4
All mesh is triangular with boundary layer on the walls.
Figure 3 shows the element size distribution of the trian-
gular and boundary elements near the walls. The Realizable
κ-ε turbulent model was used for all the simulation studies.
In this case, a steady state simulation was run with an
inlet velocity of 0.5 m/s. The low velocity values represent
a normal atmospheric condition when wind speed is low.
Figure 4 presents the velocity profile along with streamlines
at 0.5 m/s air velocity coming from the inlet. It can be seen
from the streamlines that there is airflow inside the mine
with extremely low velocities. The airflow is entering the
mine from the main entry and coming out from the main
Figure 3. A view of the mesh size )in mm) in the model geometry
Figure 4. Velocity profile along with streamlines of the base model with an inlet velocity of
0.5 m/s
All mesh is triangular with boundary layer on the walls.
Figure 3 shows the element size distribution of the trian-
gular and boundary elements near the walls. The Realizable
κ-ε turbulent model was used for all the simulation studies.
In this case, a steady state simulation was run with an
inlet velocity of 0.5 m/s. The low velocity values represent
a normal atmospheric condition when wind speed is low.
Figure 4 presents the velocity profile along with streamlines
at 0.5 m/s air velocity coming from the inlet. It can be seen
from the streamlines that there is airflow inside the mine
with extremely low velocities. The airflow is entering the
mine from the main entry and coming out from the main
Figure 3. A view of the mesh size )in mm) in the model geometry
Figure 4. Velocity profile along with streamlines of the base model with an inlet velocity of
0.5 m/s