An experimental/theoretical study has been presented on the problem of the dynamic
equation of motion of a close to neutral buoyancy sphere (0.04 m in diameter) decelerating …

The drag of a sphere has been measured as it moves along the axis of a rotating, viscous
fluid. Rotation has been found to modify the classical low-Reynolds-number flow so that the …

When the angular amplitude of oscillation of a sphere in an infinite mass of elastico-viscous
fluid is fairly small, so that velocity and stress components may be expanded as power …

Unsteady flow analysis induced by a decelerating rotating sphere is the main concern of this
paper. A revolving sphere in a still fluid is supposed to slow down at an angular velocity rate …

The velocity field around a solid sphere, performing harmonic oscillations in an unbounded
viscous fluid otherwise at rest, is exactly determined to the second order for small values of …

An empirical model is developed to estimate the broadband unsteady force spectrum
induced on a rigid sphere in a nominally steady, uniform flow. The Reynolds number is sub …

A “heavy” sphere moving in upward Poiseuille flow is numerically investigated using direct
numerical simulations (DNS). The overset mesh and the moving computation domain are …

Rigid spherical particles in oscillating fluid flows form interesting structures as a result of fluid
mediated interactions. Here we show that spheres under horizontal vibration align …

We study the effects of both convective and unsteady inertia on the dynamics and rheology
of a dilute suspension of periodically forced neutrally buoyant spherical particles, at low …

This work began as an experiment, suggested by Alar Toomre, to excite inertial oscillations
in a rotating sphere of fluid by means of Ekman suction. The results of initial experiments …