Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
Investigation of the influence of ground roughness on airflow in the atmospheric boundary layer using OpenFOAM
Submission Author:
Gilberto Augusto Amado Moreira , PB
Co-Authors:
Gilberto Augusto Amado Moreira, Arthur Guilherme, Patrícia Santos, Fabiano Cordeiro Cavalcanti
Presenter: Gilberto Augusto Amado Moreira
doi://10.26678/ABCM.COBEM2023.COB2023-0151
Abstract
This study investigated the impact of ground roughness on airflow in the atmospheric boundary layer using the OpenFOAM numerical simulation software. The atmospheric boundary layer is the area of the atmosphere where the main heat, momentum, and mass transfer processes occur between the surface and the atmosphere. Ground roughness plays a vital role in this layer, affecting wind speed and direction, as well as pressure and temperature distribution on the surface. The OpenFOAM software is an open-source CFD tool used in industry and academia to simulate engineering problems and conduct research in various areas. To perform the simulation, experimental data from an open field with different ground roughnesses were used, and the simulation results were validated with experimental data available in the literature. A comparative analysis of velocity, pressure, and temperature distributions for various ground roughnesses was carried out. The results showed that ground roughness has a significant impact on airflow in the atmospheric boundary layer, with an increase in ground roughness resulting in reduced wind speed in the boundary layer, as well as affecting pressure and temperature distribution on the surface. This study demonstrated that OpenFOAM software is a valuable tool for investigating airflow in the atmospheric boundary layer, providing useful information for improving climate and weather prediction, and the design and operation of structures and equipment exposed to wind and temperature on the Earth's surface.
Keywords
• soil roughness, atmospheric boundary layer, OpenFOAM, numerical model
