It is known that, in a linear shear flow, fluid inertia causes a particle to spin more slowly than the surrounding fluid. The present experiments performed with a sphere with fixed centre …
We numerically analyze the rotation of a neutrally buoyant spheroid in a shear flow at small shear Reynolds number. Using direct numerical stability analysis of the coupled nonlinear …
A freely rotating sphere in a solid-body rotating flow is experimentally investigated. When the sphere is buoyant, it reaches an equilibrium position from which drag and lift coefficients are …
J Zhang, X Zhang, N Wang, H Liu, G Xi - Physics of Fluids, 2021 - pubs.aip.org
Centrifugal rotation is one of the most important techniques for separating and purifying particles or cells, which enables broad applications in biomedicine and chemistry. To study …
F Romanò - Journal of Fluid Mechanics, 2018 - cambridge.org
The dynamics of a small rigid spherical particle in an unbounded pulsating vortex is considered, keeping constant the particle Stokes number, turning the vortex core either into …
Dynamics of a solid particle and non-deformable gaseous bubble in viscous fluid are studied analytically and numerically within the framework of creeping flow regime (flow at …
We consider small oscillations of micro-particles and gaseous bubbles in a viscous fluid around equilibrium states under the action of a sinusoidal external force. Exact solutions to …
S Xu, A Nadim - Physics of Fluids, 2016 - pubs.aip.org
In ordinary centrifugation, a suspended particle that is heavier than the displaced fluid migrates away from the rotation axis when the fluid-filled container rotates steadily about that …
F Candelier - Journal of Fluid Mechanics, 2008 - cambridge.org
The arbitrary motion of a solid sphere released in a solid-body rotating fluid is investigated theoretically in the limit of small Reynolds and Taylor numbers. The angular velocity of the …