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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3. Results The objective of the analysis is to evaluate the amount of droplets that have been sprayed from passing trucks onto three prepared sampling planes in the analytic zone of the domain (Fig. 3). As mentioned above, the position of these sampling planes corresponds to the placement of the measuring sensors (Fig.1) at distances of 5, 9 and 13 m. All planes are 90 m long and have different heights: plane 5 – 13.47 m, plane 9 – 11.57 m and plane 13 – 9.67 m. For a better evaluation, these 90-metre-long planes are divided into four parts, each 22.5 metres long (part 1 - part 4); see Figs. 4 and 5. During the travel of vehicles, the sampling planes are used to monitor the particles that fly through them, and the amount of aerosol captured in these parts 1-4 is individually evaluated. Fig. 4 shows graphically the total amount of droplets that fell on individual parts in kilogrammes and also the distribution of droplets in sampling planes for the wind direction +X | +Z60. The distribution and relative quantity of droplets in kg/m 2 are recorded below this graph in Fig. 4. The local extremes of the amount of captured droplets are shown in all sampling planes 5, 9 and 13. The evaluation of the same quantities for wind direction +X | -Z60 is illustrated in Fig. 5. The values of the amount of droplets that fall on individual parts are also evident from Tables 1 and 2.

Fig. 4. Variant +X | +Z60 – total amount of droplets on individual parts in kg and distribution of droplets on sampling planes.