Complex fluids exist in nature and are continually engineered for specific applications
involving the addition of macromolecules to a solvent, among other means. This imparts …

Complex and active fluids find broad applications in flows through porous materials.
Nontrivial rheology can couple to porous microstructure leading to surprising flow patterns …

The efficiency of drag reduction (DR) is known to be impaired by mechanical scission of
molecules, which is a great obstacle to the practical use of flexible polymeric drag reducers …

Microfluidics provides a versatile platform for handling small volumes of fluids at small length
scales. From a fluid dynamics perspective, microfluidics gives access to a regime of very …

Flow-based manipulation of particles is an essential tool for studying soft materials, but prior
work has nearly exclusively relied on using two-dimensional (2D) flows generated in planar …

Microfluidic contraction devices have been proposed for extensional rheometry
measurements, in particular as a useful method for determining the extensional viscosity of …

In this study, we optimise two types of multi-stream configurations (a T-junction and a flow-
focusing design) to generate a homogeneous extensional flow within a well-defined region …

In this work we discuss the implementation and the performance of an in-house viscoelastic
two-phase solver, based on a diffuse interface approach. The Phase-Field method is …

Combining and separating fluid streams at the microscale has many scientific, industrial,
and medical applications. This numerical and experimental study explores inertial …

This study conducted a two-dimensional numerical simulation of flow in continuous abrupt
contraction–expansion microchannel, using experimental measurements as input …