Molecular Dynamics
Simulation of Detonation.
The chemistry which occurs in an explosive material when
an impinging shock wave initiates detonation is
difficult to follow experimentally for two reasons: the
time scale involved is very short, and the destructive
nature of the detonation tends to destroy any nearby
monitoring equipment. However, knowledge of the details
of the onset of detonation would be valuable in
understanding the nature of the process and ultimately
in designing better explosives.
Computer simulation of
molecular motion in solid model systems is used to
investigate the onset of detonation. The goal is to
incorporate realistic bond-breaking and bond-forming
processes so that the simulation can successfully model
chemical effects in detonation, such as the role of
impurities, voids, molecular orientation, and
exothermicity, on the speed and stability of detonation
wave propagation.
A student who wishes to become
involved in this research should have a good background
in physics and physical chemistry, and an interest in
programming and/or computer graphics.