3.4.1.1.1 Geometry for catch probability
The first setup, which models the behavior of particles located
close to the collection station, is used to calculate
the capture probability for different particles. For this
purpose, a “small” setup with a simulation domain of 50
x 6 x 20 m³ is used. The small setup makes computation
faster, allowing for more parameter variations. The setup
is displayed in Figure 3.28. The V shape of the barrier
close to the collection station is modeled by the use of
symmetry. The boundary on the right side of the flow box
is mirrored, resulting in a V-like structure for the barrier
when looking at it from the top. The boom (or barrier) is
modeled with a 3 m height.
3.4.1.1.2 Geometry for particle transport simulation
The second geometric setup is used to model the particle
speed in front of the barrier. Because the portion of
the flow toward the sink will add up as the barrier gets
larger, a simulation domain of 100 x 100 x 20 m³ is used.
The final boom length is expected to be larger, but this
setup should allow the investigation of how the boom angle
affects the particle speed in front of the barrier. The
geometrical setup is displayed in Figure 3.29.