Flow regimes in the cove regions between a slat and wing and between a wing and flap of a multielement airfoil

Abstract

An experimental study was made of the flow regimes associated with the cove regions of a multielement airfoil. These regions occur when the leading edge slats and trailing edge flaps on the wings are extended to generate high lift during takeoff and landing of the aircraft. The results include mean velocity and turbulence intensity data, measured between the slat and wing and between the wing and flap, together with comprehensive pressure distributions around the three airfoil components. This information should be of value in the development of numerical models for predicting the flow around high-lift airfoils.