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physics.flu-dyn2026
Rotation-to-translation conversion by geometric asymmetry in viscoelastic fluids
Takuya Kobayashi, Hiroki Kitano, Ryoichi Yamamoto
Microscale locomotion in Newtonian fluids is constrained by kinematic reversibility. Here we show that viscoelasticity provides a distinct route: an achiral fore-aft asymmetric bod…
physics.flu-dyn2025
Viscotaxis of chiral microswimmer in viscosity gradients
Takuya Kobayashi, Ryoichi Yamamoto
Microswimmers display an intriguing ability to navigate through fluids with spatially varying viscosity, a behavior known as viscotaxis, which plays a crucial role in guiding their…
physics.flu-dyn2024
Steady Motions of Single Spherical Microswimmers in Non-Newtonian Fluids
Takuya Kobayashi, Ryoichi Yamamoto
In biological systems, microswimmers often propel themselves through complex media. However, many aspects of swimming mechanisms in non-Newtonian fluids remain unclear. This study…