Variation of Spanwise Circulation across an Aircraft Fuselage: Pressure Measurements for a Body of Revolution in the Presence of a Lifting Wing

摘要

An experimental study of the load characteristics of a separated wing and body model was carried out in the VKI low speed wind tunnel. Measurements of the pressure distribution on the model were made for different wing pitch angles and wing-body gap heights. The body pitch angle was zero. Derived data consist of body chordwise and spanwise lift distributions, wing spanwise lift distribution and wing pitching moment distribution. Results show that the body always develops negative lift in the presence of the wing. Wing and body spanwise lift distribution magnitude are monotonically decreasing from centerline to wing root, but their distribution curve shapes are different. When the wing-body gap is filled, the spanwise lift distribution for the resultant configuration shows the lift increasing from wing root to centerline, a result considered typical of a high-mounted wing. (Author)