Post-Doctoral Research Associate
ABSTRACT:
Air/fuel mixing in supersonic combustors is characterized by two aspects: extremely low residence times and the adverse effects of compressibility. Streamwise supersonic vortices have been of particular interest for their potential to enhance air/fuel mixing. The vorticity in these structures can be re-oriented and re-distributed by certain processes due to its vectorial nature, which suggests that it can be added to or subtracted from the flow by means of selected modes of vortex interactions. However, the turbulence dynamics associated with this class of flows has been left largely unexplored despite turbulence playing a significant role in the achievement of molecular mixing. One aspect of particular interest is the use of streamwise vortices as a mean to sustain turbulence against its natural decay, thus potentially enhancing molecular mixing in the supersonic regime.
The presentation will also include a brief discussion of the research effort with the Arc-Heated Wind Tunnel (AHWT-II) facility.
BIO: Dr. Davide Viganò has received both his B.Sc. and M.Sc. in Aerospace Engineering at the Politecnico di Milano in Italy, he then continued his studies in the U.S. where he obtained a Ph.D. in the same field from the University of Texas at Arlington in 2019. He has since continued his research work as Post-Doctoral Research Associate at the same university. His research, primarily experimental, focuses on fundamental investigations of mixing in turbulent supersonic flows, and its application to hypersonic air-breathing propulsion, as well as Arc-Heated wind tunnels, and its related intrusive instrumentation, development. Dr. Viganò has worked on projects funded by the Defense Advanced Research Projects Agency (DARPA), the Office of Naval Research (ONR) and the Department Of Energy (DOE). Dr. Viganò is a member of AIAA and has been co-awarded for the Hypersonics best conference paper in 2018.
Date: Friday, January 28, 2022
Time: 2:00-3:00PM
Location: Jett Hall 259 and https://nmsu.zoom.us/j/2341818206
