Abstract High molecular weight (106–3× 107 Da) polyacrylamide (PAM) is commonly used
as a flocculant in water and wastewater treatment, as a soil conditioner, and as a viscosity …

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 …

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 …

Unconventional formations such as the Eagle Ford, Niobrara and Bakken have made a
significant impact on the oil industry over the last decade, but primary recovery factors are …

Wall-bounded turbulence exhibits patterns that persist in time and space: coherent
structures. These are important for transport processes and form a conceptual framework for …

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 …

Fluid turbulence is commonly associated with stronger drag, greater heat transfer, and more
efficient mixing than in laminar flows. In many natural and industrial settings, turbulent liquid …

Superhydrophobic surfaces have the potential to reduce the viscous drag of liquids by
significantly decreasing friction at a solid-liquid interface due to the formation of air layers …

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Nearly 70 years old, hydraulic fracturing is a core technique for stimulating hydrocarbon
production in a majority of oil and gas reservoirs. Complex fluids are implemented in nearly …