Volume I - Section II - Animal Room Variations 
Page II - 31 
Figure 2.25 3-Dimension Flow Visualization 
The vectors show the radial pattern of flow leaving the radial diffuser supply and the strong down 
flow in the center of the room. The airflow over the cages is very low in this view, as the velocity 
vectors are very small, appearing virtually as dots. The concentration plot shows high 
concentrations around the cages at the top of the racks. Even though the velocities are very low 
around the cages, the tendency for the flow to go over the cages towards the rear wall is clearly 
evident in the way the concentration levels are much higher behind the cages than in the center of 
the room. 
2.3. 1.2 Using three-dimensional flow visualization 
Three-dimensional flow visualization allows us to understand the interaction of complex flows. 
Figure 2.25 shows the airflow from the radial supply in the baseline model. The air is colored 
according to the temperature of the air, blue through green, yellow and red representing low to 
high temperatures. Various recirculation regions are visible as the air follows a very complex 
path from the white supply down the middle of the room and back up to the red exhaust, which is 
also situated on the ceiling. 
