Figure 6
From: Preventing a global transition to thermoacoustic instability by targeting local dynamics
Evolution of the amplitude spectra obtained from short-time Fourier transform of the \(p^{\prime }\) (a,c,e) and \(\dot{Q}^{\prime }\) (b,d,f) time series for BL bluff body (a,b), IS bluff body (c,d) and OS bluff body (e,f). With the introduction of the slots, additional dominant frequencies do not emerge in comparison to BL.
