Figures & data
Figure 1. Overall schematic layout of dual dynamic protection for the FOA as shown in neutral plane.
Figure 2. Longitudinal obstruction experimental setup: (a) overall settings; (b) sample areas setting.
Figure 3. CCD images of 5-μm diameter particles at market area after applying Image Binarization methods. (a)–(d), respectively, present natural sedimentation from position 1–4, while adding extra (e) laminar flow, (f) laminar flow and air knife at position 4 are also exhibited.
Figure 4. Simulation arrangement in the neutral plane.
Figure 5. Experimental setup depicting the placement of each component including bellows, collection boards, 45 degree-bracket, and air knives. Four in-line positions from the C1 surface at 100, 200, 300, and 400 mm, respectively.
Figure 6. Absolute proportion of 0.5–5 μm particles from position 1–4 in natural sedimentation.
Figure 7. Relative percentage after applying windy methods at preset positions. (a)–(c) represented modification of particles in diameter 0.5, 1, 5 μm, respectively.
Figure 8. Simulation results of velocity field during recovery process of laminar and air knife flow at various times. (a)–(d) indicating time at 0.32, 0.35, 0.47, and 0.73 s, respectively.
Table 1. The statistic ratio (average) of particles on the three collection boards released at various positions.