Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
The VisualEFM.jl package for wind tunnel studies of pedestrian level wind using sand erosion technique
Submission Author:
Gabriel Borelli Martins , SP , Brazil
Co-Authors:
Gabriel Borelli Martins, Felipe Augusto Frazão Kleine
Presenter: Gabriel Borelli Martins
doi://10.26678/ABCM.COBEM2023.COB2023-1545
Abstract
Sand erosion can be an useful technique applied in wind tunnel studies of pedestrian-level wind comfort, heat islands and contaminant dispersion in urban environments. The technique generates a large amount of images which can make analysis and decision-making difficult. Image processing can help with that, by creating clearer color maps and animations. A specific image processing workflow was included to the new VisualEFM Julia package to simplify the extraction of sand erosion patterns from wind tunnel tests. To develop the package a 1:500 scaled model of an urban area in São Paulo was tested in the Atmospheric Boundary Layer Wind Tunnel of the Institute for Technological Research (IPT). The procedure adopted was able to automatically extract the erosion patterns and proved to be very useful for wind tunnel studies involving the ventilation in urban environments.
Keywords
Ventilation, sand erosion, Wind Tunnel, image processing
