A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Consolidation of Non-Colloidal Spherical Particles at Low Particle Reynolds Numbers
When a system of identical spheres settles under conditions of negligible surface and inertial forces an idealised form of sediment consolidation unfolds amenable to a universal description. We have described this complex process using a simple constitutive model expressed as an elementary scaling law in time, t, applied at the local particle level. The free-volume surrounding a particle consists of two volume contributions occupied by fluid, one portion fixed and the other portion variable, the latter of which declines with t−2. A comprehensive system of analytical equations was derived using this one idea, and associated boundary conditions, to describe all aspects of the batch settling process. An experimental system exhibiting negligible surface and inertial forces was used to validate the model and hence assess the merits of the scaling law. Excellent agreement was achieved. The precise physics responsible for this scaling law, and the applicable boundary conditions, remain unclear at this stage. Hence this work is likely to motivate further work in this area, concerned with the dynamics of random consolidation of settling spheres.
Consolidation of Non-Colloidal Spherical Particles at Low Particle Reynolds Numbers
When a system of identical spheres settles under conditions of negligible surface and inertial forces an idealised form of sediment consolidation unfolds amenable to a universal description. We have described this complex process using a simple constitutive model expressed as an elementary scaling law in time, t, applied at the local particle level. The free-volume surrounding a particle consists of two volume contributions occupied by fluid, one portion fixed and the other portion variable, the latter of which declines with t−2. A comprehensive system of analytical equations was derived using this one idea, and associated boundary conditions, to describe all aspects of the batch settling process. An experimental system exhibiting negligible surface and inertial forces was used to validate the model and hence assess the merits of the scaling law. Excellent agreement was achieved. The precise physics responsible for this scaling law, and the applicable boundary conditions, remain unclear at this stage. Hence this work is likely to motivate further work in this area, concerned with the dynamics of random consolidation of settling spheres.
Consolidation of Non-Colloidal Spherical Particles at Low Particle Reynolds Numbers
Kevin P. Galvin (author) / Marveh Forghani (author) / Elham Doroodchi (author) / Simon M. Iveson (author)
2015
Article (Journal)
Electronic Resource
Unknown
Metadata by DOAJ is licensed under CC BY-SA 1.0
Packing Density and Consolidation Energy of Colloidal Particles through Pressure Filtration
| British Library Conference Proceedings | 2006
SPHERICAL ALN PARTICLE PRODUCTION METHOD AND SPHERICAL ALN PARTICLES
| European Patent Office | 2020
Uniform spherical colloidal palladium particles by reduction of solid complex precursors
| British Library Online Contents | 1994
Consolidation around a spherical heat source
| TIBKAT | 1984
Lateral Dispersion in Vegetated Flows: Reynolds-number Dependence at Transitional Reynolds Numbers
| British Library Conference Proceedings | 2009