2024-08-262024-08-262024-07-17GONÇALVES, Gustavo Bittar. Simulação de escoamentos turbulentos em colinas periódicas utilizando o OpenFOAM®. 2024. 64 f. Trabalho de Conclusão de Curso (Bacharelado em Engenharia Mecânica) - Escola de Engenharia Elétrica, Mecânica e de Computação, Universidade Federal de Goiás. Goiânia, 2024.http://repositorio.bc.ufg.br//handle/ri/25388The present work aims to establish a starting point for determining the optimal positioning of wind turbines on terrain characterized by a sequence of periodic hills. The determining factors for the choice of positioning addressed include the height of the boundary layer wind profile in each specific region and the local turbulence, which results in an increase in the dynamic load on the turbine towers. To analyze these factors, turbulent regime simulations were performed using the OpenFOAM® software, which allowed for the estimation of the velocity profile developed according to the terrain topography and the flow characteristics. In order to reduce the total analysis time, the simulations were carried out using parallel processing. For the simulations the SpalartAllmaras turbulence model was used, and the numerical analysis was conducted using the multigrid method. The Reynolds number, defined at 10595 based on values from the literature, was used as a parameter for result comparison, ensuring the validity and effectiveness of the adopted procedure. Despite the main limitation of the study being its application to theoretical situations, where the terrain profile is established in a periodic manner, the research offers a relevant preliminary analysis that can serve as a basis for future studies more applied to the flow over real and complex terrains. This study seeks not only to contribute to the understanding of the factors that influence the efficiency of wind turbines but also to promote advances in the optimization of wind energy utilization, aiming for a more effective and sustainable implementation of this renewable energy source.porAcesso AbertoDinâmica dos fluidos computacionalOpenFOAMEnergia eólicaEscoamentos turbulentosColinas periódicasComputational fluid dynamicsWind energyTurbulent flowsPeriodic hillsTrabalho de conclusão de curso de graduação (TCCG)