The first order solution of the problem of the supersonic flow past a flat elliptic cone set symmetrically to the wind indicates that the pressure over the surface is constant if the body lies within the Mach cone of the ...
N. Gregory; V. G. Quincey; C L O'Reilly; D. J. Hall(1971)
Surface oil-flow patterns were used at low speeds on both thick and thin aerofoils to show the onset of three-dimensionality in either separation or re-attachment when there is an appreciable extent of the separated flow ...