Transient growth and resolvent analyses are routinely used to assess nonasymptotic
properties of fluid flows. In particular, resolvent analysis can be interpreted as a special case …

Advanced measurement techniques and high-performance computing have made large
data sets available for a range of turbulent flows in engineering applications. Drawing on …

We utilize resolvent and weakly nonlinear analyses in combination with direct numerical
simulations (DNS) to identify mechanisms for oblique transition in a Mach hypersonic flow …

We utilize the externally forced linearized Navier-Stokes equations to study the receptivity of
pre-transitional boundary layers to persistent sources of stochastic excitation. Stochastic …

We propose an approach to predict the modulation of wave packets in shock-containing jets.
With a modeled ideally expanded mean flow as input, an approximation of the shock-cell …

By means of nonlinear optimization, we seek the velocity disturbances at a given upstream
position that suppress a laminar separation bubble as effectively as possible. Both steady …

Jet noise in turbulent round jets has been linked to coherent structures with low-rank
azimuthal wavenumbers. This work proposes a novel, non-intrusive method for optically …

The parabolized stability equations (PSE) are a widely used, efficient method to calculate
the evolution of streamwise traveling instabilities in spatially developing, weakly nonparallel …

In this work we analyse the sound generation mechanism behind broadband shock-
associated noise (BBSAN) using recently developed models that predict the characteristics …

The Parabolized Stability Equations (PSE) have been widely applied in the computation of
perturbations in pre-transitional boundary layers. The formulation of the PSE nonetheless …