PSI - Issue 63

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ScienceDirect

Procedia Structural Integrity 63 (2024) 13–20

22nd International Conference on Modelling in Mechanics 2024 Numerical Modelling of Water Mist Dispersion Due to Traffic Ivan Kolos a, * , Lenka Lausova a , Vladimira Michalcova a a Department of Structural Mechanics, Faculty of Civil Engineering, VSB-Technical University of Ostrava, Ludvika Podeste 1875/17, 708 00 Ostrava-Poruba, Czech Republic Abstract In winter, de-icing salt causes degradation of traffic structures in the vicinity of the road. The article deals with the numerical analysis in Ansys Fluent software of the transport of water mist from passing cars in order to solve the microclimatic situation around the road. As part of the numerical analysis, a domain was created based on a specific road cut, where measurements of deposition chloride ions will be taking place. The content of the article was an evaluation of the distribution and quantity of salt fog droplets injected from the tires of a passing vehicle falling into the near and far surroundings of the road. Four wind direction variants were evaluated, two from the front and two from the back, all with the wind entering at 60-degree angle. Droplets on three sampling zones at distances of 5, 9 and 13 m from the vehicle axis were monitored. A strong influence of the wind on the behavior of the swirling particles behind the vehicle was confirmed. © 2024 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of 22nd International Conference on Modelling in Mechanics 2024 organizers

Keywords: natural frequency; mode shape; stiffness matrix; mass matrix; bisection method

1. Introduction Sprinkled de-icing salts are used for safe driving on roads in winter. On the other hand, however, they cause corrosion of steel and steel-concrete road bridges and degradation of other transport structures. Monitoring the microclimate in the vicinity of roads can be of great importance for the design of these structures sufficiently resistant to this negative phenomenon.

* Corresponding author. Tel.: +420 596 991 340. E-mail address: ivan.kolos@vsb.cz

2452-3216 © 2024 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of 22nd International Conference on Modelling in Mechanics 2024 organizers 10.1016/j.prostr.2024.09.003