Abstract
AbstractExcitation of a separated boundary layer on the suction surface of a controlled-diffusion (C-D) compressor stator blade is studied using large eddy simulation (LES) at a Reynolds number (Re) of \(2.1 \times 10^{5}\) following experiment of Hobson et al. (J Propul Power 17(1):154–162, 2001) [1]. At this Re, the boundary layer on the blade remains laminar till the mid-chord, where it separates, undergoes a rapid transition due to high receptivity to free-stream disturbances and then reattaches as a turbulent boundary layer. The features of the flow are the formation of Kelvin–Helmholtz (K–H) rolls and their breakdown, revealing dynamics of coherent vortices and their nonlinear interactions.KeywordsLESCompressor bladeSeparation bubbleTransition and turbulent flow
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
