ICODE-ADC/lammps
4
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

git-svn-id: svn://svn.icms.temple.edu/lammps-ro/trunk@254 f3b2605a-c512-4ea7-a41b-209d697bcdaa

Browse Source
This commit is contained in:
sjplimp
2007-01-30 00:22:05 +00:00
parent 9cdbeaf9f2
commit 209f169cbc
414 changed files with 6935 additions and 10462 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
src/fix_momentum.cpp
View File

@ -1,7 +1,7 @@
/* ----------------------------------------------------------------------
LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator
www.cs.sandia.gov/~sjplimp/lammps.html
Steve Plimpton, sjplimp@sandia.gov, Sandia National Laboratories
http://lammps.sandia.gov, Sandia National Laboratories
Steve Plimpton, sjplimp@sandia.gov
Copyright (2003) Sandia Corporation. Under the terms of Contract
DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government retains
@ -19,13 +19,16 @@
#include "group.h"
#include "error.h"
using namespace LAMMPS_NS;
/* ----------------------------------------------------------------------
Contributing author: Naveen Michaud-Agrawal (Johns Hopkins U)
------------------------------------------------------------------------- */
/* ---------------------------------------------------------------------- */
FixMomentum::FixMomentum(int narg, char **arg) : Fix(narg, arg)
FixMomentum::FixMomentum(LAMMPS *lmp, int narg, char **arg) :
Fix(lmp, narg, arg)
{
if (narg < 4) error->all("Illegal fix momentum command");
nevery = atoi(arg[3]);
@ -105,7 +108,7 @@ void FixMomentum::end_of_step()
group->xcm(igroup,masstotal,xcm);
group->angmom(igroup,xcm,angmom);
group->inertia(igroup,xcm,inertia);
group->omega(igroup,angmom,inertia,omega);
group->omega(angmom,inertia,omega);
// adjust velocities to zero omega
// vnew_i = v_i - w x r_i