Abstract
The focusing system can visualize the three-dimensional flow field. It is the attractive visualization method in the high speed wind tunnel testing. In the present study, a focusing system was designed with referring to the Weinsten's system to visualize the shock tube airfoil flow. Also the measurement gauge was developed to investigate the visualization characteristics of this system. As a first step, we investigated the resolution at the focus location of the test section, and the visualization around a double wedge airfoil model was performed by this system.
