45 citations · 59 across the 9 of their papers we have counts for
8 papers · 1 filter
Weakly coupled fluid-structure interaction between wall-bounded turbulent flows and defect-embedded phononic subsurfaces
Ching-Te Lin, Vinod Ramakrishnan, Andres Goza +2
We investigate the interaction between wall-bounded turbulence and defect-embedded phononic subsurface (D-Psub) using a weakly coupled fluid--structure framework, in which the flow…
Transient growth and nonlinear breakdown of wavelet-based resolvent modes in turbulent channel flow
Eric Ballouz, Scott T. M. Dawson, H. Jane Bae
We study the effectiveness of the time-localised principal resolvent forcing mode at actuating the near wall cycle of turbulence. The mode is restricted to a wavelet pulse and comp…
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…
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…
Are the dynamics of wall turbulence in minimal channels and larger domain channels equivalent? A graph-theoretic approach
Ahmed Elnahhas, Emma Lenz, Parviz Moin +2
This work proposes two algorithmic approaches to extract critical dynamical mechanisms in wall-bounded turbulence with minimum human bias. In both approaches, multiple types of coh…
Linear and nonlinear Granger causality analysis of turbulent duct flows
Barbara Lopez-Doriga, Marco Atzori, Ricardo Vinuesa +3
This research focuses on the identification and causality analysis of coherent structures that arise in turbulent flows in square and rectangular ducts. Coherent structures are fir…
Transient growth of wavelet-based resolvent modes in the buffer layer of wall-bounded turbulence
Eric Ballouz, Scott T. M. Dawson, H. Jane Bae
In this work, we study the transient growth of the principal resolvent modes in the minimal flow unit using a reformulation of resolvent analysis in a time-localized wavelet basis.…
Resolvent-based study of compressibility effects on supersonic turbulent boundary layers
H. Jane Bae, Scott T. M. Dawson, Beverley J. McKeon
The resolvent formulation of McKeon & Sharma (2010) is applied to supersonic turbulent boundary layers to study the validity of Morkovin's hypothesis, which postulates that high-sp…