Abstract:This work builds upon recent work exploiting the notion of structured singular values to capture nonlinear interactions in the analysis of wallbounded shear flows. In this context, the structured uncertainty can be interpreted in terms of the flow structures most likely to be amplified (the optimal perturbations). Here we further analyze these perturbations through a problem reformulation that decomposes this uncertainty into three components associated with the streamwise, wall-normal and spanwise velocity co… Show more
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