This p
aper presents rese
arch results of eject
a due to pl
ane shock w
ave
arriv
al
at
a free smooth surf
ace of
a homogeneous p
attern in the cluster dyn
amics (CD) simul
ation. Provided
are 3D simul
ation results illustr
ating th
at eject
a effect is not only due to the physic
al re
asons but
also due to the side comput
ation effects. One-dimension
al model is developed to study the problems of cluster motion. This model w
as used to
an
alyze the cluster beh
avior when
a shock w
ave
arrives
at the bound
ary of the p
attern. The oscill
ation ch
ar
acter of the ne
ar-bound
ary clusters w
as
an
alyzed
as well
as the imp
act of the inter
action potenti
al
anh
armonicity. It is shown th
at the most high-frequency mode of oscill
ations of the cluster l
attice defined by potenti
al
anh
armonicity (with neighbors moving in opposite ph
ase) pl
ays
an import
ant role in side eject
a effects. Hence, the criteri
a w
as developed to define the threshold lo
ading velocity
associ
ated with eject
a in 3D problems.
The method is suggested to eliminate the ejecta computation effects using the modification of cluster motion equations. The efficiency of this method is verified in a number of 3D simulations. It is shown that the suggested approach eliminates the side ejecta effects and keeps the fundamental physical regularities of loading and further motion of the pattern.