..., with an orifice controlling the amount of bled air. The testbed itself is made of transparent poly-methyl methacrylate (PMMA) to allow the optical access required by pressure sensitive paint (PSP) measurements. Then, at the right end of the rig, i.e., downstream of the test bed, two vacuum pumps draw the main...

... tunnel tests. The film cooling effectiveness on a flat wall was measured by a pressure sensitive paint (PSP) technique. In addition, the spatial distributions of the nondimensional concentration (or temperature) and flow field were measured by laser-induced fluorescence (LIF) and particle image...