In attempts to better understand VIV’s and their …show more content…
This mechanism is source in the formation of boundary layers and is highly sensitive to the Reynold’s number. At low Re values, frictional drag influences the nature of attached flows around a bluff body. In contrast, pressure drag is attributed to motion produced by eddies generated in the flow at higher Re values, but is less sensitive to the Reynold’s number. It is important for separated flows and is associated with the formation of the wake following a bluff body. For streamlined bodies, viscous drag has more of a prominent role, while pressure drag has more of an effect on the behavior of bluff