3-09-1

[3-09-1-03] Improvement of Extraction Method of the Fizeau Fringes Spacing in the Oil Film Interferometry and Measurement of Wall Shear Stress on an Airfoil Surface

*Tatsuhiko Imai¹, Yasumasa Suzuki², Yuya Miki² (1. Department of Mechanical Engineering, Graduate School, Nihon University, 2. Department of Mechanical Engineering, College of Science & Technology, Nihon University)

Keywords:Oil film interferometry, Image analysis, Airfoil flow, Separated flow, Wall shear stress