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physics.flu-dyn2022
Flow field disturbance due to point viscosity variations in a heterogeneous fluid
Debasish Das
We derive the flow field disturbance produced by point viscosity variations in a heterogeneous fluid when subject to a background flow while neglecting fluid inertia. The disturban…
physics.flu-dyn2019
Transition to bound states for bacteria swimming near surfaces
Debasish Das, Eric Lauga
It is well known that flagellated bacteria swim in circles near surfaces. However, recent experiments have shown that a sulfide-oxidizing bacterium named Thiovulum majus can transi…