Abstract
Experiments of transonic fields over a delta wing are carried out in the ISAS large-scaled wind tunnel and the flow fields are investigated using both PSP and TSP measurements. Blue LED is used for a light source, and Ruthenium(II) complex is used for dye as the multipurpose PSP measuring method. Ruthenium(II) complex considered to be uncongenial to the binder of a polymer base, provides sufficient luminescence intensity when the combination ratio of dye and a binder is properly arranged. The Cp distributions on the delta wing measured by the PSP agree well with the pressure tap data at Mach number of 0.9 and angle of attack of 20 deg.
