Improvements in or relating to the control of boundary layer conditions, at the surfaces of aerodynamic bodies, in particular over aircraft surfaces

摘要

1,106,531. Boundary layer control. HAWKER SIDDELEY AVIATION Ltd. 15 March, 1965 [16 March, 1964], No. 11020/64. Heading F2R. An arrangement for improving boundary layer conditions over the surface 11 of an aerodynamic body comprises the formation of an ionised sub boundary layer 12 next to a dielectric outer skin 13 the ionised layer being hindered from leaving the surface by electrostatic or electromagnetic forces created by plates 14 below the surface and charged by a generator 15. Apparatus is described for generating a stream of ionised gas for discharge over the body surface.