Improved rheometry is provided using an autonomous swimming robot that can be driven at least in an angular velocity mode and in a torque mode. The resulting improved capability can enable measurement of multiple rheological parameters, such as both …
We present a self-propelled axisymmetric low-Reynolds-number swimmer (force- and torque-free) that, while unable to swim in a Newtonian fluid, propels itself in a non-Newtonian fluid as a result of fluid elasticity. The propulsion gait is pure …
Microscopic organisms must frequently swim through complex biofluids, including bacterial biofilms and the mucus lining of the upper respiratory tract. Recently, there has been great interest in understanding how the non-Newtonian behavior of the …
We investigate aspects of the spherical squirmer model employing both large-scale numerical simulations and asymptotic methods when the squirmer is placed in weakly elastic fluids. The fluids are modelled by differential equations, including the …
Microorganisms are commonly found swimming in complex biological fluids such as mucus and these fluids respond elastically to deformation. These viscoelastic fluids have been previously shown to affect the swimming kinematics of these microorganisms …
Microorganisms often move through viscoelastic environments, as biological fluids frequently have a rich microstructure owing to the presence of large polymeric molecules. Research on the effect of fluid elasticity on... Microorganisms often move …