Analysis of time-resolved PIV measurements of a confined turbulent jet using POD and Koopman modes

By Onofrio Semeraro, G. Bellani, F. Lundell. 2012

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Spectral proper orthogonal decomposition and its relationship to dynamic mode decomposition and resolvent analysis (2017, background): “…a nonzero mean, but in practice the physically-relevant DMD modes tend to have have nearly zero growth/decay rates for stationary flows (e.g., Rowley et al., 2009; Chen et al., 2012; Schmid et al., 2012; Semeraro et al., 2012), which is logical since stationary flows are persistent by definition.”
On dynamic mode decomposition: Theory and applications (2013, background): “For instance, DMD has been applied in the study of the wake behind a flexible membrane [8], the flow around high-speed trains [9], instabilities in annular liquid sheets [10], shockwave-turbulent boundary layer interactions [11], detonation waves [12], cavity flows [8,13], and various jets [3,8,14,1”
Model Reduction for Flow Analysis and Control (2017, methodology): “Integration of non-time-resolved PIV and time-resolved velocity point sensors for dynamic estimation of velocity fields.”