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physics.flu-dyn2026
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…
physics.flu-dyn2025
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…
physics.flu-dyn2025
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…