Particuology, 6, 455 (2008).

39
doc/src/pair_body_rounded_polyhedron.txt
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@ -34,15 +34,15 @@ body/body interactions which can include body particles modeled as
"body"_body.html doc page for more details on using body "body"_body.html doc page for more details on using body
rounded/polyhedron particles. rounded/polyhedron particles.
This pairwise interaction between the rounded polyhedra is described in This pairwise interaction between the rounded polyhedra is described
"Wang"_#Wang, where a polyhedron does not have sharp corners and in "Wang"_#pair-Wang, where a polyhedron does not have sharp corners
edges, but is rounded at its vertices and edges by spheres centered on and edges, but is rounded at its vertices and edges by spheres
each vertex with a specified diameter. The edges if the polyhedron centered on each vertex with a specified diameter. The edges if the
are defined between pairs of adjacent vertices. Its faces are defined polyhedron are defined between pairs of adjacent vertices. Its faces
by a loop of edges. The sphere diameter for each polygon is specified are defined by a loop of edges. The sphere diameter for each polygon
in the data file read by the "read data"_read_data.html command. This is specified in the data file read by the "read data"_read_data.html
is a discrete element model (DEM) which allows for multiple contact command. This is a discrete element model (DEM) which allows for
points. multiple contact points.
Note that when two particles interact, the effective surface of each Note that when two particles interact, the effective surface of each
polyhedron particle is displaced outward from each of its vertices, polyhedron particle is displaced outward from each of its vertices,
@ -74,15 +74,16 @@ and edge-face overlaps are given by:
:c,image(JPG/pair_body_rounded.jpg) :c,image(JPG/pair_body_rounded.jpg)
In "Wang"_#Wang, the tangential friction force between two particles In "Wang"_#pair-Wang, the tangential friction force between two
that are in contact is modeled differently prior to gross sliding particles that are in contact is modeled differently prior to gross
(i.e. static friction) and during gross-sliding (kinetic friction). sliding (i.e. static friction) and during gross-sliding (kinetic
The latter takes place when the tangential deformation exceeds the friction). The latter takes place when the tangential deformation
Coulomb frictional limit. In the current implementation, however, we exceeds the Coulomb frictional limit. In the current implementation,
do not take into account frictional history, i.e. we do not keep track however, we do not take into account frictional history, i.e. we do
of how many time steps the two particles have been in contact nor not keep track of how many time steps the two particles have been in
calculate the tangential deformation. Instead, we assume that gross contact nor calculate the tangential deformation. Instead, we assume
sliding takes place as soon as two particles are in contact. that gross sliding takes place as soon as two particles are in
contact.
The following coefficients must be defined for each pair of atom types The following coefficients must be defined for each pair of atom types
via the "pair_coeff"_pair_coeff.html command as in the examples above, via the "pair_coeff"_pair_coeff.html command as in the examples above,
@ -123,7 +124,7 @@ for pair interactions.
[Default:] none [Default:] none
:link(Wang) :link(pair-Wang)
[(Wang)] J. Wang, H. S. Yu, P. A. Langston, F. Y. Fraige, Granular [(Wang)] J. Wang, H. S. Yu, P. A. Langston, F. Y. Fraige, Granular
Matter, 13, 1 (2011). Matter, 13, 1 (2011).