Dear All,
I would like to share a script for calculating interfacial tension. The script header describes how it works:
###################################################################
#
# INTERFACIAL TENSION
#
# Author: Jason DeJoannis
# Date: Sept. 23, 2012
#
# Calculates the average interfacial tension from an atomistic
# or Mesocite trajectory using the stress tensor stored in
# each frame (Stress->Eij). The assumption is that there
# are two interfaces and the box size is fixed.
#
# gamma = 0.5 L < P_normal - P_lateral >
# L = box length in direction normal to surfaces
# P_normal = pressure in normal direction
# P_lateral = pressure in lateral direction
#
########## USER DEFINED ###########################################
# Surface normal direction X, Y or Z
my \$surfnormal = "Z";
# Trajectory with stress tensor
my \$doc = \$Documents{"water slab.xtd"};
# Begin with this frame number
my \$startFrame = 1;
###################################################################