155 citations · 558 across the 25 of their papers we have counts for
25 papers
Large-scale streak instabilities of transitional channel flow
Nicola Ciola, Yohann Duguet, Jean-Christophe Robinet +2
The emergence of large-scale spatial modulations of turbulent channel flow, as the Reynolds number is decreased, is addressed numerically using the framework of linear stability an…
The route to turbulence in magnetohydrodynamic square duct flow
Mattias Brynjell-Rahkola, Yohann Duguet, Thomas Boeck
The transition route from laminar to turbulent flow in a magnetohydrodynamic (MHD) duct with a square cross-section is investigated in the limit of low magnetic Reynolds number. In…
From annular cavity to rotor-stator flow: nonlinear dynamics of axisymmetric rolls
Artur Gesla, Patrick Le Quéré, Yohann Duguet +1
Spatio-temporally complex flows are found at the onset of unsteadiness in (axisymmetric) rotor-stator turbulence in the shape of concentric rolls. The emergence of these rolls is r…
Laminar-Turbulent Patterns in Shear Flows : Evasion of Tipping, Saddle-Loop Bifurcation and Log scaling of the Turbulent Fraction
Pavan V. Kashyap, Juan F. Marìn, Yohann Duguet +1
We analyze a one-dimensional two-scalar fields reaction advection diffusion model for the globally subcritical transition to turbulence. In this model, the homogeneous turbulent st…
Computation and stability analysis of periodic orbits using finite differences, Fourier or Chebyshev spectral expansions in time
Artur Gesla, Yohann Duguet, Patrick Le Quéré +1
We analyse and compare several algorithms to compute numerically periodic solutions of high-dimensional dynamical systems and investigate their Floquet stability without building t…
Linear stability of turbulent channel flow with one-point closure
P. V. Kashyap, Y. Duguet, O. Dauchot
For low enough flow rates, turbulent channel flow displays spatial modulations of large wavelengths. This phenomenon has recently been interpreted as a linear instability of the tu…