This note reviews the occurrence of extensional flow topics in the rheological literature. A simple approach is taken so the results have to be regarded with caution.

We review the design and construction of several new microrheometers designed to facilitate the study of non-Newtonian fluids using very small sample volumes (1-10 μl) and on length scales of micrometer dimensions. These devices enable both the steady shear and transient extensional rheological properties of complex fluids to be measured. The shear-rate-dependent viscosity and gap-dependent yie...

The unique rheological properties of viscoelastic wormlike micelle solutions have led to their broad use as rheological modifiers in consumer products such as paints, detergents, pharmaceuticals, lubricants and emulsifiers. In addition, micelle solutions have also become increasingly important in a wide range of industrial and commercial applications including agrochemical spraying, inkjet prin...

This work analyses the interaction of red blood cells (RBCs) with shock-induced and bubble-induced flows in shock wave lithotripsy (SWL), and calculates, in vitro, the lytic effects of these two flows. A well known experimentally observed fact about RBC membranes is that the lipid bilayer disrupts when subjected to an areal strain (deltaA/A)c of 3%, and a corresponding, critical, isotropic tens...

In this study, we show the importance of extensional rheology, in addition to the shear rheology, in the choice of blood analog solutions intended to be used in vitro for mimicking the microcirculatory system. For this purpose, we compare the flow of a Newtonian fluid and two well-established viscoelastic blood analog polymer solutions through microfluidic channels containing both hyperbolic an...