Abstract

Vortex-dominated flows are in abundance in engineering applications and natural environment. Vortical structures influence not only the flow field but also have major implications on forces and moments experienced by objects as well as noise generated by them. If we are able to predict/infer the presence and characteristics of vortices, then we might be able to harness their potential to our benefit. In this talk, I will present experimental results from two case studies of work carried out in our lab where vortical structures lead to detrimental performance as well as improved efficiency. These examples come from different applications including flow past bluff bodies to underwater flapping autonomous vehicles.