(8f699198) · Commits · 郑智淋 / lammps

README

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		This is the LAMMPS (21 May 2008) software package.
		This is the LAMMPS (6 Jan 2009) software package.

		LAMMPS stands for Large-scale Atomic/Molecular Massively Parallel
		Simulator.
		@@ -20,7 +20,7 @@ The primary author of the code is Steve Plimpton, who can be emailed
		at sjplimp@sandia.gov. The LAMMPS WWW Site at lammps.sandia.gov has
		more information about the code and its uses.

		The LAMMPS (21 May 2008) distribution includes the following files
		The LAMMPS (6 Jan 2009) distribution includes the following files
		and directories:

		README this file

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		@@ -8,7 +8,7 @@ newton off

		read_data data.chute

		pair_style gran/history 200000.0 50.0 0.5 0
		pair_style gran/hooke/history 200000.0 NULL 50.0 NULL 0.5 0
		pair_coeff * *

		neighbor 0.1 bin

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		@@ -15,14 +15,21 @@ neigh_modify delay 0
		# More appropriate values for realistic simulations would be
		# k = 2.0e5 and dt = 0.0001, as in bench/in.chute.

		pair_style gran/history 2000.0 50.0 0.5 0
		pair_style gran/hooke/history 2000.0 NULL 50.0 NULL 0.5 0
		#pair_style gran/hertz/history 4000.0 NULL 100.0 NULL 0.5 0
		pair_coeff * *

		timestep 0.001

		variable kn equal 2000.0
		variable gamman equal 50.0
		#variable kn equal 2000.0*sqrt(2.0)
		#variable gamman equal 50.0*sqrt(2.0)

		fix 1 all nve/sphere
		fix 2 all gravity 1.0 spherical 0.0 -180.0
		fix zlower all wall/gran zplane 0.0 2000.0 50.0 0.5
		fix zlower all wall/gran ${kn} NULL ${gamman} NULL 0.5 0 &
		zplane 0.0 2000.0

		region slab block -9.0 9.0 -9.0 9.0 10.0 15.0 units box
		fix ins all pour 3000 1 300719 vol 0.13 50 region slab

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		@@ -11,20 +11,25 @@ create_box 1 reg
		neighbor 0.2 bin
		neigh_modify delay 0

		# IMPORTANT NOTE: these values of stiffness (2000) and timestep (0.001)
		# IMPORTANT NOTE: these values of stiffness (4000) and timestep (0.001)
		# are used in this example file to produce a quick simulation and movie.
		# More appropriate values for realistic simulations would be
		# k = 2.0e5 and dt = 0.0001, as in bench/in.chute.
		# k = 4.0e5 and dt = 0.0001, as in bench/in.chute (it if were Hertzian).

		pair_style gran/hertzian 2000.0 50.0 0.5 0
		pair_style gran/hertz/history 4000.0 NULL 100.0 NULL 0.5 0
		pair_coeff * *

		timestep 0.001

		variable kn equal 2000.0*sqrt(2.0)
		variable gamman equal 50.0*sqrt(2.0)

		fix 1 all nve/sphere
		fix 2 all gravity 1.0 spherical 0.0 -180.0
		fix xwalls all wall/gran xplane 0 100 50 0
		fix ywalls all wall/gran yplane 0 NULL 50 0
		fix xwalls all wall/gran ${kn} NULL ${gamman} NULL 0 1 &
		xplane 0 100
		fix ywalls all wall/gran ${kn} NULL ${gamman} NULL 0 1 &
		yplane 0 NULL

		region slab block 1.0 99.0 30 34.5 -0.5 0.5 units box
		fix ins all pour 1000 1 4767548 vol 0.4 10 &