Origin of transonic buffet on aerofoils

By J. Crouch, A. Garbaruk, D. Magidov, A. Travin. Journal of Fluid Mechanics, 2007

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Stability, Receptivity, and Sensitivity Analyses of Buffeting Transonic Flow over a Profile (2015, background): “In agreement with [18], an eigenvalue decomposition of the Jacobian matrix indicates that the buffet phenomenon is linked to a global instability of the flow.”
Mechanism of frequency lock-in in vortex-induced vibrations at low Reynolds numbers (2015, methodology): “Apart from the global LSA method (Cai, Liu & Luo 2003; Crouch, Garbaruk & Magidov 2007; Crouch et al. 2009; Leontini, Thompson & Hourigan 2010), the system identification method (Zhang & Ye 2007; Dahan, Morgans & Lardeau 2012; Illingworth, Morgans & Rowley 2012; Brunton, Rowley & Williams 2013) has…”
Buffet-Onset Constraint Formulation for Aerodynamic Shape Optimization (2017, methodology): “Although the literature is split on whether or not steady RANS accurately models transonic buffet, Rumsey et al. [60] reported steady RANS predictions that were consistent with flight data through the buffet-onset regime and up to near the maximum lift coefficient.”