Abstract
This paper describes a new visualizing method of streamlines around models in hypersonic flows by using an electrical discharge. First, the visualization of a streamline around a wedge is carried out. The result shows that the visualized streamline in the shock layer is approximately parallel to the wedge surface. The theoretical streamline is considered to be parallel to the wedge surface. From this, it is proved that the new method is available for the visualization of streamlines around hypersonic vehicles. Moreover, the visualization of a streamline around a more complicated model shape is carried out, successfully.
