Estudo experimental do desempenho aerodinâmico de um modelo automotivo padrão em derrapagem com a inserção de um cilindro sobre a lateral do corpo.

Abstract

The present work was aimed at the definition of the gains in performance of a vehicle in crosswind conditions with an additional cylinder installed on its side, influencing the boundary layer and the recirculation bubble dynamics in the downstream region by means of perturbations. The work, including all its contents, is based on experimental investigations operated by applying three different approaches: flow visualization, efforts measure supported by a wind-tunnel balance and wall pressure evaluation accomplished through static pressure sensors installed in the back of the model. Initially, the flow visualizations have been investigated to get informations on the near-wall region and orientate the further tests accordingly. Thus, the performance parameters have been determined applying the measures of the wind-tunnel balance, and the pressure measurements have been taken to assist the understanding of the achieved results without the employment of more sophisticated visualization techniques.