[HTML][HTML] Turbulent drag reduction by polymer additives: Fundamentals and recent advances

L Xi - Physics of Fluids, 2019 - pubs.aip.org
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 …

Mechanics and prediction of turbulent drag reduction with polymer additives

CM White, MG Mungal - Annu. Rev. Fluid Mech., 2008 - annualreviews.org
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 …

On the coherent drag-reducing and turbulence-enhancing behaviour of polymers in wall flows

Y Dubief, CM White, VE Terrapon… - Journal of Fluid …, 2004 - cambridge.org
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 IPOS framework: linking fish swimming performance in altered flows from laboratory experiments to rivers

RWJ Lacey, VS Neary, JC Liao… - River Research and …, 2012 - Wiley Online Library
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 …

Roles of drag reducing polymers in single-and multi-phase flows

A Abubakar, T Al-Wahaibi, Y Al-Wahaibi… - … research and design, 2014 - Elsevier
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 …

New answers on the interaction between polymers and vortices in turbulent flows

Y Dubief, VE Terrapon, CM White, ESG Shaqfeh… - Flow, turbulence and …, 2005 - Springer
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 …

Effects of polymer stresses on eddy structures in drag-reduced turbulent channel flow

K Kim, CF Li, R Sureshkumar… - Journal of Fluid …, 2007 - cambridge.org
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 …

Influence of rheological parameters on polymer induced turbulent drag reduction

CF Li, R Sureshkumar, B Khomami - Journal of Non-Newtonian Fluid …, 2006 - Elsevier
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 …

Polymer degradation of dilute solutions in turbulent drag reducing flows in a cylindrical double gap rheometer device

AS Pereira, EJ Soares - Journal of Non-Newtonian Fluid Mechanics, 2012 - Elsevier
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 …

Polymer drag reduction: A review through the lens of coherent structures in wall-bounded turbulent flows

Z Saeed, BR Elbing - Physics of Fluids, 2023 - pubs.aip.org
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 …