Study on parameters influencing the corrosion of metallic coatings on wire exposed to marine environments

The computational fluid dynamic modeling of the motion and capture of aerosol particle was analyzed. The aerosol capture efficiency as the volume fraction captured at a given wind speed was found to be markedly higher for 1 mm diameter cylinders as compared to 10 mm and 25 mm diameter cylinders for all wind speeds up to 10m/s. The computational modeling was carried out using the FLUENT CFD code and applying the the two-equation model with the standard wall function and the enhanced wall function. The motion equation was numerically solved for the particle trajectory around the wire. The coordinates of the grazing trajectories were used to determine the capture efficiency. It was observed that the the capture efficiency depends on a number of factors, including the fluid mechanics of the airflow passing the wire, the physical properties of the aerosol particles (size and density) and the surface properties of the wire surface.