Viscous Flow in a Controlled Diffusion Compressor Cascade With Increasing Incidence

A detailed two-component laser Doppler velocimeter mapping of the flow through a controlled diffusion compressor cascade at low Mach number (∼ 0.25) and Reynolds number of about 7×10 5 , at three inlet air angles from design to near stall, is reported. Results for pressure-side boundary layer and near-wake also are summarized. Information sufficient to allow preliminary assessment of viscous codes is tabulated