Session | ||
PML: Prandtl Memorial Lecture: Laurette Tuckerman (Sorbonne U)
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Presentations | ||
Turbulent-laminar patterns Sorbonne Université Experiments and numerical simulations have shown that turbulence in transitional wall-bounded shear flows such as plane Couette and Poiseuille flow frequently takes the form of long oblique bands, if the domains are sufficiently large to accommodate them. At their upper Reynolds-number threshold, laminar regions carve out gaps in otherwise uniform turbulence, thereby forming regular oblique turbulent-laminar patterns with a large spatial wavelength. |