Observation of Horseshoe Vortex in Juncture Flow

Abstract

Observation of a flow around the juncture between flat plate and airfoil was made. The influence of the nose curvature on the separation region was examined using the series models which have different nose curvature. The wake flow behind the airfoil is also visualized. The streakline of milk, injected from the junction point on the plate, shows clearly the unsteady vortex like flow.