Abstract
Wakes generated by upstream airfoil rows create an unsteady flowfield to downstream rows of a low-pressure turbine. Pressure gradients and local turbulence intensity levels imposed on the airfoil surface boundary layers change as the wakes pass through the passage. Separation and laminar-to-turbulent transition onset locations and transition path characteristics also change during the wake passing cycle. The effects of unsteady acceleration (composed of spatial acceleration and temporal acceleration) and time variations in turbulence intensity on transition onset and transition path are described
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