Abstract
This paper describes the technique of three-dimensional graphic display for the shock wave structures. The shock waves generated at a "U" shaped pin which is moving in the supersonic flow field of a converging-diverging nozzle is visualized by the double pulsed holographic interferometry. The hologram obtained by this method is reconstructed and the shock wave profiles at each of the cross-sections of the real image are thinned by image processing. The numerical data which indicated the thinned shock waves are constructed by computer graphics techniques. As a result, the three-dimensional shock wave structures were clearly visualized by graphic display.
