Investigation of unsteady wake-separated boundary layer interaction using particle-image-velocimetry

Uzol O., Zhang X. F. , Cranstone A., Hodson H.

52nd ASME Turbo Expo 2007, Montreal, Canada, 14 - 17 May 2007, pp.1791-1803 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Doi Number: 10.1115/gt2007-28099
  • City: Montreal
  • Country: Canada
  • Page Numbers: pp.1791-1803


The current paper presents an experimental investigation of the interaction between unsteady wakes and the separated boundary layer on the suction side of an ultra-high-lift low-pressure turbine airfoil. Two-dimensional Particle Image Velocimetry (PIV) measurements of the unsteady boundary layer over the T106C LP turbine profile were performed in a low speed linear cascade facility, at selected phases of passing wakes. The wakes are created by moving cylindrical bars across the inlet of the test section.