8
at different sampling locations with the movement of a
truck. This is more evident at Location 4 which is the main
return of the mine, where airflow increased from 30 m3/s
(63,500 cfm) to 60 m3/s (127,100 cfm) when a truck is
going in and 30 m3/s (63,500 cfm) to 45 m3/s (95,350 cfm)
while a truck coming out of the mine. However, not much
increase was noticed at the sampling locations inside the
that movement of the truck does change the airflow pattern
inside the mine. In order to compare both cases, airflow
through different sampling locations as shown in Figure 8
were plotted for the simulation time.
Figure 12 presents the airflow quantity at different
sampling locations for simulation time. It can be seen from
the figure that there is a positive impact on the airflow
Figure 9. An expanded view of the truck in the model
Figure 10. An expanded view of the mesh elements around the truck body and moving
domain