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physics.flu-dyn2025
Helical Locomotion in Yield Stress Fluids
Farshad Nazari Kourosh Shoele, Hadi Mohammadigoushki
We report three stages for locomotion of a helical swimmer in yield stress fluids. In the first stage, the swimmer must overcome material's yield strain to generate rotational moti…
physics.flu-dyn2022
Mode Competition in a Plunging Foil with an Active Flap: A Multi-Scale Modal Analysis Approach
Tso-Kang Wang, Kourosh Shoele
The flow-induced flutter has a significant role in aircraft stability, renewable energy extraction, animal locomotion, among many other applications. While being a ubiquitous pheno…
physics.flu-dyn2019
Axisymmetric Squirmers in Stokes Fluid with Nonuniform Viscosity
Patrick S. Eastham, Kourosh Shoele
The ciliary locomotion and feeding of an axisymmetric micro-swimmer in a complex fluid whose viscosity depends on nutrient concentration are investigated numerically. The micro-swi…