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The above procedure is repeated for all the nodes which correspond to those parts
of space that are related to displacing bodies.
In the system, there may exist initial agents as well as final agents whose activity
is related to the edge nodes of the grid modeling a given body.
The initiation of the process involves the activation of certain initial agents by the
system.
In the example we present the agent
A
1
is the initial agent which removes para-
meters from the node
W
a
and copies them into the node
W
b
.
The results of the simulation realized in this way is presented in Fig.
5.28
.The
bodies have the form of two contacting layers. In the upper layer, the area in the
shape of a square (in three-dimensional space of the cube) is heated uniformly to a
certain temperature. Afterwards, we have heat spreading and the movement of the
upper layer towards the bottom layer. The results of the simulation at the subsequent
moments of time are presented in Fig.
5.28
.
5.5.3 An Example of the Application in the Casting Processes
Metal casting is one of the frequently used technological processes which seems to
be difficult to realize.
Making a metal casting of high quality is a process which requires meeting a
number of technological prerequisites such as the cooling rate of metal, so-called a
cast in a mould. The rate of dissipating the heat away, thereby a decrease in tem-
perature, is the basic factor affecting the physical parameters (crystallization) of a
casting. Therefore, the process of cooling the cast is the subject of numerous studies,
inter alia, with the use of methods of the computer simulation [17].
(a)
(b)
A
R
R
p
1
p
2
Fig. 5.29
Schema illustrating the way of simulation of cooling the cast:
a
schema of the confor-
mation,
b
representation in the grid environment
