Abstract
This paper describes the results of experimental and numerical studies about the heat transfer and flow dynamics in the leading edge region on a symmetric airfoil. The effect of boundary layer thickenss was investigated. Local heat transfer coefficient is measured by naphthalene sublimation method. By using a Particle Image Velocimetry (PIV), instantaneous flow field data near the junction of an airfoil and endwall have been studied. Furthermore, the experimental results are compared to the computational results solved by Detached Eddy Simulation (DES). The value of primary peak is unchanged as the boundary layer thickness is changed from 20 to 40mm.
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