viscoelasticity

Self-propulsion of a freely suspended swimmer by a swirling tail in a viscoelastic fluid

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 …

Squirmers with swirl at low Weissenberg number

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 …

Swimming with swirl in a viscoelastic fluid

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 …

Three-Dimensional Simulations of Undulatory and Amoeboid Swimmers in Viscoelastic Fluids

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 …