A small amount of polymer additives can cause substantial reduction in the energy
dissipation and friction loss of turbulent flow. The problem of polymer-induced drag …

This article provides a review of recent progress in understanding and predicting polymer
drag reduction (DR) in turbulent wall-bounded shear flows. The reduction in turbulent friction …

Numerical simulations of turbulent polymer solutions using the FENE-P model are used to
characterize the action of polymers on turbulence in drag-reduced flows. The energetics of …

The current understanding of the effects of turbulence on the swimming performance of fish
is primarily derived from laboratory experiments under pressurised flow swim tunnels and …

It has become a well-known fact that finding sustainable solutions to the unavoidable high
pressure losses accompanying pipeline flows to increase the pumping capacity without …

Numerical data of polymer drag reduced flows is interpreted in terms of modification of near-
wall coherent structures. The originality of the method is based on numerical experiments in …

The effects of polymer stresses on near-wall turbulent structures are examined by using
direct numerical simulation of fully developed turbulent channel flows with and without …

Direct numerical simulations (DNS) of polymer induced drag reduction in turbulent channel
flows up to the maximum drag reduction (MDR) limit have been performed using a fully …

The drag reduction by high molecular weight polymer additives in a turbulent flow is an
important phenomenon that has received the attention of a number of researchers. However …

The current work qualitatively surveys the phenomenon of polymer drag reduction from the
standpoint of the salient coherent motions in the near-wall region of wall-bounded turbulent …