92 citations · 214 across the 12 of their papers we have counts for
13 papers
Emergence of Purely Elasto-Plastic Turbulence in Shear Flows
Muhammad Abdullah, Shravan Pradeep, Doug J. Jerolmack +2
We observe the emergence of a distinct, elasticity-driven flow state in a yield-stress fluid in the absence of inertia. Numerical simulations show that this elasto-plastic turbulen…
Corkscrew motion of Trypanosoma brucei is driven by helical beating of the flagellum and facilitated by its bent shape
Sizhe Cheng, Devadyouti Das, Mykhaylo Barchuk +4
In the pathogenic parasite Trypanosoma brucei, a laterally attached flagellum drives rapid deformation of the complex cell body, producing puzzling dynamics. High-speed defocusing…
Quantification of Flagellar Gait Changes with Combined Shape Mode Analysis and Swimming Simulations
Kelli E. Gutierrez, Becca Thomases, Paulo E. Arratia +1
Many different microswimmers propel themselves using flagella that beat periodically. The shape of the flagellar beat and swimming speed have been observed to change with fluid rhe…
A Period-Doubling Route to Chaos in Viscoelastic Kolmogorov Flow
Jeffrey Nichols, Robert D. Guy, Becca Thomases
Polymer solutions can develop chaotic flows, even at low inertia. This purely elastic turbulence is well studied, but little is known about the transition to chaos. In 2D channel f…
Effect of fluid elasticity on the emergence of oscillations in an active elastic filament
Kathryn G. Link, Robert D. Guy, Becca Thomases +1
Many microorganisms propel through complex media by deformations of their flagella. The beat is thought to emerge from interactions between forces of the surrounding fluid, passive…
Polymer stress growth in viscoelastic fluids in oscillating extensional flows with applications to micro-organism locomotion
Becca Thomases, Robert D. Guy
Simulations of undulatory swimming in viscoelastic fluids with large amplitude gaits show concentration of polymer elastic stress at the tips of the swimmers.We use a series of rel…