Affiliations: Faculty of Science and Technology, Meijo University,
1-510 Shiogamaguchi, Tenpaku-ku, Nagoya 468-8502, Japan. | Faculty of Engineering, Nagoya University, Furo-cho,
Chikusa-ku, Nagoya 464-8603, Japan.
Abstract: The flow field structures of low density supersonic free jets
impinging on a tilt plate are studied by hybrid use of LIF (Laser Induced
Fluorescence) and PSP (Pressure Sensitive Paint). The jet through an orifice
flows into a low pressure chamber and impinges on the tilt plate with angle
from jet axis 45, 60 or 90 degrees. A plane including the jet axis and the
normal of the plate is visualized by LIF of seeded iodine molecules, scanning a
laser beam along the jet axis. On the other hand, the pressure distribution on
the tilt plate is visualized by PSP. In comparing the results of the two
methods, the complicated shock wave system is analyzed. Deformations of the
Mach disk and the barrel shock are also confirmed.
