The interaction of flexible polymers with fluid flows leads to a number of intriguing
phenomena observed in laboratory experiments, namely drag reduction, elastic turbulence …

A combined experimental, numerical and theoretical investigation of the geometric scaling of
the onset of a purely elastic flow instability in serpentine channels is presented. Good …

We report numerical evidence of elastic turbulence phenomenology in a two-dimensional
periodic Kolmogorov flow. By direct numerical simulations of the Oldroyd-B viscoelastic …

The properties of plasmaspheric drainage plumes are examined using cold‐plasma
measurements in geosynchronous orbit. During high‐speed stream‐driven storms, 210 …

Beneitez et al.(Phys. Rev. Fluids, vol. 8, 2023, L101901) have recently discovered a new
linear 'polymer diffusive instability'(PDI) in inertialess rectilinear viscoelastic shear flow using …

The chaotic flow of elastic fluids at low Reynolds number (R e) is typically distinguished into
elasto-inertial and elastic turbulence (EIT/ET). However, the clear separation among these …

Kolmogorov flow in two dimensions–the two-dimensional (2D) Navier–Stokes equations
with a sinusoidal body force–is considered over extended periodic domains to reveal …

We investigate the dynamics of the two-dimensional periodic Kolmogorov flow of a
viscoelastic fluid, described by the Oldroyd-B model, by means of direct numerical …

Elastic turbulence is a chaotic flow state observed in dilute polymer solutions in the absence
of inertia. It was discovered experimentally in circular geometries and has long been thought …

Motivated by the recent numerical results of Khalid et al.(Phys. Rev. Lett., vol. 127, 2021,
134502), we consider the large-Weissenberg-number (neutral curve, confirming the inferred …