FBGカンチレバーセンサーによる翼面上流れ場の剥離検知

抄録

The use of the Fiber Bragg Grating (FBG) cantilever sensor was attempted for the detection of flow separation. This optical sensor detects a shift of the wavelength of the reflected light corresponding to the amount of strain caused in the optical fiber. We successfully examined the sensing of the direction of flows. In the next stage, this sensor was installed at trailing edge of an aerofoil, to investigate the performance of the sensor and the characteristics of the flow separation. As a result, it is found that this sensor could catch the changing of the flow direction due to flow separation.