2 papers
physics.flu-dyn2024
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…
physics.flu-dyn2024
On the origin of circular rolls in rotor-stator flow
Artur Gesla, Yohann Duguet, Patrick Le Quéré +1
Rotor-stator flows are known to exhibit instabilities in the form of circular and spiral rolls. While the spirals are known to emanate from a supercritical Hopf bifurcation, the or…