The dissolution of minute concentration of polymers in wall-bounded flows is well-known for
its unparalleled ability to reduce turbulent friction drag. Another phenomenon, elasto-inertial …

The Oldroyd-B model has been used extensively to predict a host of instabilities in shearing
flows of viscoelastic fluids, often realized experimentally using polymer solutions. The …

Viscoelastic fluids are a common subclass of rheologically complex materials that are
encountered in diverse fields from biology to polymer processing. Often the flows of …

Elasto-inertial turbulence (EIT) is a new, two-dimensional chaotic flow state observed in
polymer solutions with possible connections to inertialess elastic turbulence and drag …

Viscoelastic plane Poiseuille flow is shown to become linearly unstable in the absence of
inertia, in the limit of high elasticities, for ultradilute polymer solutions. While inertialess …

A modal stability analysis shows that plane Poiseuille flow of an Oldroyd-B fluid becomes
unstable to a 'centre mode'with phase speed close to the maximum base-flow velocity,. Our …

Weakly nonlinear analysis of the viscoelastic instability in channel flow for finite and vanishing
Reynolds numbers Page 1 J. Fluid Mech. (2022), vol. 940, A11, doi:10.1017/jfm.2022.222 …

A modal stability analysis shows that pressure-driven pipe flow of an Oldroyd-B fluid is
linearly unstable to axisymmetric perturbations, in stark contrast to its Newtonian counterpart …

Direct simulations of two-dimensional channel flow of a viscoelastic fluid have revealed the
existence of a family of Tollmien-Schlichting (TS) attractors that is nonlinearly self-sustained …

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 …