SUTDY OF 2D SMALL-SIGNAL GAIN FOR A SUPERSONIC COIL BY A SCANNING MIRROR
D small-signal gain of a supersonic COIL by a scanning polyhedron mirror was got firstly in out laboratory. The small signal gain along flow direction changes very slow and drops in the near of upper and lower wall. The boundary lay is thicker wih the distance from the nozzle exit plane and the average thickness is about 4～8mm.