Settling of an asymmetric dumbbell in a quiescent fluid
Settling of an asymmetric dumbbell in a quiescent fluid
We compute the hydrodynamic torque on a dumbbell (two spheres linked by a massless rigid rod) settling in a quiescent fluid at small but finite Reynolds number. The spheres have the same mass densities but different sizes. When the sizes are quite different the dumbbell settles vertically, aligned with the …