The preceding sections explained the basic physics and chemistry of
water and the Wasser simulation program.
The following sections describe specific simulations and their analysis.
In each section, the system settings are given at the beginning
and questions asked at the end.
The settings can be varied or altered at any time.
If no specific configuration is listed to
start with, be sure to start with an equilibrated one.
After a parameter is changed (P,T or 
) the system must be
allowed to equilibrate. The time required for equilibration depends on the system size
and the settings. For a system consisting of 27 water molecules, a temperature
of 298K, and a density of 
(NVT--ensemble)
the simulation needs approximately ten thousand simulation steps
(shown on the display as elapsed time in femtoseconds -- one timestep per femtosecond
(
)) to come to equilibrium.