Added example for pouring of particles on flat wall with new granular pair style

examples/granular/in.pour.granular

@@ -0,0 +1,75 @@
+# pour cohesive particles on flat wall, let them flow
+ 
+log		pour_wall_granular.log
+
+atom_style	sphere
+units		lj
+
+###############################################
+# Geometry-related parameters
+###############################################
+
+variable	boxx equal 50
+variable	boxy equal 50
+variable	boxz equal 20
+
+variable	xc equal 0.5*${boxx}
+variable	yc equal 0.5*${boxy}
+
+###############################################
+# Particle-related parameters
+###############################################
+variable	rlo equal 0.25
+variable	rhi equal 0.5
+variable	dlo equal 2.0*${rlo}
+variable	dhi equal 2.0*${rhi}
+
+variable	dens equal 1.0
+
+variable skin equal 0.3*${rhi}
+
+#############
+
+region 		boxreg block 0 ${boxx} 0 ${boxy} 0 ${boxz}
+create_box	2 boxreg
+change_box	all boundary p p f
+
+comm_modify 	vel yes
+
+region		insreg cylinder z ${xc} ${yc} 5 15 ${boxz}
+
+fix		1 all nve/sphere
+fix		grav all gravity 10 vector 0 0 -1
+fix		ins1 all pour 1000 1 3123 region insreg diam range ${dlo} ${dhi} dens ${dens} ${dens}
+fix		ins2 all pour 1000 2 3123 region insreg diam range ${dlo} ${dhi} dens ${dens} ${dens}
+
+comm_modify	vel yes
+
+neighbor	${skin} bin
+neigh_modify	delay 0 every 1 check yes
+
+#pair_style	gran/hertz/history 1e5 1e5 1e3 1e3 0.5 1
+#pair_coeff	* *
+
+pair_style	granular 
+pair_coeff	1 * hertz/material 1e5 1e3 0.3 tangential mindlin NULL 1.0 0.5
+#pair_coeff	2 2 jkr 1e5 1e4 0.3 50 tangential mindlin NULL 1.0 0.5 rolling sds 1e3 1e3 0.1 twisting marshall
+pair_coeff	2 2 jkr 1e5 0.1 0.3 50 tangential mindlin NULL 1.0 0.5 rolling sds 1e3 1e3 0.1 twisting marshall damping tsuji
+#pair_coeff	* * hertz/material 1e5 1e3 0.3 tangential mindlin NULL 1.0 0.5
+
+#fix		3 all wall/gran granular hertz/material 1e5 1e4 0.3 tangential mindlin 1e5 1.0 0.5 rolling sds 1e3 1e3 0.1 twisting marshall zplane 0 NULL 
+fix		3 all wall/gran granular hertz/material 1e5 0.5 0.3 tangential mindlin 1e5 1.0 0.5 damping tsuji zplane 0 NULL 
+
+thermo_style	custom step cpu atoms ke
+thermo_modify	lost warn
+thermo		100
+
+timestep	0.001
+
+dump		1 all custom 100 pour_wall_granular.dump id type radius mass x y z 
+
+run		150000
+
+
+
+