Further insights into the dynamics and interactions of unsteady 3D vortical flows

点击翻译按钮获取中文摘要

The unsteady three-dimensional (3D) flow and their interactions with streamlined and bluff bodies are omnipresent and their characterization is crucial for the understanding of various fundamental and industrial processes such as; aircraft propulsion, transportation and wind energy generation. Unsteady 3D vortical structures are essentially characterized by complex multi-physics flow phenomena and instabilities. The overarching objective of the proposed research program is to further the current fundamental knowledge on the dynamics and the physical mechanisms governing complex 3D vortical flow phenomena and their interactions with streamlined and bluff bodies. The outcome of the proposed research work would be particularly beneficial for peer researchers and expert end-users in aerospace industries (Bell Textron Canada LTÉE, Bombardier) and energy sector (Hydro Quebec, LM Wind Power Canada Inc). The proposed research program will be mainly conducted in the large wind tunnel located at the Université de Sherbrooke (UDS). It has a closed test section of 1.82 m x 1.82 m and a top speed of the air flow is around 30 m/s that can be increased to around 42 m/s in the reduced section of 1.2 m x 1.82 m. State-of-the-art flow diagnostics techniques including; Hot Wire Anemometry (HWA) and Stereoscopic Particle Image Velocimetry (PIV), will be used to elucidate the spatiotemporal dynamics of unsteady 3D turbulent structures. The effect of flow parameters such as; Reynolds number, free stream turbulence, pressure gradient, ground effect, etc., will be evaluated. Highly qualified personnel (HQP) of different levels (PhD, Master and Undergraduate students) will be extensively trained to gain advanced skills and expertise in demand from many high-technology sectors in Canada (aerospace, wind energy production, etc.). HQP will benefit from a dynamic and a stimulating working environment at the Department of Mechanical Engineering of the UDS wherein advanced training programs are offered to acquire transversal competencies.