3 papers
physics.flu-dyn2025
Sparsity-promoting methods for isolating dominant linear amplification mechanisms in wall-bounded flows
Scott T. M. Dawson, Jaime Prado Zayas, Barbara Lopez-Doriga
This work proposes a method to identify and isolate the physical mechanisms that are responsible for linear energy amplification in fluid flows. This is achieved by applying a spar…
physics.flu-dyn2024
Wavelet-based resolvent analysis of non-stationary flows
Eric Ballouz, Barbara Lopez-Doriga, Scott T. M. Dawson +1
This work introduces a formulation of resolvent analysis that uses wavelet transforms rather than Fourier transforms in time. Under this formulation, resolvent analysis may extend…
physics.flu-dyn2024
Sparse space-time resolvent analysis for statistically-stationary and time-varying flows
Barbara Lopez-Doriga, Eric Ballouz, H. Jane Bae +1
Resolvent analysis provides a framework to predict coherent spatio-temporal structures of largest linear energy amplification, through a singular value decomposition (SVD) of the r…