PSI - Issue 73

Ivan Kolos et al. / Procedia Structural Integrity 73 (2025) 58–65 Author name / Structural Integrity Procedia 00 (2025) 000 – 000

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Fig. 5. Variant +X | – Z60 – total amount of droplets in individual parts in kg and distribution of droplets in sampling planes.

The evaluation of the number of droplets and their distribution in the given sampling zones for both wind directions according to the figures and values in the tables is as follows. Wind direction +X | +Z: the largest number of particles sprayed in sampling plane 5 in part 1, fewer droplets fell on the other parts of this plane. In total, approximately 7 kg of water fell on this sampling plane. Significantly fewer particles reached sampling plane 9. In total, approximately 0.5 kg of water reaches plane 9. According to the model, no droplets will reach plane 13. These values correspond to the figure below, with droplet dispersion on each sampling plane. The droplets spread with great intensity to a height of about 1.5 m on plane 5 and only minimally reached plane 9. Wind direction +X | -Z60: the number of droplets and their dispersion on individual sampling planes is completely different from the previous variant. Overall, a much smaller number of particles fell on all these planes compared to the previous wind direction. Plane 5 received the most droplets in Parts 1 and 2 and a total of 1.7 kg of particles. A similar amount of about 1 kg of droplets fell on planes 9 and 13. The dispersion of droplets and their location in individual planes were also different from the previous variant. In the direction of the wind +X | +Z, the droplets did not reach plane 13, and in the direction of the wind +X | – Z60, they sprayed at a great distance.

Table 1. Variant +X | +Z60: droplets in kg in sampling planes at distances of 5, 9 and 13 m from the road axis. Amount of droplets [kg] Sampling plane 5 Sampling plane 9 Sampling plane 13 Part 1 3.009 0.419 0 Part 2 1.082 0.017 0 Part 3 1.809 0.100 0 Part 4 0.990 0.004 0