483 citations · 1k across the 21 of their papers we have counts for
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Nonlinear stochastic modeling with Langevin regression
Jared L. Callaham, Jean-Christophe Loiseau, Georgios Rigas +1
Many physical systems characterized by nonlinear multiscale interactions can be effectively modeled by treating unresolved degrees of freedom as random fluctuations. However, even…
Optimal eddy viscosity for resolvent-based models of coherent structures in turbulent jets
Ethan Pickering, Georgios Rigas, Oliver T. Schmidt +2
Response modes computed via linear resolvent analysis of a turbulent mean-flow field have been shown to qualitatively capture characteristics of the observed turbulent coherent str…
Non-linear input/output analysis: application to boundary layer transition
Georgios Rigas, Denis Sipp, Tim Colonius
We extend linear input/output (resolvent) analysis to take into account nonlinear triadic interactions by considering a finite number of harmonics in the frequency domain using the…