Merge pull request #1529 from rupertnash/compute_momentum (88523fdd) · Commits · 郑智淋 / lammps

doc/src/Commands_compute.txt

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		@@ -81,6 +81,7 @@ KOKKOS, o = USER-OMP, t = OPT.
		"meso/e/atom"_compute_meso_e_atom.html,
		"meso/rho/atom"_compute_meso_rho_atom.html,
		"meso/t/atom"_compute_meso_t_atom.html,
		"momentum"_compute_momentum.html,
		"msd"_compute_msd.html,
		"msd/chunk"_compute_msd_chunk.html,
		"msd/nongauss"_compute_msd_nongauss.html,

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		@@ -228,6 +228,7 @@ compute"_Commands_compute.html doc page are followed by one or more of
		"meso/e/atom"_compute_meso_e_atom.html - per-atom internal energy of Smooth-Particle Hydrodynamics atoms
		"meso/rho/atom"_compute_meso_rho_atom.html - per-atom mesoscopic density of Smooth-Particle Hydrodynamics atoms
		"meso/t/atom"_compute_meso_t_atom.html - per-atom internal temperature of Smooth-Particle Hydrodynamics atoms
		"momentum"_compute_momentum.html - translational momentum
		"msd"_compute_msd.html - mean-squared displacement of group of atoms
		"msd/chunk"_compute_msd_chunk.html - mean-squared displacement for each chunk
		"msd/nongauss"_compute_msd_nongauss.html - MSD and non-Gaussian parameter of group of atoms

0 → 100644

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		"LAMMPS WWW Site"_lws - "LAMMPS Documentation"_ld - "LAMMPS Commands"_lc :c

		:link(lws,http://lammps.sandia.gov)
		:link(ld,Manual.html)
		:link(lc,Commands_all.html)

		:line

		compute momentum command :h3

		[Syntax:]

		compute ID group-ID momentum :pre

		ID, group-ID are documented in "compute"_compute.html command
		momentum = style name of this compute command :ul

		[Examples:]

		compute 1 all momentum :pre

		[Description:]

		Define a computation that calculates the translational momentum
		of a group of particles.

		The momentum of each particles is computed as m v, where m and v are
		the mass and velocity of the particle.

		[Output info:]

		This compute calculates a global vector (the summed momentum) of
		length 3. This value can be used by any command that uses a global
		vector value from a compute as input. See the "Howto
		output"_Howto_output.html doc page for an overview of LAMMPS output
		options.

		The vector value calculated by this compute is "extensive". The vector
		value will be in mass*velocity "units"_units.html.

		[Restrictions:]

		This compute is part of the USER-MISC package. It is only enabled if
		LAMMPS was built with that package. See the "Build
		package"_Build_package.html doc page for more info.

		[Related commands:]

		[Default:] none

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